Difference Between Cyclic and Noncyclic Photophosphorylation

Differentiate Between Cyclic and Noncyclic Photophosphorylation. ... In the cyclic photophosphorylation, only ATP is produced, whereas, in the non-cyclic photophosphorylation both NADPH and ATP are produced. In cyclic photophosphorylation, the electrons get expelled by photosystem I and they return to the system.

1. What is the main difference between cyclic and noncyclic Photophosphorylation?
2. What is cyclic Photophosphorylation and Noncyclic Photophosphorylation?
3. What's the difference between cyclic and non-cyclic electron flow?
4. What is the difference between cyclic and noncyclic electron flow and why would a plant need both?
5. What is the point of cyclic Photophosphorylation?
6. What is meant by cyclic Photophosphorylation?
7. Is cyclic Photophosphorylation light dependent?
8. Why does cyclic Photophosphorylation occur?
9. Which one does not occur in cyclic Photophosphorylation?
10. What is the difference between linear and cyclic Photophosphorylation?
11. What is the purpose of cyclic electron flow?
12. Why is the cyclic pathway so important?

What is the main difference between cyclic and noncyclic Photophosphorylation?

Cyclic vs Non-cyclic Photophosphorylation

What is cyclic Photophosphorylation and Noncyclic Photophosphorylation?

The photophosphorylation process which results in the movement of the electrons in a cyclic manner for synthesizing ATP molecules is called cyclic photophosphorylation. ... During cyclic photophosphorylation, the electrons are transferred back to P700 instead of moving into the NADP from the electron acceptor.

What's the difference between cyclic and non-cyclic electron flow?

1 Answer. Cyclic photo-phosphorylation in photosynthesis light dependent reaction leads to the formation of ATP and NADPH, and the electrons go from water to PSII to PSI and eventually to NADPH. In non-cyclic photo-phosphorylation only some ATP is produced and the electrons go from PSII to PSI and back again.

What is the difference between cyclic and noncyclic electron flow and why would a plant need both?

Noncyclic electron transport produces ATP AND NADPH. Cyclic electron transport only produced ATP. A plant needs both processes to make enough ATP necessary for the Calvin Cycle.

What is the point of cyclic Photophosphorylation?

Cyclic photophosphorylation

This transport chain produces a proton-motive force, pumping H⁺ ions across the membrane and producing a concentration gradient that can be used to power ATP synthase during chemiosmosis.

What is meant by cyclic Photophosphorylation?

Cyclic photophosphorylation can be defined as the synthesis of ATP coupled to electron transport activated by Photosystem I solely, and can therefore proceed in long-wave-length light (03BB 2265 700 nm). This proces is unaffected by the specific inhibitors of Photosystem II, such as CMU, DCMU and orthophenanthroline.

Is cyclic Photophosphorylation light dependent?

The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle. In another form of the light reactions, called cyclic photophosphorylation, electrons follow a different, circular path and only ATP (no NADPH) is produced.

Why does cyclic Photophosphorylation occur?

Cyclic Photophosphorylation: In this type, when an electron gets excited, it leaves chlorophyll, then they travel through the electron transport circuit. Then, they return to chlorophyll again after the energy transfer process to ATP is completed.

Which one does not occur in cyclic Photophosphorylation?

Cyclic photophosphorylation produces ATP only. It does not involve the formation of NADPH.

What is the difference between linear and cyclic Photophosphorylation?

Ø In both phosphorylation and formation of ATP occurs.
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Difference between Cyclic and Noncyclic Photophosphorylation.

What is the purpose of cyclic electron flow?

In higher plants, the generation of proton gradient across the thylakoid membrane (ΔpH) through cyclic electron flow (CEF) has mainly two functions: (1) to generate ATP and balance the ATP/NADPH energy budget, and (2) to protect photosystems I and II against photoinhibition.

Why is the cyclic pathway so important?

With the cyclic pathway, plants can save some time and energy. Since photosystem I is accepting electrons that are returned to it, it is not accepting electrons from the previous electron transport chain. Therefore, the first electron transport chain will be backed up, which means that photolysis will not occur.