Question

Match List I with List II:

	List I		List II
A.	Iron	I.	Synthesis of auxin
B.	Zinc	II.	Component of nitrate reductase
C.	Boron	III.	Activator of catalase
D.	Molybdenum	IV.	Cell elongation and differentiation

Choose the correct answer from the options given below:

• A. A-II, B-III, C-IV, D-I
• B. A-III, B-I, C-IV, D-II
• C. A-II, B-IV, C-I, D-III
• D. A-III, B-II, C-I, D-IV

Answer 1

The Correct Option is B

The task is to match List I (elements) with List II (biological functions):

	List I		List II
A.	Iron	I.	Synthesis of auxin
B.	Zinc	II.	Component of nitrate reductase
C.	Boron	III.	Activator of catalase
D.	Molybdenum	IV.	Cell elongation and differentiation

The correct matches according to the options provided are:

• Iron is an Activator of catalase.
• Zinc is involved in the Synthesis of auxin.
• Boron plays a role in Cell elongation and differentiation.
• Molybdenum acts as a Component of nitrate reductase.

Therefore, the correct option is:

A-III, B-I, C-IV, D-II

Answer 2

Explanation:

1. Iron: Iron is involved in the synthesis of chlorophyll, and in the activation of catalase. Catalase is an enzyme that contains four iron heme groups allowing it to react with hydrogen peroxide.
2. Zinc: It is required for the synthesis of auxin. Auxin is a plant growth hormone that help stimulate cell elongation in stems.