Certified Gastroenterology RN GI Anatomy and Pathophysiology 4

Question 1

Which enzyme, secreted as pepsinogen, initiates protein digestion in the stomach?

Accepted Answer

Pepsin

Answer

Pepsinogen is converted to pepsin by acid and begins protein digestion.

Question 2

The pancreatic enzyme responsible for carbohydrate digestion is:

Accepted Answer

Amylase

Answer

Pancreatic amylase breaks down carbohydrates in the small intestine.

Question 3

Bile is produced by which organ?

Accepted Answer

Liver

Answer

The liver produces bile, which the gallbladder stores and concentrates.

Question 4

The primary role of bile in digestion is to:

Accepted Answer

Emulsify fats

Answer

Bile salts emulsify fats to aid enzymatic lipid digestion and absorption.

Question 5

Obstruction of the common bile duct by a gallstone most directly causes:

Accepted Answer

Obstructive jaundice

Answer

Blocked bile flow causes bilirubin backup, producing obstructive jaundice.

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