Question

write the mechanism of light reaction in photosynthesis
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Answer 1

Answer:

◇ The Light Reactions of Photosynthesis.Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.

◇ Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.

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Answer 2

Explanation:

absorption of sunlight is 1 st step

photolysis of water is 2nd

step 3 is ==The highly reactive ions of water undergo quick change as

described below.

OH-

ions through a series of steps produce water (H2

0) and Oxygen

(O2

). Water may be used by the plant inside, but O2

is useually released

into the atmosphere. H+ ions undergo series of changes in dark reaction.

compounds that can trap energy like ATP (Adenosine Tri phosphate) and

NADPH (Nicotinamide Adenosine Dinucleotide Hydrogen Phosphate) are

formed at the end of the light reactio