Homeostasis: osmoregulation — KCSE Biology

KCSE Biology · 75 practice questions · 3 syllabus objectives

28 easy26 medium21 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

Explain the role of the kidneys in osmoregulation

State the role of ADH in water reabsorption

Homeostasis: osmoregulation

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easySHORT ANSWER2 marks

Name the organ that produces antidiuretic hormone (ADH). (2 marks)

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Part (a) — 2 marks

Hypothalamus (2 mks)

easySHORT ANSWER4 marks

Name two effects of antidiuretic hormone (ADH) on the nephron. (4 marks)

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Part (a) — 4 marks

Increases permeability of the collecting duct to water (2 mks)

Promotes the reabsorption of water back into the bloodstream (2 mks)

easySHORT ANSWER2 marks

Name the hormone that increases water reabsorption in the kidneys. (2 marks)

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Part (a) — 2 marks

Antidiuretic hormone (ADH) (2 mks)

State two ways the kidneys influence fluid balance in the body. (2 marks)

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