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IMPORTANT
Earn 100
Uric acid is a nitrogenous waste product, which is produced from the breakdown of purines. What are purines and what are they used for?
Important Questions on Homeostasis
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IMPORTANT
Explain why it is important that carbon dioxide and nitrogenous wastes are excreted and not allowed to accumulate in the body.
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IMPORTANT
How reabsorption of water from the proximal convoluted tubule takes place?
MEDIUM
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IMPORTANT
State the name of the process by which water is reabsorbed.
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IMPORTANT
Calculate the volume of filtrate that enters the loops of Henle from the proximal convoluted tubules each minute.
MEDIUM
AS and A Level
IMPORTANT
Although almost half of the urea in the glomerular filtrate is reabsorbed from the proximal convoluted tubule, the concentration of urea in the fluid in the nephron actually increases as it passes along the proximal convoluted tubule. Explain why this is so.
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IMPORTANT
Explain how each of this feature of the cells in the proximal convoluted tubules adapts them for the reabsorption of solutes:
microvilli
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IMPORTANT
Explain how each of these features of the cells in the proximal convoluted tubules adapts them for the reabsorption of solutes:
many mitochondria
EASY
AS and A Level
IMPORTANT
Explain how each of these features of the cells in the proximal convoluted tubules adapts them for the reabsorption of solutes:
folded basal membranes.
