Biology
Define the terms:
(a) Balanced diet
(b) Malnutrition
(c) Food
(d) Nutrients
(e) Kwashiorkor
Answer
(a) Balanced diet — A balanced diet is one which contains all the principal constituents of food in proper quantity so that it provides sufficient number of calories.
(b) Malnutrition — Malnutrition is the condition in which a person suffers due to an unbalanced diet. It includes both deficiency as well as an excess of nutrients in a person's diet.
(c) Food — Food is any substance which we eat or drink, and which contains the nutrients.
(d) Nutrients — The components of food that provide essential organic and inorganic compounds to our body are called Nutrients.
(e) Kwashiorkor — Kwashiorkor is a severe protein deficiency disease usually affecting young children and marked by Oedema of the feet and face, protruding belly, stunted growth and other symptoms.
Related Questions
Identify the deficiency diseases with the help of the clues given below :
(a) Delay in blood clotting time.
(b) Swelling of the thyroid gland in the neck region.
(c) Poor mental and physical growth in children.
(d) Poor vision in dim light.
(e) Dryness of the cornea and ulceration in the eye.
Complete the following:
(a) Glucose + …………… → Lactose
(b) Glucose + Glucose → ……………
(c) …………… + Fructose → Sucrose
(d) (C6H10O5)n → ……………
(e) Amino acid1 + Amino acid2 + Amino acid3 + Amino acidn→ ……………
Give two examples each of the following and their usefulness, if any, in our body.
- Monosaccharides
- Disaccharides
- Polysaccharides
Write the important roles of the following food components in our body.
(a) Cellulose
(b) Fat
(c) Proteins
(d) Calcium
(e) Phosphorus