Answer:
mitochondrion
Mitochondria generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy. A mitochondrion is thus termed the powerhouse of the cell. Mitochondria are commonly between 0.75 and 3 μm ² in area but vary considerably in size and structure. Unless specifically stained, they are not visible.
Explanation:
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Yes. This is active transportation, which means it needs ATP to travel low to high concentrations. An example is the Sodium-Potassium pump
I believe it's B. Cytoskeleton and Cytoplasm.
Mitosis was used for growth and repair growth would be extremely rapid and repair would also be extremely rapid
