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3.3 Maintaining internal environments

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Question 1

Dehydration stimulates the release of ADH (antidiuretic hormone) from the pituitary gland.

Which statement describes the effect of this increased ADH release on the urine produced?

A

Concentrated urine with a higher volume

B

Concentrated urine with a lower volume

C

Diluted urine with a higher volume

D

Diluted urine with a lower volume

Markscheme

3.3 Maintaining internal environments Questions

  1. GCSE
  2. /Biology
  3. /3.3 Maintaining internal environments

22 exam-style questions on OCR GCSE Biology 3.3 Maintaining internal environments, covering 3.3.1 Importance of a constant internal environment, 3.3.2 The skin and body temperature, 3.3.3 Insulin and blood sugar, 3.3.4 Glucagon and blood sugar, 3.3.5 Type 1 and type 2 diabetes, 3.3.6 Osmotic changes in body fluids, 3.3.7 Kidneys and water balance, 3.3.8 Structure of the kidney and tubule, 3.3.9 ADH and kidney tubule permeability, and 3.3.10 Responses to temperature and osmotic challenges. Each one has a worked solution and a mark scheme showing where the marks go.

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