2. Which of the following best explains why the cell membrane is described as selectively permeable?
* A.
Substances are not allowed into the cell.
* B.
Substances diffuse freely in and out of the cell.
* C.
Some substances pass into the cell while others cannot.
* D.
Some substances can move into the cell but not out of the cell.
Answers: 2
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2. Which of the following best explains why the cell membrane is described as selectively permeable?...
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