A-LevelBiologyTransport in mammals9700/12 · May/June 2010 · Q391 Mark

The trace represents the electrical activity of the heart during a single heart beat. [Figure 39.1] Which letters identify the flow of current through the atria and the recovery of the ventricle walls?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

AP and R

BP and T

CQ and R

DQ and S

✓ Correct answer

B: P and T

Oracle Prep sorts past-paper questions by topic, so you can drill Transport in mammals and see which topics are most likely to come up next.

Topic: Transport in mammals, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2010 Paper 1 Variant 2, question 39.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content