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3.3 Maintaining internal environments

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Question 25
H

A runner sweats a lot during a long race on a hot day and does not drink any water.

Which statement describes the response of the runner's body?

[1]
A

Less ADH is released, so a large volume of dilute urine is produced.

B

More ADH is released, so a large volume of concentrated urine is produced.

C

More ADH is released, so a small volume of concentrated urine is produced.

D

Less ADH is released, so a small volume of concentrated urine is produced.

Markscheme

3.3 Maintaining internal environments Questions

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

72 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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