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9 Cards in this Set
- Front
- Back
One of the major functions of the kidney is to:
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Purify blood
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What part of the kidney must the blood first enter in order to get purified?
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The first step is filtering the blood in a structure called the glomerulus.
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What happens to cells and proteins that are too large to pass thru the glomerulus?
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cells and large proteins that do not pass through the glomerulus are retained in the blood stream
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What happens after products get purified in the kidney?
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They are lost via urination
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How does the kidney prevent water, digested food, hormones, salts,etc from leaving the body?
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water, digested food, hormones, salts, would leave the body if the kidney did not have a means of putting them back into the blood stream. This replacement is called reabsorption
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Which two mechanisms are needed in order to allow molecules to re-enter the blood stream?
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Diffusion and osmosis are the mechanisms by which necessary molecules re-enter the blood stream
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Where do molecules move to during diffusion?
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diffusion is the movement of molecules from an area of higher concentration to one of lower concentration.
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What is Dialysis Tubing used to measure?
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Dialysis tubing can be used to create an artificial cell to study the movement of molecules across a membrane.
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Define Osmosis:
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Osmosis is the passage of water across a semi-permeable membrane.
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