AP Biology : Understand light dependent reactions

Study concepts, example questions & explanations for AP Biology

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Example Questions

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Example Question #101 : Plant Biology

Where is the electron transport chain located, for the light dependent reaction?

Possible Answers:

stroma

thylakoid membrane

thylakoid lumen

mitochondrial membrane

Correct answer:

thylakoid membrane

Explanation:

 The electron transport chain is located on the thylakoid membrane. The proton gradient is established through pumping hydrogen ions into the interior of the thylakoid (lumen).

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