Advertisements
Advertisements
प्रश्न
Food are classified into three groups on the basis of the function they perform in our body. Name the three categories, and briefly give their functions. Also give their two sources each.
उत्तर
Function
1. energy giving food
2. bodybuilding food
3. regulatory and protective foods
Nutrient
1. carbohydrates and fats
2. proteins
3. vitamins and minerals.
Food
1. cereals, fats, sugar
2. pulses, milk, meat chicken
3. fruits and vegetables
APPEARS IN
संबंधित प्रश्न
Match the items of Column I with suitable items in Column II.
| Column I | Column II | ||
| (a) | Salivary gland | (i) | Bile juice secretion |
| (b) | Stomach | (ii) | Storage of undigested food |
| (c) | Liver | (iii) | Saliva secretion |
| (d) | Rectum | (iv) | Acid release |
| (e) | Small intestine | (v) | Digestion is completed |
| (f) | Large intestine | (vi) | Absorption of water |
| (vii) | Release of faeces |
The process of digestion of food in humans begins in:
(a) stomach
(b) food pipe
(c) mouth
(d) small intestine
When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then from its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache.
(a) What are (i) organisms A, and (ii) substance B?
(b) What are (i) part C, and (ii) part D, of tooth known as?
(c) By what name are the holes E in the tooth known?
(d) Name the part F of the tooth.
(e) What will happen if organisms A reach part F of the tooth known?
Prepare a possible vegetarian menu for your dinner which would provide all the necessary nutrients.
Give any four reasons why water is necessary in our body.
Answer the following question.
Give two reasons to explain why the absorption of digested food occurs mainly in the small intestine.
Write the function of the following in the human alimentary canal:
HCl in stomach
Describe the digestion of food in small intestine.
Correct the spellings: Disegion
Correct the spellings: Bilirubin
