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Inside the cell, NAD is mostly oxidized. The ready availability of the NAD+ will help to speed up the oxidative reactions in the TCA and glycolysis. In contrast, NADP is mainly found in the reduced state. The high level of NADPH will promote reductive reactions in biosynthesis.

(http://watcut.uwaterloo.ca/webnotes/Metabolism/page-8.2.html)

NAD+ is reduced to NADH in respiration, and NADPH is produced from NADP+ in the light stage of photosynthesis and is not involved in respiration. Remember P (NADP+ and Photosynthesis).

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11y ago
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14y ago

im trying to find out the same thing, becuse:

6 ATP are used (to turn 6 3phosphoglyceric acids into 6 1,3phosphoglyceric acids)
1 NADPH is used (to turn said 6 1,3phosphoglyceric acids into 6 3phosphoglyceraldehydes)

each cycle uses 9 molecules of ATP and 6 molecules of NADPH2. They are regenerated in the light rxns.

dont know which answer to go with

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15y ago

NADPH has a Hydrogen ion and NADP+ does not.

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15y ago

NADP+ accepts and holds 2 high-energy electrons along with a hydrogen ion (H+).

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12y ago

when you have the carrier NADP+ , it goes through the light independent reaction and obtain another H+ phospherate. thats when you get NADPH.

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13y ago

NADP just holds two charged electrons. NADPH also carries two electrons but also carries a charged hydrogen atom.

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12y ago

It is reduced from the Calvin Cycle or the Dark reaction of photosynthesis.

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11y ago

the meaning of nadph

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Q: How nadph has more energy than nadp?
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How does NADPH get into the low form of chemical energy?

NADPH, which is reduced, is in a high form of free energy. Its low from of free energy is NADP+, which is oxidized. NADPH reaches its high state of free energy through the light reaction phase of photosynthesis. After photosystem 1 (PSI) Fd, which is an electron acceptor, reduces NADP+ turing it into NADPH by adding one proton (H+) and two electrons on to it. It is a more versatile energy source during the Calvin Cycle, the second stage of photosynthesis, than water because it has higher free energy and its energy is more accessible.


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