a short speech on food
Answers
A food may be defined as any substance which when taken into the body can be utilized to provide heat or energy, to maintain and compensate wear and tear of tissues and to regulate body processes.
It provides energy in the form of heat, for mechanical work etc. Even while the body is at rest some energy is utilized on respiratory, circulatory and other body processes.
(ii) It is essential for the growth of the body and for the repair of daily wear and tear of tissues. Even after the growth is stopped, the body continues to change throughout life and tissues are also changed.
(iii) It is essential for maintenance and regulation of tissue functions, and body temperature.
(iv) It provides the power to the body to build resistance against infections and diseases.
(v) It is essential to satisfy the hunger.