ANATOMY

GENERAL ANATOMY

DIGESTIVE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements about food as it enters the duodenum is incorrect?
A
Sugars are changed into glucose
B
Starch Is changed into maltose
C
Fats are absorbed
D
Proteins are changed into peptones
Explanation: 

Detailed explanation-1: -Crude emulsions of lipids enter the duodenum as fine lipid droplets and then mix with bile and pancreatic juice to undergo marked changes in chemical and physical form. Emulsification continues in the duodenum along with hydrolysis and micellization in preparation for absorption across the intestinal wall.

Detailed explanation-2: -Answer and Explanation: When fat enters the duodenum, the release of ‘cholecystokinin’ is signaled which causes the gallbladder to release ‘bile’. The meaning of ‘cholecysto’ is gallbladder and of ‘kinin’ is movement. Cholecystokinin is released due to the presence of fat in the duodenum.

Detailed explanation-3: -After foods mix with stomach acid, they move into the duodenum, where they mix with bile from the gallbladder and digestive juices from the pancreas. The absorption of vitamins, minerals, and other nutrients begins in the duodenum. Food passes from the stomach into the small intestine.

Detailed explanation-4: -When food moves into your duodenum, it mixes with digestive enzymes that your pancreas secretes. These enzymes break down the largest molecules of food, such as proteins and starches. They also neutralize stomach acid. Bile is a substance that breaks down the fats in foods.

There is 1 question to complete.