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प्रश्न
What is roughage? Give two examples.
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उत्तर
Roughage is a dietary fiber that largely consists of cellulose. It cannot be digested by our body as our body does not contain cellulose-digesting enzymes.
Examples of roughage:
- Fruits
- Green leafy vegetables
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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 is the name of the opening in the human body through which undigested food is thrown out?
What is trypsin?
Name the following:
An enzyme secreted by gastric glands in stomach which acts on proteins.
Name the substance on which the following enzymes act in the human digestive system:
Trypsin
Which of the following has the longest small intestine?
With which human organ system (or human systems) is the villi associated?
List the enzymes and their action on food in the stomach and intestine.
Study the diagram given below and then answer the question that follows:
Describe the structure of the part labelled '3'.
Define the following term:
Digestion
Fill in the blanks.
Removal of undigested food is called ________.
What do you mean by nutrition?
State one difference in nutrition: Holozoic and Saprozoic nutrition
Describe protein digestion in the human.
Correct the spellings: Reninne
Give a reason.
Food becomes acidic in the stomach.
Sketch and label a diagram of the digestive system and describe it in your own words.
Name the salivary glands in our mouth?
What happens when we swallow our food?
What is the significance of the emulsification of fats?
