O-LevelBiologyCoordination & Response5090/11 · May/June 2017 · Q241 Mark

The diagram shows some of the bones and muscles in a human arm. Which is a correct description of the changes that cause the forearm to be raised?

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.

AThe biceps muscle at 1 contracts.

BThe biceps muscle at 2 contracts.

CThe triceps muscle at 1 contracts.

DThe triceps muscle at 2 contracts.

✓ Correct answer

A: The biceps muscle at 1 contracts.

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2017 Paper 1 Variant 1, question 24.

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