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The process of conversion of ADP to ATP during photosynthesis is called:
Topic: Photophosphorylation
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Answer
(c) Photophosphorylation.
Break the word into its parts and it defines itself: PHOTO (light) + PHOSPHORYLATION (adding a phosphate group). Adding a third phosphate to ADP makes ATP, using light energy.
THE TRAP is PHOTOLYSIS, which also begins with PHOTO and also happens in the light reaction. But -LYSIS means SPLITTING, and photolysis is the splitting of WATER into hydrogen and oxygen.
The two light-reaction events, side by side: PHOTOLYSIS — water is split; oxygen is released PHOTOPHOSPHORYLATION — ADP + phosphate becomes ATP Read the SECOND half of the word, not the first, and the two separate cleanly.
Photophosphorylation.