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7 Cards in this Set
- Front
- Back
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Two chemical classes of hormones? What makes them different? |
1. Lipid soluble - bind to receptors in cytoplasm or nucleus 2. Water soluble - bind to receptors on surface of cell |
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2 examples of water soluble hormones |
Insulin and glucagon |
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What do lipid soluble hormones require for transport in the blood? |
Protein carriers |
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Which type of hormone has less immediate action, and a longer half life, and is affected by disturbances in plasma protein concentration |
Lipid soluble |
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What percentage of the bodys ca2+ is in the bone (as hydroxyapatite I (a complex of calcium phosphate)) Where is the other 1%? |
99% Intracellular fluid (ca2+ and protein bound) Extracellular fluid (includes interstitial fluid, blood plasma, rapodly mobilisable soluble bone ca2+) |
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More free calcium in extracellular or intracellular fluid? Why |
Extracellular fluid Signalling molecule in excitable tissue eg muscle nerves glands |
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The concentration of free calcium in the plasma links to the regulation of what |
Calcium and phosphate |
