A-LevelBiologyTransport in mammalsFeb/Mar 2018Paper 1 Q301 Mark

Which statement about the blood flow in the cardiac cycle is correct?

Q: What topic does this question test?

This question tests Transport in mammals in A-Level Biology (syllabus code 9700). It is worth 1 mark.

ABlood flows into the aorta through the semilunar valve due to contraction of the right ventricle.

BBlood flows into the left atrium through the pulmonary artery when the wall of the left atrium relaxes.

CBlood flows into the right atrium through the vena cava when the wall of the right atrium relaxes.

DBlood flows into the right ventricle through the semilunar valve due to contraction of the right atrium.

✓ Correct Answer

The correct answer is C: Blood flows into the right atrium through the vena cava when the wall of the right atrium relaxes.

📋 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...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Biology Question

Topic

This multiple-choice question tests Transport in mammals in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology Feb/Mar 2018 examination, Paper 1 Variant 2.

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