Nutrition Short Answer Biology Class-9 ICSE Selina Publishers

Nutrition Short Answer Biology Class-9 ICSE Selina Publishers Solutions Chapter-10. Step By Step ICSE Selina Concise Solutions of Chapter-10 Nutrition (Nutrition in General) with Exercise-10 including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type and Structured/Application Questions Solved Visit official Website CISCE for detail information about ICSE Board Class-9.

Nutrition Exe-10 Short Answer Biology Class-9 ICSE Concise Selina Publishers

Board ICSE
Publications Selina Publication
Subject Biology
Class 9th
Chapter-10 Nutrition (Nutrition in General)
Book Name Concise
Topics Solution of C. Short Answer Type
Academic Session 2023-2024

C. Short Answer Type 

Nutrition (Nutrition in General) Class-9 Biology Concise Solutions  

Page 107

Question 1.

Define the terms:

(a) Balanced diet

(b) Malnutrition

(c) Food

(d) Nutrients

(e) Kwashiorkor


(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.

Question 2.

Give two examples of each of the following and their usefulness, if any, in our body.

(i) Monosaccharides

(ii) Disaccharides

(iii) Polysaccharides


Example Uses
(i) Mono
of energy
for maintaining
a healthy body
(ii) Di
good health
Further broken
down to produce glucose molecule which
provides energy
to the
(iii) Poly
1.Cellulose Acts as roughage which prevents constipation
2. Glycogen Reserve carbohydrate in humans
and stored
in liver
and muscles


Question 3.

Write the important roles of the following food components in our body.

(a) Cellulose

(b) Fat

(c) Proteins

(d) Calcium

(e) Phosphorus


(a) Cellulose provide roughage for proper functioning of gut.

(b) Fat provides energy and helps to repair tissues.

(c) Protein builds as well as repairs cells and tissues.

(d) Calcium is constituent of bones and enamel. It is required for muscle contraction and clotting of blood.

(e) Phosphorus participates in synthesis of nucleic acid, ATP, NADP, bones, enamel. It helps in muscle contraction and conduction of nerve impulse.

Question 4.

A doctor advises a bone patient to include more of milk and milk products in his everyday food. Why so?


Bones are generally made of calcium and iron. Milk and milk products are rich in calcium and Vitamin A. That is why, a doctor advises a bone patient to include more of milk and milk products in his everyday food to make his bones and teeth strong. Milk also prevents oxidation of Vitamin A. Calcium present in milk even helps in clotting of blood. Milk, is therefore a wholesome food.

—  : End of Nutrition (Nutrition in General) C. Short Answer Class-9 ICSE Biology Solutions :–

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