Q:
Which of these phosphorylates ADP to make ATP?
Answer & Explanation
Answer: A) E
Explanation: The ATP is synthesized from ADP and an inorganic phosphate and involves special channel proteins that are embedded in a membrane. ATP is formed in the electron transport chain of photosynthesis and cellular respiration.

Photosynthesis only occurs in autotrophic organisms while respiration occurs in all types of organisms.
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