CBSE Class 10 Answered
The splitting up of water molecule in the light dependent part of photosynthesis is done with the help of chemical energy or not?
Asked by | 05 Sep, 2011, 12:00: AM
Expert Answer
Light energy is needed to split water molecule during photosynthesis.
In the Light Dependent Processes (Light Reactions) light strikes chlorophyll a in such a way as to excite electrons to a higher energy state. In a series of reactions the energy is converted (along an electron transport process) into ATP and NADPH. Water is split in the process, releasing oxygen as a by-product of the reaction. The ATP and NADPH are used to make C-C bonds in the Light Independent Process (Dark Reactions).
Answered by | 06 Sep, 2011, 08:06: AM
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