Question

(a) Define a nutrient. Name four important nutrients present in our food.
(b) What are the various types of heterotrophic nutrition?

Answer 1

(a) A nutrient is an organic or inorganic substance required for the maintenance of life and survival of the living organisms. Four important nutrients present in our food are carbohydrates, proteins, vitamins and fats.

(b) The various types of heterotrophic nutrition are saprophytic, parasitic and holozoic nutrition.