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elena-14-01-66 [18.8K]
3 years ago
8

Macroevolution occurs within a population.

Biology
1 answer:
ivanzaharov [21]3 years ago
5 0

Answer:

Unsure what this is asking but yes, it does.

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The voltage-gated potassium channels associated with an action potential provide an example of what type of membrane transport?

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B.<u> Facilitated diffusion. </u>

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You are studying the entry of a small molecule into red blood cells. You determine the rate of movement across the membrane under a variety of conditions and make the following observations:

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Carrier proteins - exist in two conformations, altered by high affinity binding of the transported molecule. Moves material in either direction, down concentration gradient (facilitated diffusion). EXAMPLE: GluT1 erythrocyte glucose transporter.

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This might be helpful... because I don't know anything about facilitated diffusion.

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