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O-LevelBiologyCoordination & Response5090/11 · May/June 2012 · Q221 Mark

The graph shows the changes in blood glucose concentration following the injection of a small amount of a substance into the blood of a person at time X. [Figure 22.1] Which substance was injected at time X?

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Aadrenaline
Binsulin
Coestrogen
Dpenicillin

✓ Correct answer

B: insulin

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About this question

Topic
Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2012 Paper 1 Variant 1, question 22.

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