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.The diagram shows a functional human enzyme at 37 °C.

Which row shows the likely shape of this enzyme at two different temperatures?

• A

• B

• C

• D

4.A sample of bile was added to some fat in a test-tube at room temperature and left for one hour.

Which will happen in the test-tube?

• The fat will have decreased surface area.

• The fat will have been digested.

• The fat will have been emulsified.

• The fat will have dissolved.

5.The cut end of a leafy stem of a plant was placed in a beaker of red-coloured water. Some time

later, a transverse section of its stem was cut.

Which part of the section would be coloured red?A

• A

• B

• C

• D

6.How does anaerobic respiration differ from aerobic respiration in muscles?A

• A

• B

• C

• D

7.Which statement about the hormone adrenaline is correct?

• Adrenaline decreases blood glucose concentration.

• Adrenaline is carried by the blood.

• Adrenaline is destroyed by the kidneys.

• Adrenaline slows down the heart rate.

8.What is secreted by the pancreas?

• glucagon

• glucose

• glycerol

• glycogen

9.The diagrams show three fruits.

• X $+$ Y $-$ Z $+$

• X $+$ Y $-$ Z $-$

• X $-$ Y $+$ Z $+$

• X $-$ Y $+$ Z $-$

10.The diagram shows a cell that is about to divide by meiosis.

Which cell could be the result of this division?

• 
• 
• 
•