TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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As the electrons travel from photosystem II down the first electron transport chain, their energy is used to ____
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form oxygen, water, NADPH, and glucose.
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pump hydrogen ions into the stroma, producing a concentration gradient that will later be used by an enzyme to form ADP and phosphate.
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pump hydrogen ions into the thylakoid space, producing a concentration gradient that will later be used by ATP synthase to form ATP.
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create glucose directly.
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Explanation:
Detailed explanation-1: -A photon strikes photosystem II to initiate photosynthesis. Energy travels through the electron transport chain, which pumps hydrogen ions into the thylakoid space. This forms an electrochemical gradient.
Detailed explanation-2: -The electrons then exit the photosystem and move down the electron transport chain. As electrons move from one component to the next, they release energy. The electrons that have left photosystem II need to be replaced, and these electrons are provided by the photolysis of water.
Detailed explanation-3: -The passing of the electron in the first part of the electron transport chain causes protons to be pumped from the stroma to the thylakoid lumen.
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