A-LevelBiologyTransport in mammalsMay/June 2014Paper 1 Q261 Mark

What is not a factor influencing blood pressure?

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.

Athe diameter of the blood vessels

Bthe number of red blood cells in circulation

Cthe systolic pressure of the heart ventricles

Dthe volume of blood returning to the heart each heart beat

✓ Correct Answer

The correct answer is B: the number of red blood cells in circulation

📋 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 May/June 2014 examination, Paper 1 Variant 2.

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