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प्रश्न
Answer in detail.
Liver does not secrete any enzymes yet it helps indigestion. How?
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उत्तर
The liver does not secrete any enzyme yet it helps in digestion it secretes bile which helps in digestion of fats by breaking down fats into tiny droplets to provide a larger surface area for the enzymes to act. This process is called the emulsification of fats. Bile secreted by the liver is stored in the gall bladder. Bile provides an alkaline medium in the duodenum for the action of enzymes of the pancreatic juice
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संबंधित प्रश्न
How do carbohydrates, fats and proteins get digested in human beings?
Which of the following component of our food is digested by an enzyme which is present in saliva as well as in pancreatic juice?
(a) proteins
(b) fat
(c) minerals
(d) carbohydrate
The first enzyme to mix with food in the digestive tract is:
(a) pepsin
(b) cellulose
(c) amylase
(d) trypsin
Why is the small intestine the most important organ of the digestive system?
Define the following term :
Pylorus
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.
Give Scientific reasons:
Consuming iodized salt in day to day diet is essential.
Write short answers
What is peristalsis?
A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains:
Solve the crossword given as Figure.
| Across | Down | ||
| 1. | Cream-coloured digestive gland | 2. | Feeds with the help of pseudopodia |
| 3. | Undigested excretory solid residues | 6. | Total number of molars in one jaw of an adult |
| 4. | Organ that mixes saliva with the food | 8. | Largest gland |
| 5. | Point of defecation | 9. | Watery secretion in the mouth |
| 7. | Stored in gall bladder | 11. | A ruminant |
| 10. | Finger-like outgrowth in the small intestine | 12. | Form of food chewed by ruminants |
| 13. | Kind of taste buds | ||
| 14. | Kills bacteria in the stomach | ||
