TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The splitting of water at photosystem II is known as ____ and results in the production of ____
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photosynthesis:carbon dioxide, G3P, and electrons that are given to photosystem II.
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photolysis:oxygen, hydrogen ions (protons), and electrons that are given to photosystem II.
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the Calvin cycle:carbon dioxide, G3P, and electrons that are given to photosystem II
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chemiosmosis:oxygen, hydrogen ions (protons), glucose and electrons that are given to photosystem II.
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Explanation:
Detailed explanation-1: -PS II specifically uses light energy from the sun to extract electrons from water, resulting in the oxidation or “splitting” of water to form oxygen and hydrogen.
Detailed explanation-2: -To replace the electron in the chlorophyll, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
Detailed explanation-3: -Photophosphorylation is the conversion of ADP to ATP using the energy of sunlight by activation of PSII. This involves the splitting of the water molecule in oxygen and hydrogen protons (H+), a process known as photolysis.
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