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प्रश्न
What is the role of saliva in the digestion of food?
उत्तर
The role of saliva in the digestion of food:
- It moistens the food for easy swallowing.
- It contains a digestive enzyme called salivary amylase, which breaks down starch into sugar.
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 |
What substances are contained in pancreatic juice? What are their functions?
Mention two ways in which the ileum of the mammal is adapted for the absorption of digested food.
Define the following term:
Egestion
Put the following processes in their correct sequence of occurrence during digestion.
peristalsis; tongue pushes the food; grinding and mixing saliva; cutting and tearing of food
Define with examples: Autotrophs
State one difference in nutrition: Autotroph and Heterotroph
Describe the human alimentary canal.
State whether the following statements are True or false: Enteropeptidase activates pepsinogen into pepsin.
Write down the explanation.
Explain the structure of tooth.
The process by which the body removes waste is called ______.
Analogy
Enzymes: Digestive glands:: _______: Endocrine glands.
Write any two functions of digestive system.
Bile helps in the digestion of ______.
Describe the alimentary canal of man
(i)______ and (ii)______ form the common bile duct.
Explain the role of the mouth in digestion of food.
Digestion of food starts in ______ and gets completed in ______.
What are different types of cells present in the crypts of Lieberkuhn?
Give two reasons, why bile juice is considered to be an important secretion of liver in the process of digestion?
