PHOTOSYNTHESIS
LIGHT DEPENDENT REACTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The Calvin Cycle
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The Dark Reactions
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Photosystem 1 of the ETC
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Photosystem 2 of the ETC
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Detailed explanation-1: -Photosynthesis makes use of large multi-protein complexes called photosystems (PS) to capture solar energy and convert it to chemical energy. 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: -The enzyme complex that catalyze s the water-splitting reaction (known as the oxygen-evolving complex) contains manganese and calcium, and is located in photosystems embedded in thylakoid membranes within the chloroplast .
Detailed explanation-3: -Photosystem II (PS II) is the initial phase of photosynthesis in which water molecules are broken down into hydrogen ions (H+), electrons (e-), and oxygen.
Detailed explanation-4: -The photosynthetic electron transport chain consists of photosystem II, the cytochrome b6f complex, photosystem I, and the free electron carriers plastoquinone and plastocyanin.