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AS & A Level Biology - 9700 Paper 4 2024 Winter Zone 2
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Topic: CH14 - HOMEOSTASIS
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CH14 - HOMEOSTASIS
(a) In mammals, blood glucose concentration is maintained around a set point so that the mammal can function efficiently. This is an example of homeos...
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(a) Blood glucose concentration is maintained around a set point by homeostasis. Explain the principles of homeostasis.[4]
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Osmoregulation is the control of the water potential of body fluids such as blood.
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The mammalian kidney is responsible for:
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The kidney is an important organ of homeostasis. One role of the kidney is osmoregulation.
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(a) Fig. 1.1 is a drawing of a longitudinal section (LS) of a human kidney.
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Amino acids are the monomers that are used to produce proteins in organisms. Amino acids also have other, non-protein, roles in the body.
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(a) (i) When blood glucose concentration decreases, glucagon is released by the pancreas into the blood and is transported to the cells.
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