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Question
The oxygen that evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
The oxygen that evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
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Solution
The correct option is B Manganese and Chlorine
The correct option is B.
Explanation for the correct option:
- By photolyzing water in grana thylakoids membranes, oxygen is created during the photosynthesis process in which manganese and chlorine elements are involved in the reaction.
- In the lighted chloroplasts, water is divided into oxygen and hydrogen by a process known as photolysis, or photocatalytic splitting of water.
- The process requires an oxygen-evolving complex, light energy, and an electron carrier.
- Light reactions are those that take place during the light phase.
- In this stage, intermediates for ATP and NADPH2 are created.
- These make up photosynthesis's assimilative power.
- The two photosynthetic systems, Photosystem I and Photosystem II, as well as water splitting, light absorption, oxygen release, and other processes, are all included in this phase.
- Water splitting causes oxygen to develop during a light reaction.
Explanation of incorrect options:
Option A
- Manganese is involved in photosynthesis.
- Potassium maintains cell turgidity, anion-cation equilibrium, and membrane permeability as a cofactor for numerous enzymes.
Option C
- Magnesium is an essential mineral that is a part of chlorophyll and an enzyme activator for respiration and photosynthesis.
- Molybdenum has a role in the metabolism of nitrogen and is a component of the enzyme nitrate reductase.
Option D
- Magnesium is an essential mineral that is a part of chlorophyll and an enzyme activator for respiration and photosynthesis.
- Chlorine is involved in photosynthesis.
Final answer: The oxygen that evolved during photosynthesis comes from water molecules in which the elements manganese and chlorine are involved in this reaction.
Manganese and Chlorine
The correct option is B.
Explanation for the correct option:
- By photolyzing water in grana thylakoids membranes, oxygen is created during the photosynthesis process in which manganese and chlorine elements are involved in the reaction.
- In the lighted chloroplasts, water is divided into oxygen and hydrogen by a process known as photolysis, or photocatalytic splitting of water.
- The process requires an oxygen-evolving complex, light energy, and an electron carrier.
- Light reactions are those that take place during the light phase.
- In this stage, intermediates for ATP and NADPH2 are created.
- These make up photosynthesis's assimilative power.
- The two photosynthetic systems, Photosystem I and Photosystem II, as well as water splitting, light absorption, oxygen release, and other processes, are all included in this phase.
- Water splitting causes oxygen to develop during a light reaction.
Explanation of incorrect options:
Option A
- Manganese is involved in photosynthesis.
- Potassium maintains cell turgidity, anion-cation equilibrium, and membrane permeability as a cofactor for numerous enzymes.
Option C
- Magnesium is an essential mineral that is a part of chlorophyll and an enzyme activator for respiration and photosynthesis.
- Molybdenum has a role in the metabolism of nitrogen and is a component of the enzyme nitrate reductase.
Option D
- Magnesium is an essential mineral that is a part of chlorophyll and an enzyme activator for respiration and photosynthesis.
- Chlorine is involved in photosynthesis.
Final answer: The oxygen that evolved during photosynthesis comes from water molecules in which the elements manganese and chlorine are involved in this reaction.
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