0654_2019_MJ_QP_11_Bio

1. What is correct for all living organisms?

• They are sensitive to changes in their environment.

• They excrete solid waste from their bodies.

• They feed on other living organisms.

• They grow larger by increasing their cell number.

2. Which row correctly describes the diffusion of molecules from P to Q?

• P - higher concentration, Q - lower concentration, movement - down a concentration gradient

• P - higher concentration, Q - lower concentration, movement - up a concentration gradient

• P - lower concentration, Q - higher concentration, movement - down a concentration gradient

• P - lower concentration, Q - higher concentration, movement - up a concentration gradient

3. Which chemical element is found in proteins, but not in carbohydrates or fats?

• carbon

• hydrogen

• oxygen

• nitrogen

4. The graph shows the activity of an enzyme at different temperatures.

What is the optimum temperature for this enzyme?

• 20°C

• 40°C

• 60°C

• 80°C

5. The diagram shows a cross-section through a plant leaf.

Which row identifies P and Q?

• P - cuticle, Q - palisade mesophyll

• P - cuticle, Q - spongy mesophyll

• P - epidermis, Q - palisade mesophyll

• P - epidermis, Q - spongy mesophyll

6. Where does most absorption of digested food take place?

• the large intestine

• the liver

• the small intestine

• the stomach

7. Which component is needed for blood to clot?

• hormones

• platelets

• red blood cells

• white blood cells

8. Which substances are used and produced in aerobic respiration?

• carbon dioxide - produced, oxygen - used, glucose - produced, water - used

• carbon dioxide - produced, oxygen - used, glucose - used, water - produced

• carbon dioxide - used, oxygen - produced, glucose - produced, water - used

• carbon dioxide - used, oxygen - produced, glucose - used, water - produced

9. In a reflex arc, which structure carries nerve impulses towards the central nervous system?

• effector

• motor neurone

• sensory neurone

• spinal cord

10. The diagram shows a section through an insect-pollinated flower.

When pollination occurs, where must the pollen grains reach?

• A

• B

• C

• D