Hello!
The correct answer is: True.
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Answer:
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.
Explanation:
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I think the correct answer from the choices listed above is option C. Cnidarians is the name of lower Invertebrates that have a jelly-like layer between endoderm and ectoderm. Hope this answers the question. Have a nice day.