Question
The boxes on the left contain the names of structures in the body.
The boxes on the right contain the names of processes carried out by the body.
Draw one straight line from each structure to the process in which it is involved.
Draw six lines.
Answer/Explanation
Ans
Question
The diagram that shows the control of blood glucose concentration.
(a) (i) State one reason why the concentration of glucose in the blood increases.
………………………………………………………………………………………………………………………….
………………………………………………………………………………………………………………………[1]
(ii) State one reason why the concentration of glucose in the blood decreases.
………………………………………………………………………………………………………………………….
………………………………………………………………………………………………………………………[1]
(iii) Name two places in the body where glycogen is stored.
1 ……………………………………………………………………………………………………………………….
2 ……………………………………………………………………………………………………………………….
[2]
(b) Explain how an increase in glucose concentration is controlled in the body.
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………..[3]
(c) If the blood glucose concentration is very high there is a decrease in the water
potential of the blood. This may damage the red blood cells.
Explain how a decrease in water potential of the blood may damage red blood cells.
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………………………
……………………………………………………………………………………………………………………………..[3]
Answer/Explanation
Ans:
