QUESTION 20 Both passive transport and active transport A. require solutes to be transported down their...

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Remember that passive transport is the natural diffusion of molecules across the membrane, it does not requires energy thus it is always occurring down the concentration gradient. It sometimes use proteins as channels but not always, some other times the molecules just diffuse through the membrane.

Active transport is all the opposite, it requires energy thus it works against the concentration gradient, it always requires channel proteins to occur.

The answer is option D. None of these answers are correct

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QUESTION 20 Both passive transport and active transport A. require solutes to be transported down their...

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