Question:
The experiment material used by Van Neil, to prove that O comes out from water was studied on
The experiment material used by Van Neil, to prove that O comes out from water was studied on
Updated On: Aug 15, 2022
- Chlorella pyrenoidosa
- Cladophora
- purple & green sulphur bacteria
- blue green algae
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The Correct Option is C
Solution and Explanation
By studying purple sulphur bacteria and green sulphur bacteria, Cornelius Van Niel was the first scientist to demonstrate that photosynthesis is a light-dependent redox reaction in 1931, in which hydrogen from an oxidizable compound reduces carbon dioxide to cellular materials. This can be expressed as: 2 HA + CO $\to$ 2A + CHO + HO, where A is the electron acceptor. His discovery predicted that HO is the hydrogen donor in green plant photosynthesis and is oxidized to O.
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Concepts Used:
Photosynthesis in Higher Plants
Processes Of Photosynthesis in Higher Plants:
Photosynthesis in higher plants involves the following processes:
- Light Reaction
- Dark Reaction
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- The pigment absorbs light and produces energy in the form of ATP.
- The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.
Dark Reaction:
This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:
- Calvin Cycle (C3 Cycle)
- C4 Cycle (Hatch and Slack Pathway)