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Choose the total number of correct statements from the following.
a) Some channels in membrane are always open
b) Porins allow passage of molecules of size up to small protein
c) Water channel is made up of eight different types of aquaporins
d) Facilitated diffusion is very specific

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One

Three

Two

Four

answer is D.

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Detailed Solution

Some channels in membrane are always open. They allow passage of molecules of size up to small protein. Water channel is made up of eight different types of aquaporins. Facilitated diffusion is very specific.

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