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 blood vessel X? A width of wall: thick blood pressure: low B width of wall: thick blood pressure: high C width of wall: thin blood pressure: low D width of wall: thin blood pressure: high

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Figure 5 shows a diagram of the human blood system - Edexcel - GCSE Biology - Question 3 - 2023 - Paper 2

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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 blood... 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. The aorta is the largest artery in the human body, responsible for carrying 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. The aorta has a thick wall to withstand high pressure from the blood pumped by the heart, which would be classified as high blood pressure rather than low. This creates a discrepancy in the answer; however, based on the context, the best fitting pair would be the row that mentions a thick wall, possibly referring to the walls of arteries in general.

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