Question

Match the following:

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{I.}& \text{K}& \text{A}& \text{Stomatal opening}\\ \text{II.}& \text{Mo}& \text{B}& \text{Constituent of cell membrane}\\ \text{III.}& \text{P}& \text{C}& \text{Photolysis of water}\\ \text{IV.}& \text{Mn}& \text{D}& \text{Most free ion}\\ & & \text{E}& \text{Component of nitrogenase and nitrate reductase}\end{array}$

• A. $\begin{array}{cccc}\text{I}& \text{II}& \text{III}& \text{IV}\\ \text{A, D}& \text{E}& \text{B}& \text{C}\end{array}$
• B. $\begin{array}{cccc}\text{I}& \text{II}& \text{III}& \text{IV}\\ \text{A, E}& \text{D}& \text{C}& \text{B}\end{array}$
• C. $\begin{array}{cccc}\text{I}& \text{II}& \text{III}& \text{IV}\\ \text{A, E}& \text{D}& \text{B}& \text{C}\end{array}$
• D. $\begin{array}{cccc}\text{I}& \text{II}& \text{III}& \text{IV}\\ \text{A}& \text{D}& \text{C}& \text{B, E}\end{array}$

Answer 1

The correct option is A $\begin{array}{cccc}\text{I}& \text{II}& \text{III}& \text{IV}\\ \text{A, D}& \text{E}& \text{B}& \text{C}\end{array}$

Potassium ($K$) - Key role in stomatal movement and transpiration and are most free ion.

Molypdenum $\left(Mo\right)$ - Role as prosthetic group of nitrate reductase and nitrogenase in nitrogen metabolism.

Phosphorous $\left(P\right)$ - Very important in RNA, DNA (heredity), in phospholipid (cell membrane), NADP (co-enzyme), ATP (energy reactions).

Manganese $\left(Mn\right)$ - Essential for $O_2$ evolution and photolysis of water in light reaction.