Question

An important essential element necessary in the plants for protein synthesis is

• A. Calcium
• B. Phosphorus
• C. Magnesium
• D. Nitrogen

Answer 1

The correct option is D Nitrogen

Nitrogen is an essential constituent of amino acids. All amino acids carry nitrogen in the amino group bonded to $\alpha$-carbon atom. Hence, the name amino acids. As proteins are biopolymers of amino acids. Protein synthesis cannot be carried out in absence of nitrogen.

So, the correct answer is 'Nitrogen'