B3 The Digestive System

Question 1

What is the primary function of the digestive system?

Answer 1

To break down food into nutrients that the body can absorb.

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 process of chewing food is called __________.

Answer 3

mastication

Question 4

What enzyme in saliva begins the digestion of carbohydrates?

Answer 4

Amylase

Question 5

What is the role of the esophagus in the digestive system?

Answer 5

To transport food from the mouth to the stomach.

Question 6

Multiple choice: Which organ produces bile?

Answer 6

Liver

Question 7

What is the function of the stomach in digestion?

Answer 7

To break down food using acids and enzymes.

Question 8

True or False: The small intestine is where most nutrient absorption occurs.

Answer 8

True

Question 9

What are the three parts of the small intestine?

Answer 9

Duodenum, jejunum, ileum

Question 10

Fill in the blank: The __________ is responsible for water absorption and the formation of feces.

Answer 10

large intestine

Question 11

What is the role of the pancreas in the digestive system?

Answer 11

To produce digestive enzymes and bicarbonate.

Question 12

Multiple choice: Which part of the digestive system is primarily involved in the absorption of nutrients?

Answer 12

Small intestine

Question 13

What is the term for the wave-like muscle contractions that move food through the digestive tract?

Answer 13

Peristalsis

Question 14

True or False: The gallbladder stores bile produced by the liver.

Answer 14

True

Question 15

What is the main function of the rectum?

Answer 15

To store feces before excretion.

Question 16

Fill in the blank: The __________ is a muscular valve that controls the passage of food from the stomach to the small intestine.

Answer 16

pyloric sphincter

Question 17

What is the function of villi in the small intestine?

Answer 17

To increase the surface area for absorption.

Question 18

Multiple choice: Which of the following is NOT a part of the digestive system?

Answer 18

Kidney

Question 19

What role do probiotics play in the digestive system?

Answer 19

They help maintain a healthy gut microbiome.

Question 20

True or False: Fiber is important for digestive health.

Answer 20

True

Question 21

What is the term for the breakdown of food into smaller components?

Answer 21

Digestion

Question 22

Fill in the blank: The __________ helps in the emulsification of fats.

Answer 22

bile

Question 23

What is the primary purpose of gastric acid?

Answer 23

To kill bacteria and aid in digestion.

Question 24

Multiple choice: Which structure prevents food from entering the trachea?

Answer 24

Epiglottis

Question 25

What is the role of digestive enzymes?

Answer 25

To break down macromolecules into smaller molecules.

Question 26

True or False: The liver detoxifies substances in the body.

Answer 26

True

Question 27

What is the final stage of digestion?

Answer 27

Excretion of waste products.

Question 28

What are the three main types of food molecules?

Answer 28

Carbohydrates, proteins, and lipids.

Question 29

True or False: Proteins are made up of amino acids.

Answer 29

True.

Question 30

Fill in the blank: The main function of carbohydrates in the body is to provide ______.

Answer 30

energy.

Question 31

Which food molecule is primarily responsible for storing energy?

Answer 31

Lipids.

Question 32

What are the building blocks of proteins called?

Answer 32

Amino acids.