PHOTOSYNTHESIS
LIGHT DEPENDENT REACTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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oxygen
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water
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carbon dioxide
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Detailed explanation-1: -The light reactions capture energy from sunlight, which they change to chemical energy that is stored in molecules of NADPH and ATP. The light reactions also release oxygen gas as a waste product.
Detailed explanation-2: -The oxygen is released as a waste product-oxygen atoms from disassembled water molecules join up in pairs to form oxygen gas (O2). The hydrogen ions build up in high concentration in the lumen of the thylakoid.
Detailed explanation-3: -So the splitting of water provides electrons to photosystem I, but it also produces oxygen in the process. We now have enough information to answer the question. The correct answer choice is (A). The specific process in the light-dependent reactions that produces oxygen is the photolysis of water.