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3.3 Maintaining internal environments

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Question 26
H

A person drinks 2 dm3 of water in a short time.

Which statement explains the change in the urine that the person produces?

[1]
A

Blood water potential falls, more ADH is released, so more water is reabsorbed.

B

Blood water potential falls, less ADH is released, so less water is reabsorbed.

C

Blood water potential rises, less ADH is released, so less water is reabsorbed.

D

Blood water potential rises, more ADH is released, so less water is reabsorbed.

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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