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CAIE A-Level Biology A2 14.1.10 Negative Feedback Control of Blood Glucose Questions

Explain negative feedback control of blood glucose using evidence from each question and mark scheme.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • Explain negative feedback control of blood glucose.

CAIE A-Level Biology A2 14.1.10 Negative Feedback Control of Blood Glucose Questions question 1

[Maximum number: 4]

Question (a)

(a)

In mammals, blood glucose concentration is maintained around a set point so that the mammal can function efficiently. This is an example of homeostasis.

Name the mechanism that maintains blood glucose concentration around a set point.

[ 1 ]

Question (b)

(b)

Fig. 10.1 shows how the blood glucose concentration varies before, during and after a period of exercise.

Fig. 10.1

Fig. 10.1

Explain the results shown in Fig. 10.1 between 15 minutes and 70 minutes.

[ 3 ]
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