Neco 2019 Biology Question 7

Practice essay / theory question 7 from the 2019 Neco Biology examination. This question covers Homeostasis .

Neco 2019 Biology Essay / Theory

Topic: Homeostasis

Question 7 NECO • 2019 • BIOLOGY • essay

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

Question Parts

( a )

Explain, with reference to blood glucose regulation, how a negative feedback mechanism operates. In your answer, identify the key hormone(s), the primary target organ(s) and describe the sequence of events that restore normal glucose levels after a meal.

( b )

A diabetic patient records a fasting blood glucose concentration of 180 mg/dL. Normal fasting blood glucose is 90 mg/dL. Calculate the percentage increase in the patient's fasting glucose relative to normal and comment on the physiological significance of this deviation.

( c )

Design a simple experimental procedure to investigate the effect of moderate aerobic exercise on blood glucose homeostasis in healthy adult volunteers. State the hypothesis, the control and experimental groups, the variables to be measured, the method of data collection and the type of result that would support your hypothesis.

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About This Question

This is Neco 2019 Biology Question 7. It is one of the essay questions from the 2019 Neco Biology examination.

The question covers Homeostasis .

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