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mina [271]
3 years ago
12

The movement of molecules down a concentration gradient through transport proteins in the cell membrane is a type of

Biology
1 answer:
ioda3 years ago
4 0

Answer:

Facilitated Diffusion

Explanation:

Some molecules can move down their concentration gradients by crossing to the lipid portion of the membrane directly,while others must pass through membrane protein s in a process called Facilitated Diffusion

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Your best bet is most likely going to be B

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If an atom has a mass number of 23, which of the following is always true? A. The number of protons in the nucleus does not equa
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The correct answer will be A;

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If the number of protons in the nucleus is equal the number of neutrons , we would have an even mass number; because Z=N=x; then A=x+x=2x  (this is always an even number) but  23 is an odd number, therefore the number of protons in the nucleus does not equal the number of neutrons. 
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Which type of fault occurs when rock is subjected to this type of stress?
gavmur [86]

Answer:

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Explanation:

hope it helps !

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3 0
4 years ago
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