A-LevelBiologyTransport in mammalsFeb/Mar 2025Paper 1 Q311 Mark
What happens as a result of the blood pressure in the left ventricle becoming higher than the blood pressure in the left atrium?
AThe left atrioventricular valve closes.
BThe left atrioventricular valve opens.
CThe semilunar valve in the aorta closes.
DThe semilunar valve in the aorta opens.
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of transport in mammals within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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