The reaction centre PS II has an absorption maxima at
The reaction centre PS II has an absorption maxima at
700 nm
660 nm
780 nm
680 nm
The Correct Option is D
Solution and Explanation
The reaction centre known as Photosystem II (PS II) is a crucial part of the photosynthetic process in plants, algae, and cyanobacteria. The absorption maxima of the reaction center refers to the specific wavelength of light that is most effectively absorbed during the photochemical reactions. PS II primarily functions in the light-dependent reactions of photosynthesis, where it captures photons and uses this energy to extract electrons from water molecules, releasing oxygen as a byproduct.
The correct absorption maxima for the reaction centre PS II is 680 nm. Hence, the correct answer is:
680 nm
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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
Light Reaction:
- This phenomenon occurs in the presence of light.
- 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)