CBSE Class 10 Answered

a. Nutrition: The process by which the living organisms obtain food and utilise the food materials necessary for their survival, growth, and repair of worn out tissues is called nutrition.

b. Nutrients: Substances which supply nourishment to living organisms from its surroundings and use it as an energy source or for biosynthesis of body constituents are called nutrients.

c. Proteins: Proteins are macromolecules which are made of long chains of tiny units called amino acids.

d. Aerobic respiration: The process in which the food glucose is converted into energy in the presence of oxygen is called aerobic respiration.

e. Glycolysis: Glycolysis is a process in which glucose is broken down into pyruvate.