Question

About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and

a) sulphur and magnesium

(b) magnesium and sodium

(c) calcium and phosphorus

(d) phosphorus and sulphur.

________ explanation also required!

Answer 1

Phosphorus and sulfur

Phosphorus is a constituent of energy carriers(ATP) phospholipids kf membrane DNA and RNA etc.

Sulphur present in amino acids cystiene and methionine

Hope it helps