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 |
Top Questions on Cell: the unit of life
- Which organelle is primarily responsible for producing ATP in a cell?
- MHT CET - 2025
- Biology
- Cell: the unit of life
- Which organelle in a eukaryotic cell is primarily responsible for synthesizing proteins destined for secretion?
- MHT CET - 2025
- Biology
- Cell: the unit of life
- Which of the following organisms or organelles contain 70S ribosomes?
- MHT CET - 2025
- Biology
- Cell: the unit of life
- What is the movement of cytoplasm within a cell called?
- MHT CET - 2024
- Biology
- Cell: the unit of life
- Given below are two statements: Statement I: Cell wall is freely permeable.
Statement II: Plasma membrane is selectively permeable.
Choose the correct answer from the options given below with reference to the structure of root hair:- MHT CET - 2024
- Biology
- Cell: the unit of life
Questions Asked in NEET exam
- Given below are two statements:
Statement I: The DNA fragments extracted from gel electrophoresis can be used in the construction of recombinant DNA.
Statement II: Smaller size DNA fragments are observed near the anode while larger fragments are found near the wells in an agarose gel.- NEET (UG) - 2025
- Molecular Biology
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- RNA interference
- Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable.
Statement II: DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repair mechanisms. In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- Structure of DNA and RNA
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Optical Instruments
- Two gases A and B are filled at the same pressure in separate cylinders with movable pistons of radii \(r_A\) and \(r_B\) respectively. On supplying an equal amount of heat to both the cylinders, their pressures remain constant and their pistons are displaced by 16 cm and 9 cm respectively. If the change in their internal energies is the same, then the ratio \(r_A / r_B\) is:
- NEET (UG) - 2025
- Thermodynamics
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.