Because it is polar and it is to large to cross the membrane and because the concentration gradients are to strong so they have to be diffused.
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Due to extreme (too much) cell division, a mutation of cells will occur and that is the cancer within humans.
Answer:
e. All could limit protein mobility
Explanation:
Plasma membrane proteins perform a variety of functions: they act preferentially on transport mechanisms, organizing true tunnels that allow substances to pass into and out of the cell, function as membrane receptors, among other functions. These proteins vary greatly in their mobility, some are as mobile as lipids, while others are practically immobile. But FRAP has revealed that some proteins move in cell membranes much more slowly than in reconstituted liposomes. This limited mobility can be explained by the statement in alternative "E" of the above question.
Above 30 degrees farenhieit or 0 degrees celcius there would be rain below there would be snow
