Waec Model Questions Vol1 2021 Biology Question 7

Practice essay / theory question 7 from the 2021 Waec Model Questions Vol1 Biology examination. This question covers Homeostasis .

Waec Model Questions Vol1 2021 Biology Essay / Theory

Topic: Homeostasis

Question 7 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • essay

Answer the following questions on the concept of homeostasis in the human body.

Question Parts

( a )

Explain how the pancreas contributes to the regulation of blood glucose concentration, describing the roles of insulin and glucagon.

( b )

Describe the negative‑feedback mechanism that controls body temperature in humans when ambient temperature rises.

( c )

A person is suddenly exposed to a hot, humid environment. Explain the sequence of physiological responses that occur to restore thermal homeostasis, and discuss why the effectiveness of these responses may be limited under humid conditions.

( d )

Evaluate the consequences of a chronic disturbance in glucose homeostasis, using diabetes mellitus type 2 as an example. Include at least two organ systems affected and the underlying pathophysiological mechanisms.

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About This Question

This is Waec Model Questions Vol1 2021 Biology Question 7. It is one of the essay questions from the 2021 Waec Model Questions Vol1 Biology examination.

The question covers Homeostasis .

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