Question:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Iron is an essential micronutrient for plants.
Reason R: Iron is involved in electron transfer reactions (Fe2+ ↔ Fe3+).
In light of the above statements, choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Iron is an essential micronutrient for plants.
Reason R: Iron is involved in electron transfer reactions (Fe2+ ↔ Fe3+).
In light of the above statements, choose the correct answer from the options given below:
Assertion A: Iron is an essential micronutrient for plants.
Reason R: Iron is involved in electron transfer reactions (Fe2+ ↔ Fe3+).
In light of the above statements, choose the correct answer from the options given below:
Show Hint
Iron functions in plants:
- Chlorophyll synthesis
- Electron transfer (cytochromes, ferredoxin)
- Nitrogen fixation
- Respiration
Deficiency: Interveinal chlorosis (young leaves).
- Chlorophyll synthesis
- Electron transfer (cytochromes, ferredoxin)
- Nitrogen fixation
- Respiration
Deficiency: Interveinal chlorosis (young leaves).
Updated On: Aug 25, 2026
- Both A and R are correct and R is the correct explanation of A
- Both A and R are correct but R is NOT the correct explanation of A
- A is correct but R is not correct
- A is not correct but R is correct
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
This question tests knowledge of micronutrients and their role in plants.
Step 2: Detailed Explanation:
Assertion A:
Iron is an essential micronutrient for plants.
It is required in small amounts for various physiological processes.
This statement is true.
Reason R:
Iron is involved in electron transfer reactions (Fe2+ ↔ Fe3+).
This redox property makes it essential for:
- Photosynthesis (chlorophyll synthesis).
- Respiration (cytochrome system).
- Nitrogen fixation (nitrogenase).
This statement is true.
Relationship between A and R:
R explains A by describing the role of iron in plants.
The electron transfer capability (Fe2+ ↔ Fe3+) is the reason iron is essential.
Thus, R is the correct explanation of A.
Step 3: Final Answer:
Thus, both A and R are correct and R is the correct explanation of A.
[0.5cm]
This question tests knowledge of micronutrients and their role in plants.
Step 2: Detailed Explanation:
Assertion A:
Iron is an essential micronutrient for plants.
It is required in small amounts for various physiological processes.
This statement is true.
Reason R:
Iron is involved in electron transfer reactions (Fe2+ ↔ Fe3+).
This redox property makes it essential for:
- Photosynthesis (chlorophyll synthesis).
- Respiration (cytochrome system).
- Nitrogen fixation (nitrogenase).
This statement is true.
Relationship between A and R:
R explains A by describing the role of iron in plants.
The electron transfer capability (Fe2+ ↔ Fe3+) is the reason iron is essential.
Thus, R is the correct explanation of A.
Step 3: Final Answer:
Thus, both A and R are correct and R is the correct explanation of A.
[0.5cm]
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