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exis [7]
1 year ago
11

why do plant cells occasionally switch from noncyclic electron flow (nef) to cyclic electron flow (cef)?

Biology
1 answer:
Blizzard [7]1 year ago
6 0

Creating a proton gradient across the thylakoid membrane in higher plants uses cyclic electron flow (CEF), which primarily serves two purposes: (1) producing ATP and balancing the ATP/NADPH energy budget; and (2) defending photosystems I and II from photoinhibition.

ATP and NADPH are produced by noncyclic electron transport. The single product of cyclic electron transport was ATP. Both steps are required by a plant to produce the required amount of ATP for the Calvin Cycle. The electrons are released by photosystem I and then brought back into the system during cyclic photophosphorylation. However, in non-cyclic photophosphorylation, the electrons that the photosystems emit do not come back.

learn more about photosystems here;

brainly.com/question/13034934

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Answer:

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Explanation:

If there is a change in food source, then the organism will have to adapt to that change. For example, with Darwin's Theory on the finches on the Galapagos Islands. There were many different varieties from different size to different beaks. This was because of changes on food sources and they adapted to obtain them more.

7 0
3 years ago
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coldgirl [10]

Answer:

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3 years ago
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Lunna [17]

Answer:

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Explanation:

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