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Primary 5 Science Practice Paper 4
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TuitionGoWhere Practice Paper - Science Primary 5
TuitionGoWhere Practice Paper (AI)
Subject: Science
Level: Primary 5
Paper: Practice Paper 4 (Version 4 of 5)
Duration: 1 hour 45 minutes
Total Marks: 100
Name: ___________________________
Class: Primary 5 _______
Date: ___________________________
INSTRUCTIONS TO CANDIDATES
- Do not open this booklet until you are told to do so.
- Follow all instructions carefully.
- Answer all questions.
- The number of marks is given in brackets [ ] at the end of each question or part question.
- The total marks for this paper is 100.
- For Section A, shade your answers on the Optical Answer Sheet (OAS) provided.
- For Section B, write your answers in the spaces provided in this booklet.
- The use of calculators is NOT allowed.
SECTION A: Multiple-Choice Questions (56 marks)
Questions 1 to 28 carry 2 marks each. For each question, four options are given. Choose the correct answer and shade the corresponding oval (1, 2, 3 or 4) on the Optical Answer Sheet.
Topic: Diversity (Living and Non-Living Things)
1. Which of the following groups contains only living things?
(1) Cloud, rock, mushroom
(2) Bacteria, fern, earthworm
(3) Water, air, moss
(4) Sand, yeast, snail
2. Study the classification table below.
| Group X | Group Y |
|---|---|
| Mushroom | Rose plant |
| Yeast | Balsam plant |
| Mould | Hibiscus plant |
Which of the following headings best represent Group X and Group Y?
| Group X | Group Y | |
|---|---|---|
| (1) | Fungi | Flowering plants |
| (2) | Non-flowering plants | Flowering plants |
| (3) | Microorganisms | Plants |
| (4) | Decomposers | Producers |
3. A student observed four organisms: a fern, a moss, a mushroom, and a bacterium.
Which of the following statements about these organisms is correct?
(1) All four organisms reproduce by spores.
(2) Only the fern and moss are plants.
(3) The mushroom and bacterium are both fungi.
(4) All four organisms can make their own food.
4. Which of the following characteristics is shared by both birds and mammals?
(1) They have feathers.
(2) They lay eggs.
(3) They are warm-blooded.
(4) They have scales.
5. The diagram below shows a cell.
<image_placeholder> id: Q5-fig1 type: diagram linked_question: Q5 description: A typical plant cell with cell wall, cell membrane, cytoplasm, nucleus, chloroplasts, and large vacuole labelled. labels: Cell wall, Cell membrane, Cytoplasm, Nucleus, Chloroplast, Vacuole values: None must_show: All organelles clearly labelled; cell wall distinct from cell membrane; chloroplasts visible in cytoplasm; large central vacuole </image_placeholder>
Based on the diagram, which of the following statements is correct?
(1) This is an animal cell because it has a nucleus.
(2) This is a plant cell because it has a cell wall and chloroplasts.
(3) This is a bacterial cell because it has a cell membrane.
(4) This is a fungal cell because it has a vacuole.
6. Which of the following organisms is classified as a microorganism?
(1) Ant
(2) Moss
(3) Yeast
(4) Fern
7. Study the flowchart below.
<image_placeholder> id: Q7-fig1 type: flowchart linked_question: Q7 description: A classification flowchart for living things with decision diamonds and organism endpoints. labels: Start, "Does it make its own food?", "Does it have seeds?", "Does it reproduce by spores?", "Flowering plant", "Non-flowering plant (fern/moss)", "Fungi (mushroom/mould/yeast)", "Bacteria" values: None must_show: Clear decision diamonds with yes/no branches; four endpoints for the four groups; logical flow from top to bottom </image_placeholder>
Which organism is correctly placed at the endpoint "Fungi"?
(1) Fern
(2) Mushroom
(3) Balsam plant
(4) Bacterium
8. Which of the following is a characteristic of all living things?
(1) They can move from place to place.
(2) They need air, food, and water.
(3) They reproduce by laying eggs.
(4) They have a backbone.
9. The table below shows the characteristics of four organisms, P, Q, R, and S. A tick (✓) means the organism has the characteristic.
| Characteristic | P | Q | R | S |
|---|---|---|---|---|
| Has cell wall | ✓ | ✓ | ✗ | ✗ |
| Has chloroplasts | ✓ | ✗ | ✗ | ✗ |
| Reproduces by spores | ✗ | ✓ | ✓ | ✗ |
Which organism is most likely a mushroom?
(1) P
(2) Q
(3) R
(4) S
10. Which of the following groups of animals are all vertebrates?
(1) Earthworm, snail, beetle
(2) Frog, lizard, eagle
(3) Jellyfish, starfish, octopus
(4) Spider, crab, prawn
11. A student found an organism growing on a piece of damp bread. It is green and fuzzy.
Which group does this organism most likely belong to?
(1) Bacteria
(2) Fungi
(3) Flowering plants
(4) Non-flowering plants
12. Which of the following statements about bacteria is correct?
(1) All bacteria are harmful.
(2) Bacteria are larger than animal cells.
(3) Bacteria reproduce by binary fission.
(4) Bacteria have a nucleus.
13. The diagram below shows a flowering plant.
<image_placeholder> id: Q13-fig1 type: diagram linked_question: Q13 description: A flowering plant with roots, stem, leaves, flowers, fruits, and seeds labelled. labels: Roots, Stem, Leaves, Flower, Fruit, Seeds values: None must_show: All six parts clearly labelled; flower shows petals, stamen, pistil; fruit contains seeds </image_placeholder>
Which part of the plant produces seeds?
(1) Roots
(2) Stem
(3) Flower
(4) Leaves
14. Which of the following is NOT a characteristic of fungi?
(1) They reproduce by spores.
(2) They cannot make their own food.
(3) They have chlorophyll.
(4) They feed on dead or decaying matter.
15. Study the classification chart below.
<image_placeholder> id: Q15-fig1 type: chart linked_question: Q15 description: A classification chart showing Living Things branching into Plants and Animals; Plants branch into Flowering and Non-flowering; Animals branch into Vertebrates and Invertebrates; Vertebrates branch into 5 classes; Invertebrates branch into major groups. labels: Living Things, Plants, Animals, Flowering Plants, Non-flowering Plants, Vertebrates, Invertebrates, Mammals, Birds, Reptiles, Amphibians, Fish, Insects, Arachnids, Molluscs, Worms values: None must_show: Clear hierarchical branching; all major groups at Primary 5 level included; correct classification relationships </image_placeholder>
Which of the following organisms is classified under "Non-flowering Plants"?
(1) Mango tree
(2) Bird's nest fern
(3) Mushroom
(4) Yeast
16. Which of the following organisms carries out photosynthesis?
(1) Mushroom
(2) Yeast
(3) Fern
(4) Bacterium
17. The diagram below shows an animal cell and a plant cell side by side.
<image_placeholder> id: Q17-fig1 type: diagram linked_question: Q17 description: Two cells side by side: left is animal cell (no cell wall, no chloroplasts, small vacuoles), right is plant cell (cell wall, chloroplasts, large vacuole). Both have nucleus, cytoplasm, cell membrane. labels: Animal Cell, Plant Cell, Nucleus, Cytoplasm, Cell membrane, Cell wall, Chloroplast, Vacuole values: None must_show: Clear visual distinction between animal and plant cell; all organelles labelled; cell wall only on plant cell; chloroplasts only on plant cell; vacuole size difference obvious </image_placeholder>
Which structure is present in the plant cell but absent in the animal cell?
(1) Nucleus
(2) Cytoplasm
(3) Cell wall
(4) Cell membrane
18. Which of the following animals is an invertebrate?
(1) Guppy
(2) Gecko
(3) Grasshopper
(4) Sparrow
19. A student observed an organism with the following characteristics:
- It has a cell wall made of cellulose.
- It has chloroplasts.
- It reproduces by spores.
- It does not produce flowers or seeds.
Which group does this organism belong to?
(1) Flowering plants
(2) Non-flowering plants (ferns/mosses)
(3) Fungi
(4) Bacteria
20. Which of the following statements about microorganisms is correct?
(1) All microorganisms are harmful to humans.
(2) Microorganisms can only be seen with a microscope.
(3) Yeast is a type of bacteria.
(4) Mould is a type of flowering plant.
21. The diagram below shows the life cycle of a flowering plant.
<image_placeholder> id: Q21-fig1 type: diagram linked_question: Q21 description: Life cycle of flowering plant: Seed → Germination → Seedling → Adult plant → Flower → Pollination → Fertilisation → Fruit/Seed → back to Seed labels: Seed, Germination, Seedling, Adult plant, Flower, Pollination, Fertilisation, Fruit, Seed values: None must_show: Circular flow with arrows; all stages labelled; pollination and fertilisation as distinct steps; fruit formation shown </image_placeholder>
Which process occurs immediately after pollination?
(1) Germination
(2) Fertilisation
(3) Seed dispersal
(4) Flowering
22. Which of the following animals undergoes complete metamorphosis?
(1) Grasshopper
(2) Cockroach
(3) Butterfly
(4) Chicken
23. Study the table below.
| Organism | Body covering | Breathing method | Reproduction |
|---|---|---|---|
| W | Feathers | Lungs | Lays eggs |
| X | Scales | Gills | Lays eggs |
| Y | Hair | Lungs | Gives birth |
| Z | Moist skin | Lungs and skin | Lays eggs in water |
Which organism is a mammal?
(1) W
(2) X
(3) Y
(4) Z
24. Which of the following is a function of the cell wall in a plant cell?
(1) Controls the movement of substances in and out of the cell.
(2) Contains genetic information.
(3) Gives the cell a fixed shape and provides support.
(4) Traps light energy for photosynthesis.
25. The diagram below shows a food chain.
<image_placeholder> id: Q25-fig1 type: diagram linked_question: Q25 description: Simple food chain: Grass → Grasshopper → Frog → Snake → Eagle. Arrows point from food to consumer. labels: Grass (Producer), Grasshopper (Primary consumer), Frog (Secondary consumer), Snake (Tertiary consumer), Eagle (Quaternary consumer) values: None must_show: Arrows pointing in correct direction (food → consumer); trophic levels labelled; at least 4 organisms </image_placeholder>
Which organism in the food chain is a producer?
(1) Grasshopper
(2) Frog
(3) Grass
(4) Snake
26. Which of the following groups contains only non-flowering plants?
(1) Fern, moss, mushroom
(2) Fern, moss, algae
(3) Moss, mushroom, yeast
(4) Algae, mushroom, mould
27. A student wants to classify a newly discovered organism. She observes that it:
- Is made of many cells
- Has a nucleus in each cell
- Cannot make its own food
- Reproduces by spores
Which kingdom does this organism most likely belong to?
(1) Plantae
(2) Animalia
(3) Fungi
(4) Bacteria
28. Which of the following statements about the classification of living things is correct?
(1) All plants are flowering plants.
(2) All animals with backbones are mammals.
(3) Fungi and bacteria are both microorganisms.
(4) Insects are vertebrates.
SECTION B: Open-Ended Questions (44 marks)
Questions 29 to 40 carry the marks shown. Write your answers in the spaces provided.
Topic: Diversity (Living and Non-Living Things)
29. The diagram below shows two cells, A and B.
<image_placeholder> id: Q29-fig1 type: diagram linked_question: Q29 description: Two cells side by side. Cell A: Plant cell with cell wall, cell membrane, cytoplasm, nucleus, chloroplasts, large vacuole. Cell B: Animal cell with cell membrane, cytoplasm, nucleus, small vacuoles. No cell wall, no chloroplasts. labels: Cell A, Cell B, Cell wall, Cell membrane, Cytoplasm, Nucleus, Chloroplast, Vacuole values: None must_show: Clear labels on both cells; distinct differences visible (cell wall, chloroplasts, vacuole size); all common organelles labelled on both </image_placeholder>
(a) Identify Cell A and Cell B.
Cell A: _________________________ [1]
Cell B: _________________________ [1]
(b) State two differences between Cell A and Cell B.
Difference 1: ________________________________________________________ [1]
Difference 2: ________________________________________________________ [1]
(c) Name the part in Cell A that traps light energy for photosynthesis.
___________________________________________________________________ [1]
30. Study the classification table below.
| Group 1 | Group 2 | Group 3 |
|---|---|---|
| Mango tree | Bird's nest fern | Mushroom |
| Hibiscus plant | Moss | Yeast |
| Balsam plant | Algae | Mould |
(a) Give a suitable heading for each group.
Group 1: ___________________________________________________________ [1]
Group 2: ___________________________________________________________ [1]
Group 3: ___________________________________________________________ [1]
(b) State one similarity between Group 1 and Group 2.
___________________________________________________________________ [1]
(c) State one difference between Group 2 and Group 3 in terms of how they obtain food.
___________________________________________________________________ [1]
(d) The mushroom, yeast, and mould are classified as fungi. State one characteristic of fungi.
___________________________________________________________________ [1]
31. The flowchart below shows the classification of some animals.
<image_placeholder> id: Q31-fig1 type: flowchart linked_question: Q31 description: Classification flowchart for animals. Start → "Does it have a backbone?" → Yes → Vertebrates → "Does it have feathers?" → Yes → Bird; No → "Does it have hair/fur?" → Yes → Mammal; No → "Does it have scales and breathe with gills?" → Yes → Fish; No → "Does it have moist skin and lay eggs in water?" → Yes → Amphibian; No → Reptile. No (from backbone) → Invertebrates → "Does it have 6 legs and 3 body parts?" → Yes → Insect; No → "Does it have 8 legs and 2 body parts?" → Yes → Arachnid; No → Other invertebrates. labels: All decision questions and endpoints as described values: None must_show: Complete flowchart with all branches; clear yes/no labels; all 5 vertebrate classes and major invertebrate groups </image_placeholder>
(a) Animal X has a backbone, has feathers, and lays eggs. Which group does Animal X belong to?
___________________________________________________________________ [1]
(b) Animal Y has a backbone, has hair, and gives birth to live young. Which group does Animal Y belong to?
___________________________________________________________________ [1]
(c) Animal Z has no backbone, has 8 legs, and 2 body parts. Which group does Animal Z belong to?
___________________________________________________________________ [1]
(d) State one difference between an insect and an arachnid.
___________________________________________________________________ [1]
32. The diagram below shows a mushroom growing on a rotting log.
<image_placeholder> id: Q32-fig1 type: diagram linked_question: Q32 description: Mushroom on a rotting log with visible cap, gills, stalk, and mycelium growing into the log. Log shows decomposition. labels: Cap, Gills, Stalk, Mycelium, Rotting log values: None must_show: All parts labelled; mycelium visible penetrating log; gills under cap visible; decomposition context clear </image_placeholder>
(a) The mushroom is a fungus. State two characteristics of fungi.
Characteristic 1: _____________________________________________________ [1]
Characteristic 2: _____________________________________________________ [1]
(b) The mushroom grows on a rotting log. What is the role of the mushroom in the environment?
___________________________________________________________________ [1]
(c) The gills of the mushroom produce spores. Explain how spores help the mushroom reproduce.
___________________________________________________________________ [1]
___________________________________________________________________ [1]
33. Study the table below which shows the characteristics of four organisms, A, B, C, and D.
| Characteristic | A | B | C | D |
|---|---|---|---|---|
| Makes its own food | Yes | Yes | No | No |
| Reproduces by seeds | Yes | No | No | No |
| Reproduces by spores | No | Yes | Yes | No |
| Has cell wall | Yes | Yes | Yes | No |
(a) Which organism (A, B, C, or D) is most likely a flowering plant?
___________________________________________________________________ [1]
(b) Which organism (A, B, C, or D) is most likely a fern?
___________________________________________________________________ [1]
(c) Which organism (A, B, C, or D) is most likely a mushroom?
___________________________________________________________________ [1]
(d) Which organism (A, B, C, or D) is most likely an animal?
___________________________________________________________________ [1]
(e) Explain your answer for (d).
___________________________________________________________________ [1]
___________________________________________________________________ [1]
34. The diagram below shows the life cycle of a mosquito.
<image_placeholder> id: Q34-fig1 type: diagram linked_question: Q34 description: Mosquito life cycle: Egg → Larva (wiggler) → Pupa (tumbler) → Adult mosquito. Arrows show progression. Water environment shown for egg, larva, pupa stages. labels: Egg, Larva, Pupa, Adult, Water values: None must_show: Four distinct stages; aquatic environment for first three stages; complete metamorphosis shown; arrows in correct direction </image_placeholder>
(a) Name the stage that comes after the larva stage.
___________________________________________________________________ [1]
(b) The mosquito undergoes complete metamorphosis. Explain what this means.
___________________________________________________________________ [1]
___________________________________________________________________ [1]
(c) State one difference between the larva and the adult mosquito.
___________________________________________________________________ [1]
(d) Mosquitoes lay their eggs in stagnant water. Suggest one way to prevent mosquitoes from breeding.
___________________________________________________________________ [1]
35. The diagram below shows a plant cell.
<image_placeholder> id: Q35-fig1 type: diagram linked_question: Q35 description: Plant cell with all organelles labelled: Cell wall, Cell membrane, Cytoplasm, Nucleus, Chloroplast, Vacuole, Mitochondria. labels: All organelles listed values: None must_show: All 7 organelles clearly labelled and positioned correctly; mitochondria included; large central vacuole; chloroplasts distributed in cytoplasm </image_placeholder>
(a) Part X is the chloroplast. State the function of the chloroplast.
___________________________________________________________________ [1]
(b) Part Y is the nucleus. State the function of the nucleus.
___________________________________________________________________ [1]
(c) Part Z is the cell wall. State the function of the cell wall.
___________________________________________________________________ [1]
(d) Name one organelle found in a plant cell but not in an animal cell, other than the chloroplast and cell wall.
___________________________________________________________________ [1]
36. Study the food web below.
<image_placeholder> id: Q36-fig1 type: diagram linked_question: Q36 description: Food web: Grass and Oak tree (producers) → Grasshopper and Caterpillar (primary consumers) → Frog and Bird (secondary consumers) → Snake and Hawk (tertiary consumers). Decomposers (bacteria, fungi) shown breaking down all dead organisms. labels: All organisms labelled with trophic levels; arrows from food to consumer; decomposers connected to all values: None must_show: At least 2 producers, 2 primary consumers, 2 secondary consumers, 2 tertiary consumers; decomposers shown; arrows correct direction; clear trophic levels </image_placeholder>
(a) Name one producer in the food web.
___________________________________________________________________ [1]
(b) Name one primary consumer in the food web.
___________________________________________________________________ [1]
(c) If all the frogs are removed from the food web, what will happen to the population of grasshoppers? Explain your answer.
___________________________________________________________________ [1]
___________________________________________________________________ [1]
(d) State the role of decomposers in the food web.
___________________________________________________________________ [1]
37. The table below shows the characteristics of five vertebrates.
| Animal | Body covering | Breathing method | Reproduction | Body temperature |
|---|---|---|---|---|
| P | Feathers | Lungs | Lays eggs | Constant |
| Q | Scales | Gills | Lays eggs | Varies |
| R | Hair | Lungs | Gives birth | Constant |
| S | Moist skin | Lungs and skin | Lays eggs in water | Varies |
| T | Dry scales | Lungs | Lays eggs | Varies |
(a) Which animal (P, Q, R, S, or T) is a bird?
___________________________________________________________________ [1]
(b) Which animal (P, Q, R, S, or T) is a mammal?
___________________________________________________________________ [1]
(c) Which animal (P, Q, R, S, or T) is a fish?
___________________________________________________________________ [1]
(d) Which animal (P, Q, R, S, or T) is an amphibian?
___________________________________________________________________ [1]
(e) Which animal (P, Q, R, S, or T) is a reptile?
___________________________________________________________________ [1]
38. A student observed three organisms: a fern, a mushroom, and a balsam plant.
(a) Classify each organism into the correct group: Flowering plant, Non-flowering plant, or Fungi.
Fern: _____________________________________________________________ [1]
Mushroom: _________________________________________________________ [1]
Balsam plant: _______________________________________________________ [1]
(b) State one similarity between the fern and the balsam plant.
___________________________________________________________________ [1]
(c) State one difference between the mushroom and the balsam plant in terms of nutrition.
___________________________________________________________________ [1]
(d) The fern reproduces by spores. The balsam plant reproduces by seeds. State one advantage of reproducing by seeds compared to spores.
___________________________________________________________________ [1]
39. The diagram below shows a bacterium.
<image_placeholder> id: Q39-fig1 type: diagram linked_question: Q39 description: Bacterial cell showing: Cell wall, Cell membrane, Cytoplasm, Genetic material (circular DNA, no nucleus), Flagellum, Plasmid. No nucleus, no membrane-bound organelles. labels: Cell wall, Cell membrane, Cytoplasm, Genetic material (DNA), Flagellum, Plasmid values: None must_show: No nucleus visible; circular DNA in cytoplasm; flagellum for movement; plasmid shown; simple structure compared to plant/animal cells </image_placeholder>
(a) State two differences between a bacterial cell and a plant cell.
Difference 1: ________________________________________________________ [1]
Difference 2: ________________________________________________________ [1]
(b) Some bacteria are useful to humans. Give one example of how bacteria are useful.
___________________________________________________________________ [1]
(c) Some bacteria are harmful. Give one example of how bacteria can be harmful.
___________________________________________________________________ [1]
40. The diagram below shows the life cycle of a flowering plant.
<image_placeholder> id: Q40-fig1 type: diagram linked_question: Q40 description: Complete life cycle: Seed → Germination (root, shoot) → Seedling → Adult plant → Flower (stamen, pistil) → Pollination → Fertilisation → Fruit development → Seed dispersal → back to Seed. Wind/insect pollination shown. labels: All stages; flower parts (stamen, pistil); pollination agents; fruit; seed dispersal methods values: None must_show: All stages in correct order; flower structure detail; pollination and fertilisation distinct; seed dispersal methods shown; cyclic nature clear </image_placeholder>
(a) Name the process where pollen grains are transferred from the anther to the stigma.
___________________________________________________________________ [1]
(b) After pollination, the male reproductive cell fuses with the female reproductive cell. Name this process.
___________________________________________________________________ [1]
(c) The ovary develops into a fruit after fertilisation. What does the ovule develop into?
___________________________________________________________________ [1]
(d) State one way seeds can be dispersed.
___________________________________________________________________ [1]
(e) Explain why seed dispersal is important for plants.
___________________________________________________________________ [1]
___________________________________________________________________ [1]
END OF PAPER
Total Marks: 100
Answers
TuitionGoWhere Practice Paper - Science Primary 5 (Answer Key)
Subject: Science
Level: Primary 5
Paper: Practice Paper 4 (Version 4 of 5)
Total Marks: 100
SECTION A: Multiple-Choice Questions (56 marks)
| Qn | Answer | Explanation |
|---|---|---|
| 1 | (2) | Bacteria, fern, and earthworm are all living things. Clouds and rocks are non-living; water and air are non-living; sand is non-living. |
| 2 | (1) | Group X contains mushroom, yeast, mould — all fungi. Group Y contains rose, balsam, hibiscus — all flowering plants. |
| 3 | (2) | Fern and moss are plants (non-flowering). Mushroom is a fungus. Bacterium is a bacterium (prokaryote). Only statement (2) is correct. |
| 4 | (3) | Both birds and mammals are warm-blooded (endothermic). Feathers are unique to birds; only some mammals lay eggs (monotremes); scales are on reptiles and birds' legs. |
| 5 | (2) | The cell has a cell wall and chloroplasts, which are features of plant cells. Animal cells lack both. Bacterial cells lack a nucleus and membrane-bound organelles. Fungal cells have cell walls (chitin) but no chloroplasts. |
| 6 | (3) | Yeast is a single-celled fungus, classified as a microorganism. Ants, mosses, and ferns are macroscopic. |
| 7 | (2) | Mushroom is a fungus. Fern is a non-flowering plant. Balsam is a flowering plant. Bacterium is a prokaryote. |
| 8 | (2) | All living things need air, food, and water. Not all move (plants), reproduce by eggs (many methods), or have backbones (invertebrates). |
| 9 | (2) | Mushroom (fungus): has cell wall (chitin), no chloroplasts, reproduces by spores → matches Q. P = plant (has chloroplasts); R = bacterium (no cell wall? Actually bacteria have cell walls but not cellulose; but no chloroplasts, reproduces by binary fission not spores); S = animal (no cell wall, no chloroplasts, no spores). |
| 10 | (2) | Frog (amphibian), lizard (reptile), eagle (bird) — all vertebrates. Others are invertebrates. |
| 11 | (2) | Green fuzzy growth on bread is mould, a fungus. |
| 12 | (3) | Bacteria reproduce by binary fission (asexual). Not all are harmful; they are smaller than animal cells; they lack a nucleus (prokaryotes). |
| 13 | (3) | Flowers contain reproductive organs; after pollination and fertilisation, the ovary develops into fruit containing seeds. |
| 14 | (3) | Fungi do NOT have chlorophyll (they are heterotrophs). They reproduce by spores, cannot make food, and are decomposers. |
| 15 | (2) | Bird's nest fern is a non-flowering plant (pteridophyte). Mango is flowering; mushroom and yeast are fungi. |
| 16 | (3) | Ferns are plants with chloroplasts and carry out photosynthesis. Mushrooms, yeast, and bacteria do not photosynthesise. |
| 17 | (3) | Cell wall is present in plant cells, absent in animal cells. Nucleus, cytoplasm, and cell membrane are in both. |
| 18 | (3) | Grasshopper is an insect (invertebrate). Guppy (fish), gecko (reptile), sparrow (bird) are vertebrates. |
| 19 | (2) | Cellulose cell wall + chloroplasts = plant. Reproduces by spores, no flowers/seeds = non-flowering plant (fern/moss). Fungi have chitin cell walls, no chloroplasts. Bacteria lack nucleus and membrane-bound organelles. |
| 20 | (2) | Microorganisms are too small to be seen with naked eye; require microscope. Not all are harmful; yeast is fungus not bacteria; mould is fungus not plant. |
| 21 | (2) | After pollination (pollen on stigma), the pollen tube grows and fertilisation occurs (fusion of male and female gametes). |
| 22 | (3) | Butterfly undergoes complete metamorphosis (egg, larva, pupa, adult). Grasshopper and cockroach have incomplete metamorphosis. Chicken has no metamorphosis. |
| 23 | (3) | Mammals have hair/fur, breathe with lungs, give birth to live young (mostly), produce milk. Y matches. W = bird; X = fish; Z = amphibian. |
| 24 | (3) | Cell wall (cellulose) gives fixed shape and support. Cell membrane controls movement; nucleus contains genetic info; chloroplasts trap light. |
| 25 | (3) | Grass is the producer (photosynthesises). Others are consumers at various levels. |
| 26 | (2) | Fern, moss, algae are non-flowering plants. Mushroom, yeast, mould are fungi. |
| 27 | (3) | Multicellular, nucleated, heterotrophic, spore reproduction = Fungi. Plantae are autotrophic; Animalia ingest food; Bacteria are prokaryotic. |
| 28 | (3) | Fungi (yeast, mould) and bacteria are both microorganisms. Not all plants flower; not all vertebrates are mammals; insects are invertebrates. |
SECTION B: Open-Ended Questions (44 marks)
Question 29 [5 marks]
(a) [2 marks]
Cell A: Plant cell [1]
Cell B: Animal cell [1]
(b) [2 marks]
Difference 1: Cell A has a cell wall; Cell B does not. [1]
Difference 2: Cell A has chloroplasts; Cell B does not. [1]
Acceptable alternatives: Cell A has a large central vacuole; Cell B has small vacuoles. Cell A has a fixed shape; Cell B has an irregular shape.
(c) [1 mark]
Chloroplast [1]
Teaching note: Chloroplasts contain chlorophyll which traps light energy for photosynthesis.
Question 30 [5 marks]
(a) [3 marks]
Group 1: Flowering plants [1]
Group 2: Non-flowering plants [1]
Group 3: Fungi [1]
Acceptable: "Plants that reproduce by seeds", "Plants that reproduce by spores", "Moulds and yeasts"
(b) [1 mark]
Both Group 1 and Group 2 are plants / make their own food (photosynthesis) / have cell walls made of cellulose / have chloroplasts. [1]
(c) [1 mark]
Group 2 (non-flowering plants) make their own food through photosynthesis; Group 3 (fungi) cannot make their own food and feed on dead/decaying matter (decomposers). [1]
(d) [1 mark]
Fungi reproduce by spores / do not have chlorophyll / are decomposers / have cell walls made of chitin. [1]
Question 31 [4 marks]
(a) [1 mark]
Bird [1]
Reasoning: Backbone → Vertebrate → Feathers → Bird
(b) [1 mark]
Mammal [1]
Reasoning: Backbone → Vertebrate → Hair/fur → Mammal
(c) [1 mark]
Arachnid [1]
Reasoning: No backbone → Invertebrate → 8 legs, 2 body parts → Arachnid
(d) [1 mark]
Insects have 6 legs and 3 body parts (head, thorax, abdomen); arachnids have 8 legs and 2 body parts (cephalothorax, abdomen). [1]
Acceptable: Insects have antennae; arachnids do not. Insects may have wings; arachnids do not.
Question 32 [5 marks]
(a) [2 marks]
Characteristic 1: Reproduce by spores [1]
Characteristic 2: Cannot make their own food (heterotrophic) / Feed on dead or decaying matter (decomposers) / Have cell walls made of chitin [1]
(b) [1 mark]
The mushroom acts as a decomposer, breaking down dead organic matter (the rotting log) and returning nutrients to the environment. [1]
(c) [2 marks]
Spores are light and small, allowing them to be dispersed by wind/water/animals to new locations. [1]
When spores land on a suitable damp surface with food, they germinate and grow into new mushrooms. [1]
Teaching note: This is similar to seed dispersal in plants but spores are microscopic and produced in huge numbers.
Question 33 [5 marks]
(a) [1 mark]
A [1]
Reasoning: Makes food (Yes) + Reproduces by seeds (Yes) = Flowering plant
(b) [1 mark]
B [1]
Reasoning: Makes food (Yes) + Reproduces by spores (Yes) = Fern (non-flowering plant)
(c) [1 mark]
C [1]
Reasoning: Does not make food (No) + Reproduces by spores (Yes) + Has cell wall (Yes) = Mushroom (fungus)
(d) [1 mark]
D [1]
Reasoning: Does not make food (No) + No cell wall (No) = Animal
(e) [2 marks]
Organism D does not make its own food (heterotrophic) and does not have a cell wall, which
<stage5_exam_answers_md>
TuitionGoWhere Practice Paper - Science Primary 5 (Answer Key)
Subject: Science
Level: Primary 5
Paper: Practice Paper 4 (Version 4 of 5)
Total Marks: 100
SECTION A: Multiple-Choice Questions (56 marks)
| Question | Answer | Explanation |
|---|---|---|
| 1 | (2) | Bacteria, fern, and earthworm are all living things. Cloud, rock, water, air, sand are non-living. |
| 2 | (1) | Group X: Mushroom, Yeast, Mould are Fungi. Group Y: Rose, Balsam, Hibiscus are Flowering plants. |
| 3 | (2) | Fern and moss are plants. Mushroom is fungi. Bacterium is bacteria (monera). Only plants make their own food. |
| 4 | (3) | Both birds and mammals are warm-blooded. Only birds have feathers. Most mammals don't lay eggs. Scales are on reptiles/fish. |
| 5 | (2) | Plant cells have cell wall and chloroplasts. Animal cells lack these. Bacterial cells lack nucleus. Fungal cells have cell wall (chitin) but no chloroplasts. |
| 6 | (3) | Yeast is a microscopic fungus (microorganism). Ant, moss, fern are macroscopic. |
| 7 | (2) | Mushroom is a fungus. Fern is non-flowering plant. Balsam is flowering plant. Bacterium is bacteria. |
| 8 | (2) | All living things need air, food, and water. Not all move (plants), lay eggs (mammals), or have backbone (invertebrates). |
| 9 | (2) | Mushroom (fungi): has cell wall (chitin), no chloroplasts, reproduces by spores → matches Q. |
| 10 | (2) | Frog (amphibian), lizard (reptile), eagle (bird) are all vertebrates. Others are invertebrates. |
| 11 | (2) | Green fuzzy growth on bread is mould (fungi). |
| 12 | (3) | Bacteria reproduce by binary fission. Not all harmful. Bacteria are smaller than animal cells. Bacteria lack nucleus (prokaryotes). |
| 13 | (3) | Flowers contain reproductive organs; after pollination & fertilisation, ovules become seeds. |
| 14 | (3) | Fungi do NOT have chlorophyll (cannot photosynthesise). They reproduce by spores, are heterotrophic, decomposers. |
| 15 | (2) | Bird's nest fern is a non-flowering plant (fern). Mango is flowering. Mushroom/yeast are fungi. |
| 16 | (3) | Fern is a plant with chloroplasts → photosynthesises. Mushroom, yeast, bacterium cannot. |
| 17 | (3) | Cell wall is present in plant cells, absent in animal cells. Both have nucleus, cytoplasm, cell membrane. |
| 18 | (3) | Grasshopper is an insect (invertebrate). Guppy (fish), gecko (reptile), sparrow (bird) are vertebrates. |
| 19 | (2) | Cellulose cell wall + chloroplasts = plant. Reproduces by spores, no flowers/seeds = non-flowering plant (fern/moss). Fungi have chitin cell walls, no chloroplasts. |
| 20 | (2) | Microorganisms are microscopic (need microscope). Not all harmful. Yeast is fungus. Mould is fungus. |
| 21 | (2) | Pollination → Fertilisation → Fruit/Seed formation → Seed dispersal → Germination. |
| 22 | (3) | Butterfly undergoes complete metamorphosis (egg, larva, pupa, adult). Grasshopper/cockroach: incomplete. Chicken: no metamorphosis. |
| 23 | (3) | Mammals have hair/fur, breathe with lungs, give birth to live young (mostly). W=Bird, X=Fish, Z=Amphibian. |
| 24 | (3) | Cell wall (cellulose) gives fixed shape & support. Cell membrane controls movement. Nucleus has genetic info. Chloroplasts trap light. |
| 25 | (3) | Grass is the producer (photosynthesises). Others are consumers. |
| 26 | (2) | Fern, moss, algae are non-flowering plants. Mushroom, yeast, mould are fungi. |
| 27 | (3) | Multicellular, eukaryotic (nucleus), heterotrophic, reproduces by spores = Fungi. Plants are autotrophic. Animals don't reproduce by spores. Bacteria are prokaryotic (no nucleus). |
| 28 | (3) | Fungi (yeast, mould) and bacteria are both microorganisms. Not all plants flower. Vertebrates include 5 classes. Insects are invertebrates. |
SECTION B: Open-Ended Questions (44 marks)
Question 29 [5 marks]
(a)
Cell A: Plant cell [1]
Cell B: Animal cell [1]
(b)
Difference 1: Cell A has a cell wall but Cell B does not. [1]
Difference 2: Cell A has chloroplasts but Cell B does not. [1]
Acceptable alternatives: Cell A has a large central vacuole while Cell B has small vacuoles / Cell A has a fixed shape due to cell wall while Cell B has an irregular shape.
(c)
Chloroplasts [1]
Question 30 [5 marks]
(a)
Group 1: Flowering plants [1]
Group 2: Non-flowering plants [1]
Group 3: Fungi [1]
(b)
Both Group 1 and Group 2 are plants that can make their own food through photosynthesis / have chloroplasts / contain chlorophyll. [1]
(c)
Group 2 (non-flowering plants) can make their own food through photosynthesis, while Group 3 (fungi) cannot make their own food and feed on dead or decaying matter (decomposers). [1]
(d)
Fungi reproduce by spores. / Fungi do not have chlorophyll. / Fungi feed on dead or decaying organic matter (decomposers). / Fungi have cell walls made of chitin. [1] (Any one)
Question 31 [4 marks]
(a)
Bird [1]
(b)
Mammal [1]
(c)
Arachnid [1]
(d)
Insects have 6 legs and 3 body parts (head, thorax, abdomen) while arachnids have 8 legs and 2 body parts (cephalothorax, abdomen). [1]
Acceptable alternatives: Insects have antennae, arachnids do not / Insects may have wings, arachnids do not.
Question 32 [4 marks]
(a)
Characteristic 1: Fungi reproduce by spores. [1]
Characteristic 2: Fungi cannot make their own food / are decomposers / feed on dead or decaying matter. [1]
Acceptable: Fungi do not have chlorophyll / Fungi have cell walls made of chitin.
(b)
The mushroom acts as a decomposer, breaking down the dead organic matter (rotting log) and returning nutrients to the environment. [1]
(c)
The gills of the mushroom produce spores for reproduction. [1]
(d)
Wind / Air currents [1]
Acceptable: Water, animals (less common for mushroom spores but possible).
Question 33 [4 marks]
(a)
W: Bird [½]
X: Fish [½]
Y: Mammal [½]
Z: Amphibian [½]
(b)
Animal Y (Mammal) has hair and gives birth to live young, while Animal W (Bird) has feathers and lays eggs. [1]
Acceptable: Mammals feed young with milk, birds do not / Mammals have hair, birds have feathers.
(c)
Both Animal X (Fish) and Animal Z (Amphibian) lay eggs in water. [1]
Acceptable: Both are cold-blooded / Both have gills at some stage of life (fish always, amphibian larval stage).
(d)
Reptiles have dry scaly skin and lay eggs on land, while amphibians have moist permeable skin and lay eggs in water. [1]
Question 34 [4 marks]
(a)
Process A: Pollination [1]
Process B: Fertilisation [1]
(b)
The ovules in the ovary develop into seeds. [1]
(c)
The ovary develops into the fruit. [1]
(d)
Seed dispersal reduces overcrowding and competition among the parent plant and its offspring for sunlight, water, nutrients, and space. [1]
Question 35 [4 marks]
(a)
Stage A: Egg [1]
Stage B: Larva / Caterpillar [1]
Stage C: Pupa / Chrysalis [1]
Stage D: Adult / Butterfly [1]
(b)
The larva (caterpillar) feeds actively and grows rapidly, moulting several times, while the pupa (chrysalis) does not feed and undergoes metamorphosis inside. [1]
Acceptable: Larva is worm-like with many legs, pupa is immobile and encased / Larva eats leaves, pupa does not eat.
(c)
Complete metamorphosis [1]
(d)
The young (nymph) resembles the adult but is smaller and lacks wings; it undergoes incomplete metamorphosis (egg → nymph → adult) without a pupal stage. [1]
Question 36 [4 marks]
(a)
Producer: Water lily / Algae [1]
Primary consumer: Tadpole / Water snail [1]
Secondary consumer: Small fish / Dragonfly nymph [1]
Tertiary consumer: Large fish / Kingfisher [1]
(b)
Energy is lost as heat at each trophic level (through respiration, movement, waste), so less energy is available to support higher trophic levels. [1]
(c)
The population of water snails would increase because their predator (small fish) has decreased. [1]
(d)
Decomposers (bacteria and fungi) break down dead organisms and waste, returning nutrients to the water for producers (water lily/algae) to use. [1]
Question 37 [4 marks]
(a)
The population of rabbits will increase. [1]
(b)
With fewer foxes hunting them, fewer rabbits are eaten, so the rabbit population increases. [1]
(c)
The grass population will decrease because more rabbits will feed on it. [1]
(d)
The ecosystem may become unbalanced: overgrazing by rabbits could destroy the grass, leading to soil erosion and eventually a crash in the rabbit population due to starvation. [1]
Question 38 [4 marks]
(a)
Structural adaptation: Thick fur / White fur for camouflage / Thick layer of fat / Small ears to reduce heat loss / Padded feet for insulation on ice. [1]
(Any one)
(b)
Behavioural adaptation: Huddling together for warmth / Migration / Hibernation (though polar bears don't truly hibernate, pregnant females den) / Hunting on sea ice. [1]
(Any one)
(c)
The thick fur traps a layer of air close to the skin, which acts as an insulator to reduce heat loss to the cold environment. [1]
(d)
It may not survive because its adaptations (thick fur, fat layer) are suited for cold environments and would cause overheating in a hot desert; it also lacks adaptations for water conservation and desert prey. [1]
Question 39 [4 marks]
(a)
Material X: Metal (e.g., steel, iron) [1]
Material Y: Plastic / Rubber / Wood [1]
(b)
Metal is a good conductor of heat, so it transfers heat quickly from the stove to the food for cooking. [1]
(c)
Plastic/rubber/wood is a poor conductor of heat (insulator), so the handle stays cool and prevents the user from getting burnt. [1]
(d)
Property: Strength / Durability / High melting point [1]
Reason: The pan must withstand high temperatures and physical stress during cooking without bending or melting.
Question 40 [4 marks]
(a)
The shadow is formed because the wooden block (opaque object) blocks the path of light from the torch. [1]
(b)
The shadow becomes larger. [1]
(c)
When the object is moved closer to the light source, it blocks more light rays spreading out from the source, creating a larger shadow on the screen. [1]
(d)
Move the torch further away from the wooden block / Move the screen closer to the wooden block. [1]
Acceptable: Use a smaller light source / Move the block further from the torch.
End of Answer Key