3.1 Structure And Function Of The Digestive System

Question 1

What is the primary function of the digestive system?

Answer 1

To break down food into nutrients that can be absorbed by the body.

Question 2

True or False: The mouth is the first part of the digestive system.

Answer 2

True

Question 3

Fill in the blank: The _____ is responsible for the absorption of most nutrients.

Answer 3

small intestine

Question 4

What organ produces bile?

Answer 4

Liver

Question 5

Which part of the digestive system is primarily responsible for water absorption?

Answer 5

Large intestine

Question 6

What is the role of the stomach in digestion?

Answer 6

To mechanically and chemically break down food.

Question 7

Multiple Choice: Which enzyme begins the digestion of carbohydrates in the mouth? A) Pepsin B) Amylase C) Lipase

Answer 7

B) Amylase

Question 8

What is the function of the esophagus?

Answer 8

To transport food from the mouth to the stomach.

Question 9

True or False: The pancreas produces digestive enzymes and hormones.

Answer 9

True

Question 10

Fill in the blank: The _____ connects the throat to the stomach.

Answer 10

esophagus

Question 11

What is the primary function of the gallbladder?

Answer 11

To store and concentrate bile.

Question 12

Multiple Choice: Which of the following is NOT part of the digestive system? A) Stomach B) Heart C) Pancreas

Answer 12

B) Heart

Question 13

What type of muscle is found in the walls of the digestive tract?

Answer 13

Smooth muscle

Question 14

True or False: The large intestine is shorter than the small intestine.

Answer 14

False

Question 15

What is the role of villi in the small intestine?

Answer 15

To increase the surface area for absorption of nutrients.

Question 16

Fill in the blank: The _____ is where the majority of chemical digestion occurs.

Answer 16

small intestine

Question 17

What is peristalsis?

Answer 17

The wave-like muscle contractions that move food through the digestive tract.

Question 18

Multiple Choice: Which vitamin is produced by bacteria in the large intestine? A) Vitamin A B) Vitamin K C) Vitamin C

Answer 18

B) Vitamin K

Question 19

What is the main function of the rectum?

Answer 19

To store feces until they are excreted.

Question 20

True or False: Saliva contains enzymes that aid in digestion.

Answer 20

True

Question 21

What is the primary purpose of chewing food?

Answer 21

To mechanically break it down and mix it with saliva.

Question 22

Fill in the blank: The _____ secretes hydrochloric acid to aid in digestion.

Answer 22

stomach

Question 23

What is the difference between mechanical and chemical digestion?

Answer 23

Mechanical digestion involves physical breakdown of food, while chemical digestion involves enzymatic breakdown.

Question 24

Multiple Choice: Which organ is primarily involved in detoxifying chemicals? A) Pancreas B) Liver C) Gallbladder

Answer 24

B) Liver

Question 25

What is chyme?

Answer 25

The semi-liquid mass of partially digested food that moves from the stomach to the small intestine.

Question 26

True or False: The digestive system is responsible for the elimination of waste products.

Answer 26

True

Question 27

What is the primary role of digestive enzymes?

Answer 27

To break down macromolecules into smaller molecules for absorption.