IB Biology HL D3.3.2 Negative Feedback Loops Topic Practice

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Study D3.3.2—Negative feedback loops conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

[Maximum number: 1]

The diagram shows a feedback pathway.

Figure for Question 1 — IB Biology HL

Which sequence is an example of the pathway?

I

II

III

high blood sugar

alpha cells

secretion of insulin

low blood sugar

alpha cells

secretion of glucagon

high blood sugar

beta cells

secretion of glucagon

low blood sugar

beta cells

secretion of insulin

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