Microscopic folds of the cell surface membrane that increase the surface area of the cell.
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Card 17
Front
Proteins in the cell surface membrane that allow the facilitated diffusion of simple ions to be accompanied by transport of a larger molecule such as glucose.
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Card 18
Front
Special proteins in the cell surface membrane that actively transport sodium and potassium ions against their concentration gradients.
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Card 19
Front
The arrangement of a tubule in a sharp hairpin so that one part of the tubule passes close to another part of the tubule with the fluid flowing in opposite directions. This allows exchange between the contents.
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Card 20
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Carries blood away from the glomerulus. Narrower than the arteriole which carries blood to the glomerulus.
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Card 21
Front
Consists of waste substances that may be toxic or are produced in excess by the reactions inside cells.
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Card 22
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The control and regulation of the water potential of the body and body fluids. In humans the kidney controls the water potential of the blood.
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Card 23
Front
The coiled portion of the nephron between th loop of Henle and the collecting duct.
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Card 24
Front
The part of the brain that contains neurosecretory cells and various receptors that monitor the blood.
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Card 25
Front
Receptor cells that monitor the water potential of the blood.
