Multiple choice

The essential mineral for the formation of body protein is

  1. Sodium

  2. Iron

  3. Sulphur

  4. Potassium

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sulphur is a critical component of two proteinogenic amino acids: cysteine and methionine. These sulphur-containing amino acids are essential for protein synthesis. While sodium, iron, and potassium are vital minerals, they are not structural components of amino acids themselves.