ITS a) permeable to WATER only b) permeable to both ions and water.
My textbook says its permeable to ions too but to a lesser extent . Could option b be correct?
My textbook says its permeable to ions too but to a lesser extent . Could option b be correct?
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I would say (a.)
It is permeable to solutes to a lesser extent but most sources say it is 'relatively impermeable to solutes'. If you choose (b.) it would be possible to argue that it is technically correct but I think the answer they are looking for here is most likely (a).
It is permeable to solutes to a lesser extent but most sources say it is 'relatively impermeable to solutes'. If you choose (b.) it would be possible to argue that it is technically correct but I think the answer they are looking for here is most likely (a).
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The permeability is as follows:
Substance Permeability
ions: Low permeability. Sodium and chloride ions do not easily pass through.
urea: Moderate permeability.
water: Highly permeable. Water is readily reabsorbed from the descending limb by osmosis.
Substance Permeability
ions: Low permeability. Sodium and chloride ions do not easily pass through.
urea: Moderate permeability.
water: Highly permeable. Water is readily reabsorbed from the descending limb by osmosis.