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Question 27

From Biology SL Paper 1 (November 2024, TZ2)

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  1. The graph shows pressure changes during the cardiac cycle.
Graph showing pressure changes during the cardiac cycle with pressure in mmHg on the y-axis and time on the x-axis (implied). Three lines, X, Y, and Z, represent different pressure changes.
Graph showing pressure changes during the cardiac cycle with pressure in mmHg on the y-axis and time on the x-axis (implied). Three lines, X, Y, and Z, represent different pressure changes.

Which structures are represented by lines X, Y and Z?

Table with four rows (A-D) and three columns (X, Y, Z) providing different combinations of anatomical structures (left ventricle, left atrium, aorta) for lines X, Y, and Z from the cardiac cycle graph.
Table with four rows (A-D) and three columns (X, Y, Z) providing different combinations of anatomical structures (left ventricle, left atrium, aorta) for lines X, Y, and Z from the cardiac cycle graph.

Textbook topics in this question

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