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1. Which of the following gases is produced during photosynthesis?

A Carbon dioxide

B Nitrogen

C Oxygen

D Water vapour

2. In what form is the carbohydrate made during photosynthesis stored in plants?

A Cellulose

B Glucose

C Glycogen

D Starch

3. Which of the following is an example of osmosis?

A The movement of water vapour from the lungs into the air

B The loss of water from the skin during sweating

C The take-up of water from soil into root hairs

D The storage of starch in the leaves of a plant

4. A small amount of chloroform was placed in a watch glass at the front of the laboratory. After

a few minutes all of the students could smell it because the chloroform vapour spread by

A convection currents

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B diffusion

C evaporation

D osmosis

5. In which part of the body does digestion begin?

A Mouth

B Oesophagus

C Rectum

D Stomach

6. Which of the following shows how air passes from the nose into the lungs?

A Alveolus Bronchiole Bronchus Trachea

B Bronchiole Bronchus Trachea Alveolus

C Trachea Bronchus Bronchiole Alveolus

D Bronchus Trachea Alveolus Bronchiole

7. Through which of the following parts of a plant is most water absorbed?

A Flowers

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B Leaves

C Roots

D Stem

8. Which of the following is present in a plant cell but not in an animal cell?

A Cell wall

B Cytoplasm

C Mitochondria

D Nucleus

9. Which of the following is a correct description of what happens across a selectively permeable

membrane during osmosis?

A Sugar molecules move from a region where there are many of them to one where there are

few of them

B Sugar molecules move from a region where there are few of them to where there are few ofthem

C Water molecules move from a region where there are many of them to one where there arefew of them

D Water molecules move from a region where there are few of them to one where there aremany of them

10. Which of the following groups of animals obtain oxygen through gills?

A Amphibians

B Birds

C Fish

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D Insects

11. Which is the organ of sexual reproduction in a plant?

A Flower

B Leaf

C Root

D Stem

12. A sample of soil was shaken with water in a jar and left to stand. In which order would the

different components appear starting from the bottom of the jar?

A Humus, clay, sand, gravel

B Clay, sand, gravel, humus

C Gravel, sand, clay, humus

D Sand, gravel, humus, clay

13. Which of the following are absorbed in solution from the soil by plant?

A Hydrocarbons

B Mineral salts

C Proteins

D Sugars

14. If a person suffers from anaemia they are deficient in

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A calcium

B fibre

C iron

D vitamin C

15. When iodine is added to starch it turns

A blue-black

B green

C orange-red

D yellow

16. Where in the body is the hormone insulin produced?

A Brain

B Kidney

C Pancreas

D Testes or ovaries

17. The part of the eye that is sensitive to light is called the

A cornea

B iris

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C optic nerve

D retina

18. The process in which sperm combines with an egg is called

A fertilization

B intercourse

C pollination

D reproduction

19. Which of the following statements about food chains is always true?

A Food chains only contain animals

B Food chains always start with a producer

C Food chains only contain herbivores

D Food chains must contain at least four organisms