Figure 5 shows a diagram of the human blood system - Edexcel - GCSE Biology - Question 3 - 2023 - Paper 2
Question 3
Figure 5 shows a diagram of the human blood system.
(a) (i) Name blood vessel X.
(ii) Which row of the table shows the width of the wall and blood pressure in bloo... show full transcript
Worked Solution & Example Answer:Figure 5 shows a diagram of the human blood system - Edexcel - GCSE Biology - Question 3 - 2023 - Paper 2
Step 1
Name blood vessel X.
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Answer
Blood vessel X is the aorta, which is the main artery that carries oxygenated blood away from the heart to the rest of the body.
Step 2
Which row of the table shows the width of the wall and blood pressure in blood vessel X?
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Answer
The correct row is A: thick width of wall and low blood pressure. The aorta has a thick wall due to its muscular structure that withstands high pressure but within the circulatory system at this point, the pressure decreases.
