Where you keep your internal environment as constant as possible.
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What does insulin do?
It tells cells to take up glucose. It also tells cells such as the liver and muscles to convert glucose to glycogen for storage.
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What is glucagon?
A hormone released by the pancreas when it detects that sugar levels are too low. It tells cells to convert glycogen back into glucose.
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What do the kidneys do?
They remove urea, produced by the liver. They also remove excess water and mineral ions.
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During selective absorption, what remains in the capillaries?
Plasma, red blood cells, white blood cells, protein and platelets.
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How much glucose is reabsorbed?
All
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How much ions are reabsorbed?
some
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How much urea is reabsorbed?
none
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How much water is reabsorbed?
some
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What is urea?
In the liver, excess proteins get broken down into amino acids. Excess amino acids are converted into fats and carbohydrates, which can be stored. This is called deamination. Ammonia is formed as a by product. As ammonia is toxic, it is broken down
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What is urea(continued)?
into urea. Urea is then transported to the kidneys where it is filtered out of the blood and is excreted as urine.
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Why does the body sometimes reject kidney transplants?
All cells are covered in antigens. If your immune system doesn't recognise these antigens, it will attack them with antibodies.
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Other cards in this set
Card 2
Front
What does insulin do?
Back
It tells cells to take up glucose. It also tells cells such as the liver and muscles to convert glucose to glycogen for storage.
Card 3
Front
What is glucagon?
Back
Card 4
Front
What do the kidneys do?
Back
Card 5
Front
During selective absorption, what remains in the capillaries?
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