Answer:
substitution is the Answer
In eukaryote cells, it occurs in the mitochondria or chloroplasts. In prokaryote cells, it occurs in the cell membrane.
Answer:
<em>2</em>
Explanation:
<em>Without oxygen, a cell can extract a net gain of only 2 molecules of ATP from each glucose molecule.</em>
The answer to your question would be A. i hope this answer has helped