9.2 Digestion of Carbo. , Protein and lipids in the small intestine

Question 1

What does the small intestine consists of ?

Answer 1

Duodenum –> Jejunum—> ileum

Question 2

What is duodenum ?
What does it receives ?

Answer 2

Duodenum is the first part of the small intestine which receives the chyme from the stomach . Receives bile produced by the liver and pancreatic juice secreted by the pancreas.

Question 3

Optimum pH for the digestion in the small intestine ?

Answer 3

pH 8.5

Question 4

Where is the start of the digestion of lipid ?

Answer 4

In the duodenum

Question 5

What does the pancreatic juice contain ?

Answer 5

Pancreatic amylase , lipase , trypsin

Question 6

Pancreatic juice is transported from the pancreas to duodenum by ?

Answer 6

Pancreatic duct

Question 7

The bile is transported from the gall bladder to the duodenum by ?

Answer 7

Bile duct

Question 8

Function of bile :
1. Ne____

Answer 8

Neutralises the acid in the chyme from the stomach

Question 9

Function of bile :
2.Prepare___

Answer 9

Prepare an alkaline medium for enzyme action in the duodenum

Question 10

Function of bile :
3. Emu____

Answer 10

Emulsifies fats , which the fats are broken down into tiny droplets to increase the surface area for the action of lipase enzyme .
Speeds up the digestion of fats .

Question 11

Function of lipase :

Answer 11

Hydrolyses fats into glycerol and fatty acids .

Question 12

Function of pancreatic amylase :

Answer 12

Hydrolyses starch into maltose
(same as salivary amylase)

Question 13

Function of trypsin :

Answer 13

Hydrolyses polypeptides into peptides