Why is osmosis important to proper kidney functioning?
Include how osmosis is related to nephron physiology.
How does the nephron perform filtration, reabsorption and tubular secretion?
What are some examples of "water following salt."
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Question: Why is osmosis important to proper kidney functioning?
Response: Osmosis is the movement of water from an area of high concentration to an area of low concentration across a differentially permeable membrane, such as a plasma membrane. In other words, where solutes are in LOW concentration, water is in high concentration. That means that water will naturally flow (through the process known as osmosis) from the place where solute concentrations are low towards places where solute concentrations are high.
Many aspects of kidney function (and nephron physiology) relate to osmosis. If there was no osmosis, we would simply dehydrate so fast that we couldn't drink enough to stop it. Why not? Because osmosis is crucial to tubular reabsorption.
Question: Include how osmosis is related to nephron physiology.
Response: Most of the water and solutes filtered in the glomerulus are reabsorbed in the proximal convoluted tubule. If this did not happen, then we would urinate so much we'd have to live in a bathroom! For example, kidneys receive about 1400 liters of blood per day. That's an enormous volume. About 12 percent of that is filtered. That makes about 180 liters a day that we would have to drink if there was ...
Ideas to justify why osmosis is vital for kidney functions are provided.
Write about the effects of dehydration. Include answers to the following:
o Why is water essential to health maintenance?
o What are the functions of water in the body?
o What happens to the body when it does not get the water it needs?
o Compare and contrast how different electrolytes, sodium, potassium, and chloride function in the body.
o What effects can alcohol and caffeine have on hydration levels in the body?
o What steps can people take to ensure they do not become dehydrated?
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