Question 1

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

Accepted Answer

Large intestine

Question 2

A muffin travels through the gastrointestinal (GI) tract. Which organ does it NOT pass through?

Accepted Answer

Gallbladder

Question 3

Which statement best describes the function of peristalsis in the digestive system?

Accepted Answer

Muscular waves that move food through the GI tract

Question 4

Which enzyme is responsible for the chemical digestion of carbohydrates?

Accepted Answer

Amylase

Question 5

Which organ is responsible for storing bile?

Accepted Answer

Gallbladder

Question 6

Which process involves the breakdown of food into absorbable molecules using acids and enzymes?

Accepted Answer

Chemical digestion

Question 7

Which of the following statements correctly distinguishes accessory organs from organs of the GI tract?

Accepted Answer

Food passes through organs of the GI tract but does not enter accessory organs.

Question 8

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

Accepted Answer

Absorption of water and excretion of waste products

Question 9

If a person’s pancreas fails to secrete digestive enzymes, which process would be most directly affected?

Accepted Answer

Chemical digestion

Question 10

Which of the following best describes the role of the small intestine in digestion?

Accepted Answer

Absorbs nutrients into the blood and lymph

Question 11

Which of the following is an example of mechanical digestion?

Accepted Answer

Churning and physically breaking up food in the stomach

Question 12

Which organ produces digestive enzymes that act on all three macronutrients (carbohydrates, proteins, and fats)?

Accepted Answer

Pancreas

Question 13

A patient has a blockage in their esophagus. Which process would be most directly impaired?

Accepted Answer

Peristalsis moving food from mouth to stomach

Question 14

Which of the following statements about absorption is correct?

Accepted Answer

It is the movement of nutrients and water into the blood or lymph

Question 15

Which digestive process uses both acids and enzymes to break down food?

Accepted Answer

Chemical digestion

Question 16

If the liver is damaged and cannot produce bile, which nutrient’s digestion would be most affected?

Accepted Answer

Fats

Question 17

Which of the following is a correct sequence of organs that food passes through in the GI tract?

Accepted Answer

Mouth → Esophagus → Stomach → Small intestine → Large intestine

Question 18

Which of the following is NOT a function of the stomach?

Accepted Answer

Absorption of most nutrients

Question 19

Which statement best describes the difference between mechanical and chemical digestion?

Accepted Answer

Mechanical digestion physically breaks down food, while chemical digestion uses acids and enzymes to break molecules into smaller units.

Question 20

A patient is unable to produce saliva due to a medical condition. Which digestive process would be most affected?

Accepted Answer

Chemical digestion of carbohydrates in the mouth

Overview of the Digestive System: Structure and Function

Study Guide - Practice Questions