Question

Which of the following are correctly matched?

$\begin{array}{ccc}& \text{Element}& \text{Characteristic/Role}\\ \text{A}& \text{Magnesium}& \text{Component of}\\ & & \text{energy related chemical}\\ & & \text{compound}\\ \text{B}& \text{Manganese}& \text{Nitrogen metabolism}\\ \text{C}& \text{Copper}& \text{Pollen germination}\\ \text{D}& \text{Calcium}& \text{Formation of mitotic}\\ & & \text{spindle}\end{array}$

• A. Only A and D
• B. Only B and C
• C. A, C and D
• D. A, B and D

Answer 1

The correct option is D A, B and D

Magnesium is a constituent of the ring structure of chlorophyll, an energy producing compound and also helps to maintain the ribosome structure.

Manganese activates many enzymes involved in photosynthesis, respiration and nitrogen metabolism.

Copper is essential for overall metabolism in plants. It is associated with certain enzymes involved in redox reactions.

Calcium is required by meristematic and differentiating tissues. During cell division, it is used in the synthesis of cell wall, particularly as calcium pectate. It is also needed during the formation of mitotic spindles.