Digestive System

Question 1

What is the process of breaking down food into smaller molecules so the body can absorb nutrients?

Answer 1

Digestion

Question 2

What is the enzyme in saliva that begins breaking down carbohydrates?

Answer 2

Amylase

Question 3

What muscular tube connects the mouth to the stomach and moves food using peristalsis?

Answer 3

Esophagus

Question 4

What is the name of the muscular contractions that push food through the digestive system?

Answer 4

Peristalsis

Question 5

What acid is found in the stomach and helps break down food?

Answer 5

Hydrochloric acid

Question 6

What is the soupy mixture of partially digested food in the stomach called?

Answer 6

Chyme

Question 7

What organ produces bile to break down fats?

Answer 7

Liver

Question 8

What organ stores bile and releases it into the small intestine when needed?

Answer 8

Gallbladder

Question 9

What is the primary function of the small intestine?

Answer 9

Absorbing nutrients

Question 10

What tiny finger-like structures in the small intestine increase surface area for absorption?

Answer 10

Villi

Question 11

What organ absorbs water and prepares waste for elimination?

Answer 11

Large intestine

Question 12

What is the name of the beneficial bacteria that help digest food in the large intestine?

Answer 12

Gut microbiota

Question 13

What is the final section of the large intestine where waste is stored before leaving the body?

Answer 13

Rectum

Question 14

What is the opening where waste exits the digestive system?

Answer 14

Anus

Question 15

What digestive organ produces insulin and other enzymes to help break down food?

Answer 15

Pancreas

Question 16

What is the first part of the small intestine where digestive enzymes and bile are released?

Answer 16

Duodenum

Question 17

What protects the stomach lining from being damaged by its own acid?

Answer 17

Mucus layer

Question 18

What is the condition where stomach acid flows back into the esophagus causing heartburn?

Answer 18

Acid reflux

Question 19

What is the medical term for the involuntary movement of food through the digestive tract?

Answer 19

Peristalsis

Question 20

What is the term for the undigested food material that leaves the body as waste?

Answer 20

Feces

Question 21

What type of cell in the stomach produces pepsinogen?

Answer 21

Chief cell

Question 22

What does pepsinogen become when it is activated by stomach acid?

Answer 22

Pepsin

Question 23

What is the main function of pepsin in the digestive system?

Answer 23

Breaking down proteins

Question 24

What type of cell in the stomach produces hydrochloric acid?

Answer 24

Parietal cell

Question 25

Why is hydrochloric acid important in the stomach?

Answer 25

It helps digest food and kills bacteria

Question 26

How does hydrochloric acid help pepsinogen?

Answer 26

It activates pepsinogen into pepsin

Question 27

Which stomach cell helps create an acidic environment?

Answer 27

Parietal cell

Question 28

Which stomach cell helps start protein digestion?

Answer 28

Chief cell

Question 29

What vitamin needs hydrochloric acid to be absorbed properly?

Answer 29

Vitamin B12

Question 30

Which stomach cell helps with vitamin B12 absorption?

Answer 30

Parietal cell

Question 31

What is the main function of the digestive system?

Answer 31

To break down food and absorb nutrients

Question 32

What organ does food pass through after the esophagus?

Answer 32

Stomach

Question 33

What two processes happen in the stomach?

Answer 33

Mechanical digestion and chemical digestion

Question 34

What enzyme is released by chief cells to break down proteins?

Answer 34

Pepsin

Question 35

What is the name of the muscular valve that controls the flow of food into the small intestine?

Answer 35

Pyloric sphincter

Question 36

What organ comes directly after the stomach in the digestive system?

Answer 36

Small intestine

Question 37

What happens in the small intestine?

Answer 37

Nutrients are absorbed into the bloodstream

Question 38

What substance from the liver helps digest fat?

Answer 38

Bile

Question 39

What is the role of the pancreas in digestion?

Answer 39

It releases enzymes that break down food

Question 40

What organ comes after the small intestine?

Answer 40

Large intestine

Question 41

What is the function of the large intestine?

Answer 41

To absorb water and form solid waste

Question 42

What is the name of the part of the small intestine that receives enzymes and bile?

Answer 42

Duodenum

Question 43

What happens to food that is not absorbed by the digestive system?

Answer 43

It becomes waste and is eliminated

Question 44

What is the order food passes through in the digestive tract?

Answer 44

Mouth esophagus stomach small intestine large intestine rectum anus

Question 45

What is the difference between mechanical and chemical digestion?

Answer 45

Mechanical is physical breakdown chemical uses enzymes and acid