Where are electron transport chains that are responsible for ATP production located in plant cells?
A)in the outer chloroplast membranes only
B)in the thylakoid membranes only
C)in the inner mitochondrial membranes only
D)in the thylakoid and outer chloroplast membranes
E)in the thylakoid and inner mitochondrial membranes

Question

Quizplus · Accepted Answer

Electron transport chains responsible for ATP production are located in the thylakoid membranes of chloroplasts during photosynthesis and in the inner mitochondrial membranes during cellular respiration. Therefore, the correct choice is E, which includes both thylakoid and inner mitochondrial membranes. Choices A and D are incorrect because the outer chloroplast membrane is not involved in ATP production. Choice B is incorrect because although the thylakoid membranes are involved in ATP production during photosynthesis, they are not involved in ATP production during cellular respiration. Choice C is incorrect because it only refers to the location of the electron transport chain during cellular respiration and not during photosynthesis.

Where Are Electron Transport Chains That Are Responsible for ATP