Question 1

About pepsins:

Accepted Answer

A) There are 5 types of exopeptidase enzymes. 
B) They are secreted by endocytosis as active enzymes. 
C) They are incapable of autoactivation 
D) Their optimum pH of action is 1.6- 3.2. 
A) There are 5 types of exopeptidase enzymes. 
B) They are secreted by endocytosis as active enzymes. 
C) They are incapable of autoactivation 
D) Their optimum pH of action is 1.6- 3.2.

Question 2

The secretion of the intrinsic factor occurs in :

Accepted Answer

A) Parietal cells of the stomach. 
B) Chief cells of the stomach. 
C) Upper duodenum. 
D) Beta cells of pancreas. 
A) Parietal cells of the stomach. 
B) Chief cells of the stomach. 
C) Upper duodenum. 
D) Beta cells of pancreas.

Question 3

Pepsin, secreted by the gastric mucosa:

Accepted Answer

A) Continues to act in the neutral medium of the duodenum. 
B) Is proteolytic on the mucosal surface, in the alkaline medium provided by the mucus secreted by the surface cells of the stomach. 
C) Is synthesized within the chief cells. 
D) Doesnot increased in concentration in response to the mental stimuli found in the so'called cephalic phase of gastric digestion 
A) Continues to act in the neutral medium of the duodenum. 
B) Is proteolytic on the mucosal surface, in the alkaline medium provided by the mucus secreted by the surface cells of the stomach. 
C) Is synthesized within the chief cells. 
D) Doesnot increased in concentration in response to the mental stimuli found in the so'called cephalic phase of gastric digestion

Question 4

Under the normal conditions, the bulk of gastric secretions are produces:

Accepted Answer

A) Before the food is ingested and while the pleasure of it's ingestion is anticipated 
B) While the food stays in the stomach. 
C) After the food has entered the duodenum. 
D) During fasting periods. 
A) Before the food is ingested and while the pleasure of it's ingestion is anticipated 
B) While the food stays in the stomach. 
C) After the food has entered the duodenum. 
D) During fasting periods.

Question 5

Which of the following statement is true?:

Accepted Answer

A) The intrinsic factors is secreted by the parietal cells of the gastric mucosa. 
B) The gastric juice can't digest the gastric mucosa because the cell membranes contain a pepsin activator. 
C) The stomach normally absorbs about 30% of the ingested food. 
D) The secretion of the gastric juice is associated with increased H? in the blood. 
A) The intrinsic factors is secreted by the parietal cells of the gastric mucosa. 
B) The gastric juice can't digest the gastric mucosa because the cell membranes contain a pepsin activator. 
C) The stomach normally absorbs about 30% of the ingested food. 
D) The secretion of the gastric juice is associated with increased H? in the blood.

About pepsins:

The secretion of the intrinsic factor occurs in :

Pepsin, secreted by the gastric mucosa:

Under the normal conditions, the bulk of gastric secretions are produces:

Which of the following statement is true?:

Gastrointestinal Hormones and Functions

Digestive Physiology

Gastric Secretion and Vomiting

Pancreatic and Liver Secretions and Functions

Digestive System: Bile Secretion, Gallbladder Functions, and Succus Entericus Absorption

Absorption and Motility in the Small Intestine

Digestive System Motility and Secretion

Filters

Exam 3: Gastric Secretion and Functioning of the Stomach

About pepsins:

The secretion of the intrinsic factor occurs in :

Pepsin, secreted by the gastric mucosa:

Under the normal conditions, the bulk of gastric secretions are produces:

Which of the following statement is true?:

Gastrointestinal Hormones and Functions

Digestive Physiology

Gastric Secretion and Vomiting

Pancreatic and Liver Secretions and Functions

Digestive System: Bile Secretion, Gallbladder Functions, and Succus Entericus Absorption

Absorption and Motility in the Small Intestine

Digestive System Motility and Secretion

Filters