TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these substances in thylakoids is essential for the light reaction of photosynthesis?
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carbon dioxide
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carbohydrates
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chlorophyll
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oxygen
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Explanation:
Detailed explanation-1: -Embedded in the thylakoid membrane are molecules of chlorophyll, a pigment (a molecule that absorbs light) through which the entire process of photosynthesis begins.
Detailed explanation-2: -Chlorophyll is present in the thylakoids. It provides green colour to the plants and helps in photosynthesis.
Detailed explanation-3: -Photosynthesis takes place in two distinct stages. In the light reactions, energy from sunlight drives the synthesis of ATP and NADPH, coupled to the formation of O2 from H2O. In the dark reactions, so named because they do not require sunlight, the ATP and NADPH produced by the light reactions drive glucose synthesis.
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