TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is used in the Calvin cycle.
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It is released into the atmosphere.
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It combines with NADPH to produce water.
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It is recycled as a reactant in another light-dependent reaction.
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Detailed explanation-1: -The oxygen molecules produced as byproducts exit the leaf through the stomata and find their way to the surrounding environment. The hydrogen ions play critical roles in the remainder of the light-dependent reactions.
Detailed explanation-2: -The oxygen released during photosynthesis is from the water. The plants will absorb water as well as carbon dioxide during photosynthesis. Later these water molecules are converted into oxygen and sugar. The oxygen is then released into the atmosphere whereas the sugar molecules are stored for energy.
Detailed explanation-3: -The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then used in the light-independent reactions.
Detailed explanation-4: -Yes, oxygen is produced in the light reaction of photosynthesis in lumen thylakoid by the photolysis of water.
Detailed explanation-5: -The Two Parts of Photosynthesis The light-dependent reactions release oxygen from the hydrolysis of water as a byproduct.