Question

One of the following elements which is of not much of importance to plants, is

• A. $Ca$
• B. $Zn$
• C. $1$
• D. $Na$

Answer 1

Answer: (C)

$1$

Calcium plays an important role in plants. It helps to form middle lamella and holds the cell wall together. It reduces the salinity of the soil.

Zinc forms an important constituent of protein and enzymes of the plant. It also plays an important role internodal elongation.

Sodium is used to maintain the potential gradient for several metabolic processes in the plants.

Iodine has a very minimal role in plants. Brown algae as Laminaria and Sargassum only store abundant iodine.