Which of the following events does not take place in the light reactions?
a) transfer of electrons to the reaction center of photosystem i
b) conversion of 3pg to g3p
c) generation of nadph from nadp+
d) splitting of water, releasing an electron
e) generation of atp from adp + pi

B) Conversion of 3PG to G3P

Explanation:

Conversion of 3PG (3 phosphoglycerate) or 3 phosphoglyceric acid is a reduction reaction step of the Calvin cycle, it does not take place during light reaction of the photosynthesis. The 3PG is converted into molecules of glyceraldehyde-3-phosphate (G3P) using ATP and NADPH. Generation of NADPH from NADP+, Photolysis or splitting of splitting of water that releases an electron and synthesis of ATP from ADP + Pi occurs during light reactions.