Class 9 FRANK Solutions Biology Chapter 15: Nutrition in Man

At TopperLearning, get Frank Solutions for ICSE Class 9 Biology Chapter 15 Nutrition in Man prepared by our biology experts. During your revision, read the chapter solutions to quickly skim through concepts like assimilation, heterotrophs, scavenger, roughage and more. Find out why proteins are used by people as a body-building food.

In the Frank solutions ICSE Class 9 Biology, you will also find answers on why water is important for the human body. You may also revise the chapter questions and answers with our Selina solutions. Other study materials that can assist in increasing your exam score include online practice tests, videos, question paper solutions and more are available online 24x7, in a structured format, on our online education portal.

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139

Nutrition in Man Exercise 138

Solution 1

Carbohydrates provide energy and warmth to our body.

Solution 2

Sources of Vitamin C are Lemon and carrot and sources of Vitamin A are Green vegetables and egg yolk.

Solution 3

Vitamin C

Solution 4

Pigs and crows

Solution 5

Carbohydrates

Solution 6

Roughage

Solution 7

Assimilation

Solution 8

Fats

Solution 9

(a) Carnivores are flesh-eating animals that eat other animals. Example - Snakes, Lion, tiger, vulture
(b) Omnivores are animals that feed on both animals and plants. Example - crows, certain bears.
(c) Scavenger is any animal that feeds on refuse and other decaying organic matter. Example - vultures, dung beetle.

Solution 10

Solution 11

Food is a mixture of nutritive substances which when taken and incorporated into the body tissues provide materials for energy, repair, growth, reproduction, regulation of life processes and resistance to diseases.

Solution 12

Proteins are used in the synthesis of new protoplasm to be utilized in growth and tissue repair. Hence they are called body building foods.

Solution 13

(a) Night-blindness
(b) Protein
(c) Vitamin D
(d) Insectivore

Solution 14

(a) False
(b) True
(c) True
(d) False
(e) True

Nutrition in Man Exercise 139

Solution 15

Water is necessary for our body because:
(i) Water acts as solvent for many organic and inorganic compounds
(ii) Water facilitates the movement of food materials, waste products and other chemical substances in the cytoplasm and circulatory process.
(iii) It plays an important role in regulating body temperature and osmotic pressure of the body fluids.
(iv) Water serves as good medium for various metabolic reactions.

Solution 16

The undigested fibrous material present in the food is called roughage. Raw vegetables, and bran are examples of roughage.

Solution 17

(a) energy
(b) glycogen
(c) fatty acid, glycerol
(d) sucrose, maltose

Solution 18

(a) The condition where people become weak and sick due to insufficient and unbalanced diet is referred to as malnutrition.
(b) Saprozoic nutrition refers to nutrition in which animals feed on dead or decaying matter.
(c) Vitamins are organic compounds regularly required in minute quantities in the diet for normal metabolism, health and growth.

Solution 19

(a) Milk
(b) Sugarcane
(c) Plants
(d) Yellow and green vegetables

Solution 20

(a) Kwashiorkor develops in children whose diet is deficient in proteins even if sufficient carbohydrates and fats are consumed. This disease is common among infants and children up to 3 years old. The symptoms of Kwashiorkor include reduced body weight, slurred growth, protruding belly and thin legs.
(b) Marasmus is a form of prolonged protein energy malnutrition. It affects infants under one year of age. The symptoms of Marasmus include irreversible muscle degeneration, dry, wrinkled skin, prominent ribs and thin legs.

Solution 21

(a) Deficiency of iron leads to anaemia.
(b) Deficiency of iodine leads to goitre.

Solution 22

(i) (a) 500 gm
(ii) (d) food
(iii) (b) rice
(iv) (b) Carrot
(v) (a) A, D and E
(vi) (d) K
(vii) (c) Protein
(viii) (a) C

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