0654_2018_MJ_QP_12_Biology

1.Which rows correctly match characteristics of living things with their descriptions?

• 1, 2 and 4

• 1, 3 and 4

• 1 and 3 only

• 2 and 4 only

2.Which statement about cells is correct?

• Cell membranes are found only in animal cells.

• Cell membranes are found only in plant cells.

• Cell walls are found only in animal cells.

• Cell walls are found only in plant cells.

3.Which line shows the structures in increasing size?

• chromosome → gamete → gene → nucleus

• chromosome → nucleus → gene → gamete

• gene → chromosome → gamete → nucleus

• gene → chromosome → nucleus → gamete

4.The graph shows the rate at which 10 g of starch is broken down by amylase at four temperatures.

Which is the optimum temperature?

• 10 °C

• 25 °C

• 40 °C

• 70 °C

5.Tests were carried out on a colourless liquid, with the following results.

What did the colourless liquid contain?

• protein only

• protein and reducing sugar only

• protein and starch only

• protein, reducing sugar and starch

6.Which statement is correct?

• The pulmonary artery carries deoxygenated blood away from the left ventricle.

• The pulmonary artery carries deoxygenated blood away from the right ventricle.

• The pulmonary vein carries oxygenated blood away from the left ventricle.

• The pulmonary vein carries oxygenated blood away from the right ventricle.

7.By which process does oxygen pass from the alveoli to the blood capillaries in the lungs?

• diffusion

• evaporation

• secretion

• transpiration

8.What happens when the human body temperature drops below normal?

• A

• B

• C

• D

9.Which row is true of asexual reproduction?

• A

• B

• C

• D

10.What is a function of the stigma of a flower?

• to make female gametes

• to make male gametes

• to produce nectar to attract insects

• to secrete a sugary solution to aid the germination of pollen grains