Question

What is needed to convert PGA into G3P in the second step of the Calvin-Benson cycle? carbon atoms from carbon dioxide, RuBP, and an enzyme electrons from ATP and energy from NADPH energy from ATP and electrons from NADPH carbon atoms from RuBP, carbon dioxide, and an enzyme

Answer 1

Energy from ATP and Electrons from NADPH

Answer 2

PGA ( Phosphoglyceric acid) is a first stable product of photosynthesis which under goes reduction. Six molecules of 3-PGA is reduced to six molecules of a chemical compound called glyceraldehyde 3-phosphate (G3P). In this conversion; six molecules of both ATP and NADPH are used. In this reduction reaction, there is gain of electrons by 3-PGA. NADPH is oxidized to NADP+ to give elections and energy is given by ATP.