Which micronutrient is required for splitting of water molecule during photosynthesis?
Which micronutrient is required for splitting of water molecule during photosynthesis?
Molybdenum
Magnesium
Copper
Manganese
The Correct Option is D
Solution and Explanation
The process of photosynthesis involves the splitting of water molecules, which is also known as photolysis. This step is crucial for the production of oxygen and the transfer of electrons. Among the various micronutrients, manganese (Mn) plays a vital role in this process. It is involved in the water-splitting complex of photosystem II and is essential for the stabilization of the right structure of this protein complex. Without manganese, the photolysis of water in photosynthesis does not occur efficiently, which hampers the entire photosynthetic process. Therefore, manganese is the correct micronutrient required for the splitting of water molecules during photosynthesis.
| Micronutrient | Role in Photosynthesis |
|---|---|
| Molybdenum | Involved in nitrogen metabolism |
| Magnesium | Central atom in chlorophyll |
| Copper | Plays a role in electron transport chain |
| Manganese | Essential for the water-splitting complex |
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Concepts Used:
Cells
- A device that converts chemical energy into electrical energy is called an electric cell. To an electric circuit, the battery provides the constant electromotive force.
- Each cell comprises 2 half cells which are connected in series by a conductive electrolyte containing anions and cations:
- One-half cell is made up of electrolyte and a negative electrode called an anion.
- The other half cell is made up of electrolytes and a positive electrode called a cathode.
- Redox reactions take place simultaneously.
- While charging, cations are reduced at the cathode, and anions are oxidized at the anode.
- Electrodes do not join each other as they are electrically connected by the electrolyte.