Ijmb Model Questions Vol1 2023 Biology Question 7

Practice essay / theory question 7 from the 2023 Ijmb Model Questions Vol1 Biology examination. This question covers Homeostasis, Negative feedback, Blood glucose regulation, Pancreatic hormones .

Ijmb Model Questions Vol1 2023 Biology Essay / Theory
Topics: Homeostasis Negative feedback Blood glucose regulation Pancreatic hormones
Question 7 IJMB_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • essay

The maintenance of internal stability (homeostasis) is essential for the proper functioning of the human body.

Question Parts

( a )
Define homeostasis and outline the general features of a negative‑feedback control system.
( b )
The regulation of blood glucose concentration involves the pancreas.
( ) Name the two principal hormones released by the pancreas that are directly involved in blood‑glucose control.
( ) For each hormone, describe its site of secretion, the direction of its effect on blood glucose, and the principal target tissues.
( c )
A 45‑year‑old man with type‑2 diabetes mellitus presents with a fasting plasma glucose concentration of 180 mg dL⁻¹. Explain why this value indicates a failure of homeostatic control and list two clinical manifestations that are likely to result from sustained hyperglycaemia.
( d )
Propose two non‑pharmacological strategies that could assist the patient in re‑establishing glucose homeostasis, and justify how each strategy influences the feedback loop.

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About This Question

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

The question covers Homeostasis, Negative feedback, Blood glucose regulation, Pancreatic hormones .

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