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प्रश्न
What is the role of the liver and the pancreas respectively in the digestion of food?
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उत्तर
- Liver: It produces a green-yellow fluid called the bile which emulsifies fats making it easy to be digested. The bile also contains sodium bicarbonate which neutralises the acid of food coming from the stomach and makes it alkaline.
- Pancreas: It produces the digestive juice called the pancreatic juice which acts on carbohydrates, proteins, and fats and convert them into simpler units called glucose, amino acids and fatty acids respectively
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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 |
With which human organ system (or human systems) is the villi associated?
Pylorus is an opening from
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Is the dentition that of a carnivore or herbivore? Give a reason to support your answer.
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Name an animal possessing such a dentition.
Name the following
The organ into which the pancreatic juice and the bile juice are poured
Write down the explanation.
Explain the structure of tooth.
Identify the part of the digestive system which is vestigial in humans?
Match the two columns and select correct option.
| Column - I | Column - II | ||
| i. | Sphincter of Oddi | a. | Oesophagus and stomach |
| ii. |
Ileo-caecal sphincter |
b. | Stomach and small intestine |
| iii. | Pyloric sphincter | c | Ileum and caecum |
| iv. |
Gastro-oesophageal sphincter |
d. | Opening of hepato- pancreatic duct |
Cellulose-rich food substances are good source of roughage in human beings because ______.
