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Nutrition in Animals
Which part of the digestive canal is involved in:
(i) absorption of food ____.
(ii) chewing of food ____.
(iii) killing of bacteria ____.
(iv) complete digestion of food ____.
(v) formation of faeces ____.
(i) absorption of food __small intestine__
(ii) chewing of food __buccal cavity__
(iii) killing of bacteria __stomach__
(iv) complete digestion of food __small intestine__
(v) formation of faeces __large intestine__
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Match the items of Column I with those given in Column II:
| Column I | Column II |
| Food components | Product(s) of digestion |
| Carbohydrates | Fatty acids and glycerol |
| Proteins | Sugar |
| Fats | Amino acids |
What are villi? What is their location and function?
Where is the bile produced? Which component of the food does it help to digest?
Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.
Why do we get instant energy from glucose?
Which part of the digestive canal is involved in:
(i) absorption of food ____.
(ii) chewing of food ____.
(iii) killing of bacteria ____.
(iv) complete digestion of food ____.
(v) formation of faeces ____.
Write one similarity and one difference between the nutrition in Amoeba and human beings.
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 |
Label the following figure of the digestive system.
A part of human digestive system
Can we survive only on raw, leafy vegetables/grass? Discuss.
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