Digestion

Question 1

What is the primary function of the mouth in the digestive system?

Answer 1

To mechanically break down food and begin the process of digestion through saliva.

Question 2

True or False: The esophagus is responsible for nutrient absorption.

Answer 2

False

Question 3

Fill in the blank: The _______ is a muscular tube that connects the throat to the stomach.

Answer 3

esophagus

Question 4

What role does the stomach play in digestion?

Answer 4

It further breaks down food using acids and enzymes, turning it into a semi-liquid substance called chyme.

Question 5

Which organ is primarily responsible for nutrient absorption?

Answer 5

Small intestine

Question 6

Multiple Choice: Which part of the digestive system is involved in water absorption?
A) Stomach
B) Large intestine
C) Small intestine
D) Esophagus

Answer 6

B) Large intestine

Question 7

What are villi and where are they located?

Answer 7

Villi are small, finger-like projections located in the small intestine that increase surface area for nutrient absorption.

Question 8

True or False: The liver produces bile, which aids in fat digestion.

Answer 8

True

Question 9

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

Answer 9

It produces digestive enzymes and bicarbonate to help neutralize stomach acid.

Question 10

Fill in the blank: The _______ stores bile produced by the liver until it is needed for digestion.

Answer 10

gallbladder

Question 11

Short Answer: What is the role of the rectum in the digestive system?

Answer 11

It stores feces until they are expelled from the body.

Question 12

Multiple Choice: Which part of the digestive system is responsible for the final stages of digestion and water absorption?
A) Stomach
B) Small intestine
C) Large intestine
D) Pancreas

Answer 12

C) Large intestine

Question 13

What is chyme?

Answer 13

Chyme is the semi-liquid mass of partially digested food that is formed in the stomach.

Question 14

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

Answer 14

False

Question 15

Short Answer: Name one enzyme produced by the pancreas.

Answer 15

Amylase, lipase, or proteases.

Question 16

What is the primary function of the mouth in the digestive system?

Answer 16

The mouth is responsible for mechanical digestion through chewing and chemical digestion through saliva.

Question 17

True or False: Saliva contains enzymes that start the digestion of carbohydrates.

Answer 17

True

Question 18

What enzyme in saliva breaks down starches?

Answer 18

Amylase

Question 19

What is the role of the esophagus in digestion?

Answer 19

The esophagus transports food from the mouth to the stomach.

Question 20

Fill in the blank: The stomach produces _____ to aid in digestion.

Answer 20

gastric acid and enzymes

Question 21

What is the primary enzyme produced in the stomach?

Answer 21

Pepsin

Question 22

True or False: The stomach is the main site for nutrient absorption.

Answer 22

False

Question 23

What is the main function of the small intestine?

Answer 23

The small intestine is responsible for the majority of nutrient absorption.

Question 24

What enzymes are produced by the pancreas for digestion?

Answer 24

Lipase, amylase, and proteases

Question 25

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

Answer 25

C. Large intestine

Question 26

What is the role of bile in digestion?

Answer 26

Bile emulsifies fats to aid in their digestion and absorption.

Question 27

True or False: The liver produces bile.

Answer 27

True

Question 28

What is the function of the gallbladder in digestion?

Answer 28

The gallbladder stores and concentrates bile until it is needed in the small intestine.

Question 29

Fill in the blank: The _____ is where the final stages of digestion and absorption occur.

Answer 29

small intestine

Question 30

What is the role of intestinal villi?

Answer 30

Intestinal villi increase the surface area for nutrient absorption in the small intestine.

Question 31

Multiple Choice: Which enzyme breaks down proteins in the stomach?

Answer 31

A. Pepsin

Question 32

What is the function of the rectum in the digestive system?

Answer 32

The rectum stores feces until they are excreted.

Question 33

True or False: Digestion begins in the stomach.

Answer 33

False

Question 34

What is the primary purpose of the large intestine?

Answer 34

The primary purpose of the large intestine is to absorb water and electrolytes and to form solid waste.

Question 35

Fill in the blank: The enzyme _____ digests fats in the small intestine.

Answer 35

lipase

Question 36

What is the primary function of the large intestine?

Answer 36

The primary function of the large intestine is to absorb water and electrolytes from indigestible food matter and to eliminate waste.

Question 37

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

Answer 37

False

Question 38

Fill in the blank: The large intestine is approximately ___ meters long in adults.

Answer 38

1.5

Question 39

What are the four main sections of the large intestine?

Answer 39

Cecum, colon, rectum, and anal canal.

Question 40

Which part of the large intestine connects to the small intestine?

Answer 40

Cecum

Question 41

Multiple Choice: Which of the following is NOT a part of the large intestine? A) Cecum B) Colon C) Duodenum D) Rectum

Answer 41

C) Duodenum

Question 42

What type of bacteria is primarily found in the large intestine?

Answer 42

Gut microbiota or intestinal flora.

Question 43

True or False: The large intestine plays a significant role in digestion.

Answer 43

False

Question 44

What is the role of the rectum in the large intestine?

Answer 44

The rectum stores feces before they are expelled from the body.

Question 45

Fill in the blank: The large intestine absorbs about ___% of the water that passes through it.

Answer 45

90

Question 46

What is the function of the anal canal?

Answer 46

The anal canal regulates the expulsion of feces.

Question 47

Multiple Choice: Which part of the colon is primarily involved in water absorption? A) Ascending colon B) Transverse colon C) Descending colon D) Sigmoid colon

Answer 47

B) Transverse colon

Question 48

What is the term for the wave-like muscle contractions that move waste through the large intestine?

Answer 48

Peristalsis

Question 49

True or False: The large intestine has villi to increase surface area for absorption.

Answer 49

False

Question 50

What is the main waste product formed in the large intestine?

Answer 50

Feces

Question 51

Fill in the blank: The large intestine is also known as the ___ intestine.

Answer 51

Colon

Question 52

What is the primary purpose of gut microbiota in the large intestine?

Answer 52

To help with fermentation and digestion of complex carbohydrates.

Question 53

Multiple Choice: Which condition is characterized by inflammation of the large intestine? A) Crohn's disease B) Irritable bowel syndrome C) Ulcerative colitis D) Celiac disease

Answer 53

C) Ulcerative colitis

Question 54

What is the significance of the ileocecal valve?

Answer 54

It regulates the flow of material from the small intestine to the large intestine.

Question 55

True or False: The large intestine produces digestive enzymes.

Answer 55

False

Question 56

What is the major role of the colon in the digestive system?

Answer 56

To absorb water and electrolytes and to form and store feces.

Question 57

Fill in the blank: The large intestine is responsible for the fermentation of ___ and ___ in the gut.

Answer 57

fiber and carbohydrates

Question 58

What is diverticulosis?

Answer 58

A condition characterized by the formation of small pouches (diverticula) in the wall of the large intestine.

Question 59

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

Answer 59

B) Vitamin K

Question 60

What is the role of mucus in the large intestine?

Answer 60

To lubricate the contents of the intestine and protect the intestinal wall.

Question 61

True or False: The large intestine is involved in detoxifying substances.

Answer 61

True