Igcse Model Questions Vol1 2017 Biology Question 7

Practice essay / theory question 7 from the 2017 Igcse Model Questions Vol1 Biology examination. This question covers Homeostasis, Endocrine system, Blood glucose regulation .

Igcse Model Questions Vol1 2017 Biology Essay / Theory

Topics: Homeostasis Endocrine system Blood glucose regulation

Question 7 IGCSE_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • essay

A 16‑year‑old student is found to have consistently high blood glucose levels during a routine health screening.

Question Parts

( a )

Explain the normal negative‑feedback mechanism that keeps blood glucose concentration within a narrow range. In your answer, describe the roles of the pancreas, insulin and glucagon, and identify the three main components of the feedback loop.

( b )

Describe the distribution of the hormone‑secreting cells within the pancreas, naming the specific cell types and the hormones they produce.

( c )

Predict the likely changes in blood‑glucose concentration and the clinical signs that would appear if the β‑cells of this student were destroyed (as in type 1 diabetes).

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About This Question

This is Igcse Model Questions Vol1 2017 Biology Question 7. It is one of the essay questions from the 2017 Igcse Model Questions Vol1 Biology examination.

The question covers Homeostasis, Endocrine system, Blood glucose regulation .

View More Igcse Model Questions Vol1 2017 Biology Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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