Water is split during the
AKrebs cycle inside mitochondria
BDark reaction by carbon fixation
CGlycolysis step inside cytoplasm
DLight reaction by photolysis
Answer & Solution
Correct answer: D. Light reaction by photolysis
1. The light reaction uses photon energy.
2. This energy splits water molecules in photolysis.
3. The output is electrons, protons and O2.
4. So water splitting is in the light reaction.
_Source: Selina Concise Biology Class 10, Ch on Photosynthesis (Mistral OCR'd PDF), section on photolysis_
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