What does the ATP and NADPH do in the 2nd part of photosynthesis?
In the second stage, ATP and NADPH are used to convert the 3-PGA molecules into molecules of a three-carbon sugar, glyceraldehyde-3-phosphate (G3P). This stage gets its name because NADPH donates electrons to, or reduces, a three-carbon intermediate to make G3P.
Does the second stage of photosynthesis use ATP?
Energy from sunlight is absorbed by the pigment chlorophyll in the thylakoid membrane. The energy is temporarily transferred to ATP and NADPH, which are used in the second stage of photosynthesis.
What reaction of photosynthesis uses NADPH and ATP?
These electrons are used to produce NADPH as well as ATP in a series of reactions called the light reactions because they require light. NADPH and ATP formed by the action of light then reduce carbon dioxide and convert it into 3-phosphoglycerate by a series of reactions called the Calvin cycle or the dark reactions.
Where are the ATP and NADPH used?
photosynthesis
ATP and NADPH produced during the light reaction of photosynthesis are utilised in the biosynthetic phase or carbon fixation.
How do ATP and NADPH connect light Dependant and light-independent reactions in photosynthesis?
How do ATP and NADPH connect light-dependent and light-independent reactions in photosynthesis? ATP and NADPH are produced in the light-dependent reactions and used in the light-independent reactions. The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and CO2.
What happens in the second phase Calvin cycle of photosynthesis?
In the second stage of the Calvin cycle, the 3-PGA molecules created through carbon fixation are converted into molecules of a simple sugar – glyceraldehyde-3 phosphate (G3P). This stage uses energy from ATP and NADPH created in the light-dependent reactions of photosynthesis.
How ATP and NADPH are formed during photosynthesis?
This is accomplished by the use of two different photosystems in the light reactions of photosynthesis, one to generate ATP and the other to generate NADPH. Electrons are transferred sequentially between the two photosystems, with photosystem I acting to generate NADPH and photosystem II acting to generate ATP.
How is NADPH made in photosynthesis?
NADPH is formed on the stromal side of the thylakoid membrane, so it is released into the stroma. In a process called non-cyclic photophosphorylation (the “standard” form of the light-dependent reactions), electrons are removed from water and passed through PSII and PSI before ending up in NADPH.
How do ATP and NADPH connect light-dependent and light-independent reactions in photosynthesis ATP and NADPH are produced in both reactions?
