In Photosynthesis, What Is the Role of Water H₂O)

question 40

Multiple Choice

In photosynthesis, what is the role of water H₂O) ?

• A) It accepts electrons liberated from the reaction centre of photosystem I.
• B) It provides O2, the terminal electron acceptor for the electron transport chain.
• C) It allows cyclic photophosphorylation to occur when ATP levels are low in the stroma.
• D) It donates electrons to replace lost electrons in the reaction centre of photosystem II.
• E) It provides the necessary H+ ions needed to reduce glyceraldehyde- 3- phosphate G3P).

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