0654_2016_MJ_QP_13_Bio

1. What is not a characteristic of all living organisms?

• breathing

• excretion

• movement

• reproduction

2. The diagram shows a section through a cell from a leaf, magnified ×4000. The diameter of the nucleus in the diagram is 10 mm.

What is the true diameter of the nucleus?

• 0.0025 mm

• 0.0050 mm

• 0.0100 mm

• 0.0250 mm

3. Which statement about all enzymes is correct?

• They are used up in the reaction they catalyse.

• They speed up reactions.

• They work best above 40 °C.

• They work best at a pH of 7.0.

4. A plant is destarched and then one of its leaves is partly covered with black card as shown.

The plant is then put in the light for six hours.

The card is removed and the leaf is tested for starch using iodine solution.

Which colours are seen five minutes after iodine solution is added?

• area of leaf:

  not covered by card-blue / black, covered by card-blue / black

• area of leaf:

  not covered by card-blue / black, covered by card-yellow

• area of leaf:

  not covered by card-yellow, covered by card-blue / black

• area of leaf:

  not covered by card-yellow, covered by card-yellow

5. Where is the gall bladder situated?

• in the pancreas

• near the entrance to the urethra

• near the kidneys

• near the liver

6. The diagrams show the cross-section of three blood vessels, not drawn to the same scale.

What are these vessels?

• 1-artery, 2-capillary, 3-vein

• 1-artery, 2-vein, 3-capillary

• 1-capillary, 2-artery, 3-vein

• 1-capillary, 2-vein, 3-artery

7. The diagram shows what happens to glucose in the body.

What are processes Y and Z?

• Y-photosynthesis, Z-growth

• Y-photosynthesis, Z-respiration

• Y-respiration, Z-growth

• Y-respiration, Z-photosynthesis

8. What does not use energy released by cells?

• cell division

• diffusion

• passage of nerve impulses

• protein synthesis

9. What is an example of homeostasis?

• adding acid to food in the stomach

• breathing out water vapour from the lungs

• keeping the body temperature constant

• producing adrenaline in the adrenal glands

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

• effector

• motor neurone

• sensory neurone

• spinal cord