Both mitochondria and chloroplasts use electron transport chains (ETC) to harness energy.

(a) Compare the spatial differences between the ETC of a chloroplast and the ETC in a mitochondrion.
(b) Explain where the electrons come from in each ETC, and what picks up the energy at the end of each chain.
(c) Describe the role of water in recharging the photosystem after electrons move down the ETC.
Suppose there is an arrest in ADP and NADPH production in the light dependent reactions.
(d) Describe what effect this would have on the events of the Calvin cycle.

Question

Both mitochondria and chloroplasts use electron transport chains (ETC) to harness energy. 

(a) Compare the spatial differences between the ETC of a chloroplast and the ETC in a mitochondrion. 
(b) Explain where the electrons come from in each ETC, and what picks up the energy at the end of each chain. 
(c) Describe the role of water in recharging the photosystem after electrons move down the ETC. 
Suppose there is an arrest in ADP and NADPH production in the light dependent reactions.
(d) Describe what effect this would have on the events of the Calvin cycle.

anonymous · Answer

Answering any of those will help me understand it :)

zubhanwc3 · Answer

i had the answer:/ but OS had to update when i was posting it ffs.

zubhanwc3 · Answer

this answers a and b. http://answers.yahoo.com/question/index?qid=20081027034155AAFQfK2 c) In photosystem II, water is split creating protons and oxygen as waste product. The electrons in PSII are passed to PSI. PSII also requires light, but not water, the light excites another electron which is used to create NADPH. d) idk

zubhanwc3 · Answer

and i had the answer 5 hours ago T_T.

anonymous · Answer

Awh, that sucks! Well, thank you very much anyhow. You've been very helpful! ^_^

anonymous · Answer

Oooh, that makes sense. Thanks again. I was able to find d on my own :]