Igcse Model Questions Vol1 2023 Biology Question 7

Practice essay / theory question 7 from the 2023 Igcse Model Questions Vol1 Biology examination. This question covers Homeostasis .

Igcse Model Questions Vol1 2023 Biology Essay / Theory

Topic: Homeostasis

Question 7 IGCSE_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • essay

Homeostasis is essential for maintaining the internal environment of the human body within narrow limits.

Question Parts

( a )

Explain how negative feedback regulates the concentration of glucose in the blood. In your answer identify the sensor, control centre and effectors and describe the outcome of the response.

( b )

Compare negative feedback with positive feedback. Give one human example of each and explain why positive feedback is less common in physiological regulation.

( c )

A person with type 1 diabetes is unable to produce insulin. Discuss how this defect disrupts the homeostatic regulation of blood glucose and outline two possible long‑term consequences for other organ systems.

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About This Question

This is Igcse Model Questions Vol1 2023 Biology Question 7. It is one of the essay questions from the 2023 Igcse Model Questions Vol1 Biology examination.

The question covers Homeostasis .

View More Igcse Model Questions Vol1 2023 Biology Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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