Question

One of the "Essential Skills" of our 10th lecture (Photosynthesis) was - "be able to compare/contrast the processes of oxidative phosphorylation in the mitochondrion and the light-dependent reactions in the chloroplasts (follow the energy and electrons in both)."

Focus your attention on the electron transport chain in mitochondria and the photosystems in chloroplasts. Both of these involve electron carriers (NADH or NADPH) and both are coupled to ATP synthesis somehow. With a focus on the energy and electrons, describe the major differences between the mitochondrial and chloroplast processes.

(This one probably takes 4-6 sentences.)

Answer 1

	MITOCHONDRIA	CHLOROPLAST
1	Mitochondria use oxidative phosphorylation	Chloroplasts use photophosphorylation
2	Mitochondria uses chemical energy from redox reactions	Chloroplasts use light energy
3	Mitochondria has the co enzyme NAD and FAD	Chloroplasts have NADP
4	Mitochondria have proton gradient from the inter-membrane space to the matrix -	Chloroplasts have it from the thylakoid space to the stroma
5	Mitochondria have final electron acceptor of Oxygen and H+ -	Chloroplasts have Chlorophyll in cyclic photophosphorylation and NADPH+ in non cyclic photophosphorylation.