(Solved) Active and passive transport of solutes across a membrane typically differ in which of the following ways? ?

riyachand

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12 years ago

Active and passive transport of solutes across a membrane typically differ in which of the following ways? ?

a)Active transport is usually against the concentration gradient of the solute, whereas passive transport is always down the concentration gradient of the solute.
b)Active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy.
c)Active transport always requires the use of transport proteins, but passive transport can sometimes be accomplished without a protein.
d)The first and second choices are correct.
The first, second, and third choices are all correct.

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rivertube

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12 years ago

a,b,c,are all correct

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rivetcolin

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12 years ago

a)Active transport is usually against the concentration gradient of the solute, whereas passive transport is always down the concentration gradient of the solute.

-Active transport is is going from Low Concentration to High Concentration

b)Active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy.

- Active transport requires energy, passive trasport does not

c)Active transport always requires the use of transport proteins, but passive transport can sometimes be accomplished without a protein.

- Active transport requires a Carrier Protein.

Facillitated Diffusion- (Which is passive) Uses a carrier or a Channel protein

Diffusion- (which is passive) Does not need a protein.

Hope it helps.

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barry

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