Question 1

Which of the following best describes the difference between the parietal and visceral peritoneum in the intestines?

Accepted Answer

The parietal peritoneum lines the abdominal wall, while the visceral peritoneum covers the organs.

Question 2

Which organ is NOT considered an accessory organ of the digestive system?

Accepted Answer

Stomach

Question 3

A patient presents with jaundice and steatorrhea. Which disease of the GI tract is most likely responsible?

Accepted Answer

Pancreatitis

Question 4

Which of the following correctly matches the GI tract hormone with its primary function?

Accepted Answer

Cholecystokinin (CCK): stimulates pancreatic enzyme secretion

Question 5

Which enzyme is responsible for the breakdown of carbohydrates in the mouth?

Accepted Answer

Salivary amylase

Question 6

During protein digestion, which enzyme is first to act in the stomach?

Accepted Answer

Pepsin

Question 7

Which of the following best describes the process of absorption of monosaccharides in the small intestine?

Accepted Answer

Active transport via sodium-glucose symporters (SGLT1)

Question 8

A patient has a deficiency in bile production. Which digestive process will be most affected?

Accepted Answer

Emulsification and absorption of lipids

Question 9

Which of the following equations correctly represents the conversion of CO$$_2 in $$red blood cells during acid-base balance?

Accepted Answer

$$\mathrm{CO_2$ + H_2O \rightarrow H_2CO_3 \rightarrow H^+ + $$HCO_3$$^-}$$

Question 10

Which of the following is a function of the liver in digestion?

Accepted Answer

Production of bile for fat emulsification

Question 11

Which process is responsible for moving food through the GI tract?

Accepted Answer

Peristalsis

Question 12

Which of the following best describes the difference between the cephalic and gastric phases of digestion?

Accepted Answer

Cephalic phase is triggered by thought, sight, or smell of food; gastric phase is triggered by the presence of food in the stomach.

Question 13

Which of the following is a correct match between a polymer and its monomer?

Accepted Answer

Carbohydrate: monosaccharide

Question 14

A patient is unable to digest lactose due to a deficiency in which enzyme?

Accepted Answer

Lactase

Question 15

Which of the following is a function of the large intestine?

Accepted Answer

Absorption of water and electrolytes

Question 16

Which of the following best describes the role of pancreatic enzymes in digestion?

Accepted Answer

They complete the digestion of proteins, carbohydrates, and lipids in the small intestine.

Question 17

Which of the following is a correct description of the defecation reflex?

Accepted Answer

It is triggered by the stretching of the rectal wall, leading to relaxation of the internal anal sphincter.

Question 18

Which of the following correctly describes the process of emulsification?

Accepted Answer

Increasing the surface area of fat droplets for enzyme action

Question 19

Which of the following is a correct statement about the absorption of fatty acids in the small intestine?

Accepted Answer

Fatty acids are packaged into chylomicrons and absorbed into lymphatic vessels.

Question 20

Which of the following is the correct order of layers in the GI tract wall from innermost to outermost?

Accepted Answer

Mucosa, submucosa, muscularis, serosa

Digestive System and Metabolism: Anatomy & Physiology II Exam 4 Review

Study Guide - Practice Questions