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Byju's Answer
Standard XII
Biology
Facilitated Diffusion
Porins are
Question

Porins are

A
proteins
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B
lipids
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C
carbohydrates
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D
none of these
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Solution

The correct option is A proteins
Porins are transport proteins present in biological membranes. They are a type of channel proteins that form large pores in the outer membranes of cell organelles like mitochondria, plastids and also in bacteria. The porins that form water channels and allow movement of water are called aquaporins.

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