Question

The most abundant element present in the plants is

• A. Carbon, hydrogen and oxygen
• B. Nitrogen, phosphorus and potassium
• C. Calcium, magnesium and sulphur
• D. Carbon, nitrogen and hydrogen

Answer 1

The correct option is A Carbon, hydrogen and oxygen

Most abundant biomolecules in plants are carbohydrates, which are organic compounds made up of carbon, hydrogen and oxygen. Hence, most abundant elements in plants are carbon, hydrogen and oxygen. They are also called hydrates of carbon because this name reflects their chemical composition. Cellulose and starch are arguably the most abundant carbohydrates in plants.