Question

Protoplasmic elements are

• A. C, H, O, P, N, S
• B. C, H, O, Fe, N
• C. N, S, Fe, P, K
• D. Fe, Mg, Ca, N, P

Answer 1

The correct option is A C, H, O, P, N, S

Plants require a number of mineral elements for optimum growth. These mineral elements perform different functions in plants. All the major biomolecules of cell protoplasm - carbohydrates, proteins, fats, nucleic acids can be synthesized by basically few mineral elements, like carbon, hydrogen, oxygen, nitrogen, phosphorous and sulphur. Hence, these are called as framework or protoplasmic elements.