Answer:
The reverse of the pump is for the cell to absorb water and store it inside the plasma membrane this happens when the organisms are in a hypotonic solution.
Explanation:
Answer:
Active transport requires energy because it is not a passive process. The molecule has to go against the concentration gradient. Hence it requires energy to be carried by the carrier proteins.
The energy is used is ATP, which comes from respiration
Because we see that they have their own RNA, called mtRNA, so it makes sense that they might have been their own organism at one point in time.
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