[Answer] How many ATP molecules are need in Calvin Cycle to regenerate RuBP from 5 G3P molecules?

Answer: 3
How many ATP molecules are need in Calvin Cycle to regenerate RuBP from 5 G3P molecules?

The Calvin cycle Calvin–Benson–Bassham (CBB) cycle reductive pentose phosphate cycle (RPP cycle) or C3 cycle is a series of biochemical redox reactions that take place in the stroma of chloroplast in photosynthetic organisms. The cycle was discovered in 1950 by Melvin Calvin James Bassham and Andrew Benson at the University of California Berkeley by using the radioactive isotope carbon-14.

The GP is converted to D-glyceraldehyde 3-phosphate ( G3P ) using the energy in ATP and the reducing power of NADPH as part of the Calvin cycle . This returns ADP phosphate ions Pi and NADP+ to the light-dependent reactions of photosynthesis for their continued function. RuBP is regenerated for the Calvin cycle …

Calvin cycle – Wikipedia

Calvin cycle – Wikipedia

Glyceraldehyde 3-phosphate – Wikipedia

RuBisCO – Wikipedia

RuBisCO is one of many enzymes in the Calvin cycle .When Rubisco facilitates the attack of CO 2 at the C2 carbon of RuBP and subsequent bond cleavage between the C3 and C2 carbon 2 molecules …

Photorespiration (also known as the oxidative photosynthetic carbon cycle or C 2 photosynthesis) refers to a process in plant metabolism where the enzyme RuBisCO oxygenates RuBP wasting some of the energy produced by photosynthesis.The desired reaction is the addition of carbon dioxide to RuBP (carboxylation) a key step in the Calvin –Benson cycle but approximately 25% of reactions by …

This has led researchers to propose that the RuMP cycle may have preceded the RuBP cycle . Like the RuBP cycle this cycle begins with 3 molecules of ribulose- 5 -phosphate. However instead of phosphorylating ribulose- 5 -phosphate 3 molecules of formaldehyde form a C-C bo…

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