13. (a) (i) Name the liquid part of the blood - Leaving Cert Biology - Question 13 - 2011
Question 13
13. (a) (i) Name the liquid part of the blood.
(ii) Different lifestyle factors have an effect on the health of our circulatory system. Name any two of these factors... show full transcript
Worked Solution & Example Answer:13. (a) (i) Name the liquid part of the blood - Leaving Cert Biology - Question 13 - 2011
Step 1
a) (i) Name the liquid part of the blood.
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Answer
The liquid part of the blood is called plasma.
Step 2
a) (ii) Different lifestyle factors have an effect on the health of our circulatory system. Name any two of these factors.
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Answer
Two factors that can affect the health of our circulatory system include smoking and a poor diet.
Step 3
b) (i) Name the blood vessel labelled A.
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The blood vessel labelled A is the aorta.
Step 4
b) (ii) Does A carry blood towards or away from the heart?
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A carries blood away from the heart.
Step 5
b) (iii) Name the chamber of the heart labelled C.
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The chamber of the heart labelled C is the right ventricle.
Step 6
b) (iv) Why is the wall of chamber B thicker than the wall of chamber C?
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The wall of chamber B is thicker than that of chamber C because blood from B must be pumped further and therefore requires greater pressure.
Step 7
b) (v) Name the arteries that supply the heart wall with blood.
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The arteries that supply the heart wall with blood are the coronary arteries.
Step 8
b) (vi) What is the role of valves in the heart?
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The role of valves in the heart is to prevent the backflow of blood.
Step 9
b) (vii) The lymphatic system is another series of vessels carrying fluid in the body. Give any two functions of the lymphatic system.
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Two functions of the lymphatic system are to return fluid to the bloodstream and to transport lymphocytes, which are essential for immunity.
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