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Home Q & A Board Biology-Related Homework Help Cell Biology
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rjlene rjlene
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11 years ago
A)can move substances from low to high concentrations.
B)requires energy in the form of ATP
C)requires a carrier protein
D)can move substances from low to high concentrations and requires energy in the form of ATP.
E)all of the above are true of active transport and not passive.
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wrote...
#1
11 years ago
I would say D.

Here's an explanation. Passive transport can't move from low to high concentration...ever. So, D is the only option that really excludes passive transport.
wrote...
#2
11 years ago
"All of the above."

Active transport is the equivalent of a sump pump. Instead of electricity, ATP provides the energy required to cause something to happen which would not occur on its own. (Water does not flow uphill).
wrote...
#3
11 years ago
A)can move substances from low to high concentrations.
B)requires energy in the form of ATP
D)can move substances from low to high concentrations and requires energy in the form of ATP.

There are carrier channels involved in passive transport like diffusion for substances that are water souble and cant penetrate the phospholipid bilayer - so it cant be C) nor E)

Hope it helped Slight Smile
wrote...
#4
11 years ago
The answer is D Smiling Face with Open Mouth
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