The diagram represents the human blood circulatory system - Leaving Cert Biology - Question b - 2018
Question b
The diagram represents the human blood circulatory system.
(i) In your answer book, state which letter represents each of the following parts:
1. Aorta; 2. Hepatic... show full transcript
Worked Solution & Example Answer:The diagram represents the human blood circulatory system - Leaving Cert Biology - Question b - 2018
Step 1
State which letter represents each of the following parts:
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Answer
Aorta = E
Hepatic portal vein = F
Pulmonary vein = D
Vena cava = J
Step 2
State what changes occur in the blood as it passes through the lungs:
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Answer
In the lungs, oxygen is gained and carbon dioxide is lost from the blood.
Step 3
State what changes occur in the blood as it passes through the kidneys:
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Answer
In the kidneys, carbon dioxide is gained or oxygen is lost, and urea or water is lost or gained.
Step 4
Name or give the letter from the diagram of one blood vessel that is rich in oxygen.
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Answer
The blood vessel that is rich in oxygen is the pulmonary vein (D) or could also be the aorta (E).
Step 5
What is meant by a closed circulatory system?
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Answer
A closed circulatory system means that blood circulates always in vessels.
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