Question

Q1. Which monosaccharide uses secondary active co-transport with sodium a SGLT for absorption across the apical membrane of the small intestine?

A. Maltose

B. Glucose

C. Sucrose

D. Lactose

Q2. Gastric motility and/or secretions are influenced by all of the follwoing except?

A.peptides

B. Gastrin

C. The gastroenteric reflex

D. Gastric distention

E. The enterogastic reflex

Q3. Which of the following is secreted by the pancreas?

A. Bicabonate

B. Active pancreatic peptidases

C. Maltase

D. Secretin

Q4. Enterokinase is ________________________________?

A. A brush border enzyme that activate all pancreatic enzymes

B. A brush border enzyme that initiates the activation of pancreatic

C. A duodenal enzyme that phosphorylates and activates brush border enzymes

Answer 1

1. ANSWER: Glucose.

Reason: Glucose ia a monosaccharide thay uses sodium cortransporter to enter into the cell.

2. ANSWER: enterogastric reflex.

Reason: It is a nervous reflex whereby stretching the walls of esophagus would inhibit the gastric motility and its secretions.

3. ANSWER: Active pancreatic peptidases.

Reason: Pancratic protease like trypsin and chymotrypsin are secreted by the pancreas.

4. ANSWER: A brush border enzyme that activates the pancreatic enzymes.

Reason: Enterokinase also called enteropeptidase are the the brish border enzymes that helps in the activation of pancreatic enzymes.