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Understanding the Digestive System

Total questions: 106

Worksheet time: 1hrs 9mins

Name
Class
Date
1.

Which of the following best describes the primary function of the digestive system?

a)

To circulate blood throughout the body

b)

To break down food into nutrients

c)

To filter waste from the blood

d)

To protect the body from pathogens

2.

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

a)

Stomach

b)

Large intestine

c)

Small intestine

d)

Esophagus

3.

Identify the enzyme that breaks down proteins in the stomach.

a)

Amylase

b)

Lipase

c)

Pepsin

d)

Lactase

4.

Which of the following is a common digestive disorder characterized by inflammation of the stomach lining?

a)

Ulcerative colitis

b)

Gastritis

c)

Crohn's disease

d)

Irritable bowel syndrome

5.

What is the role of bile in the digestive process?

a)

To digest carbohydrates

b)

To emulsify fats

c)

To break down proteins

d)

To neutralize stomach acid

6.

Which structure connects the mouth to the stomach?

a)

Trachea

b)

Esophagus

c)

Pharynx

d)

Duodenum

7.

Which enzyme is responsible for the breakdown of carbohydrates in the mouth?

a)

Pepsin

b)

Amylase

c)

Lipase

d)

Trypsin

8.

What is needed to produce vitamin K in the human body?

a)

Sunlight exposure

b)

Intestinal bacteria

c)

Consumption of dairy products

d)

Regular exercise

9.

Which of the following disorders is characterized by the backflow of stomach acid into the esophagus?

a)

Celiac disease

b)

Gastroesophageal reflux disease (GERD)

c)

Diverticulitis

d)

Appendicitis

10.

What is the primary function of the pancreas in digestion?

a)

To produce bile

b)

To secrete digestive enzymes

c)

To absorb nutrients

d)

To store vitamins

11.

Which part of the digestive system is primarily involved in the mechanical breakdown of food?

a)

Stomach

b)

Mouth

c)

Small intestine

d)

Large intestine

12.

Which enzyme is responsible for the digestion of fats in the small intestine?

a)

Amylase

b)

Lipase

c)

Pepsin

d)

Trypsin

13.

Which of the following is a common symptom of irritable bowel syndrome (IBS)?

a)

Weight gain

b)

Constipation or diarrhea

c)

High fever

d)

Skin rash

14.

What is the primary function of the stomach in the digestive process?

a)

Absorption of nutrients

b)

Storage and mixing of food

c)

Production of bile

d)

Absorption of water

15.

Which of the following is a function of the liver in digestion?

a)

Production of insulin

b)

Production of bile

c)

Absorption of nutrients

d)

Secretion of digestive enzymes

16.

Which of the following is a common cause of peptic ulcers?

a)

Viral infection

b)

Bacterial infection (Helicobacter pylori or H pylori)

c)

High fiber diet

d)

Excessive exercise

17.

What is the role of the villi in the small intestine?

a)

To secrete digestive enzymes

b)

To increase surface area for absorption

c)

To produce bile

d)

To neutralize stomach acid

18.

Which of the following enzymes is involved in the digestion of proteins in the small intestine?

a)

Amylase

b)

Lipase

c)

Trypsin

d)

Lactase

19.

Which of the following is a structural component of the digestive system that prevents food from entering the respiratory tract?

a)

Epiglottis

b)

Uvula

c)

Diaphragm

d)

Larynx

20.

Which of the following is a function of hydrochloric acid in the stomach?

a)

To digest carbohydrates

b)

To activate pepsinogen to pepsin

c)

To emulsify fats

d)

To absorb nutrients

21.

Match the function with the term

a)

unabsorbed food is removed from the body

1.

elimination

b)

breakdown of food

2.

digestion

c)

movement of food from mouth to stomach

3.

propulsion

d)

aids in chemical digestion

4.

secretion

e)

movement of nutrients to the rest of the body.

5.

absorption

22.

Match the term with the description.

a)

release of digestive fluids (saliva, mucus, etc)

1.

secretion

b)

unabsorbed materials are eliminated

2.

defection

c)

nutrients and other molecules pass into the bloodstream

3.

absorption

d)

breaking down food

4.

digestion

e)

eating

5.

ingestion

23.

Where does the majority of mechanical digestion occur?

a)

In the mouth and stomach

b)

In the small and large intestines

c)

In the esophagus and stomach

d)

In the stomach and large intestine

24.

Bile is produced by the _______ and stored in the _______.

a)

Pancreas; Gallbladder

b)

Liver; Gallbladder

c)

Gallbladder; Liver

d)

Stomach; Pancreas

25.

Which of the following is NOT a role of the large intestine?

a)

Absorption of water

b)

Production of digestive enzymes

c)

Formation of feces

d)

Absorption of vitamins produced by gut bacteria

26.

Which of the following enzymes is involved in the breakdown of proteins?

a)

Amylase

b)

Lipase

c)

Pepsin

d)

Lactase

27.

How does the body benefit from dietary fiber?

a)

It provides essential nutrients

b)

It aids in the absorption of water in the large intestine

c)

It speeds up the digestion of proteins

d)

It increases the production of digestive enzymes

28.

What is the function of the digestive system?

a)

helps the body get the glucose it needs to make ATP

b)

takes in oxygen and releases carbon dioxide

c)

helps with body movement

d)

transports oxygen to the cells

29.

Match the following

a)
1.

stomach

b)
2.

esophagus

c)
3.

liver

30.

Which digestive organ is represented by the letter B?

a)

Pancreas

b)

Liver

c)

Mouth

d)

Small intestine

31.
What is "M"?
a)
Rectum
b)
Large Intestines
c)
Small Intestines
d)
Pancreas
32.
Question Image

Match the following

a)

gallbladder

1.

A

b)

duodenum

2.

B

c)

pancreas

3.

C

d)

jejunum

4.

D

e)

right lobe of the liver

5.

E

33.

Label the digestive system

a)

Mouth

b)

Esophagus

c)

Stomach

d)

Large intestine

1
2
3
4
1)
2)
3)
4)
34.
Which part of the digestive system is number 3?
a)
esophagus
b)
stomach
c)
small intestine
d)
liver
35.
To take in matter or energy
a)
collection
b)
composition
c)
aborption
d)
density
36.

What is the function of bile in the digestive system?

a)

It breaks down carbohydrates

b)

It emulsifies fats

c)

It activates digestive enzymes

d)

It absorbs vitamins

37.

Which of the following is true about the process of digestion?

a)

It only occurs in the stomach and small intestine

b)

It involves both mechanical and chemical processes

c)

It is solely a chemical process

d)

It does not involve enzymes

38.

Which vitamin is absorbed directly into the bloodstream in the stomach?

a)

Vitamin A

b)

Vitamin B12

c)

Vitamin C

d)

Vitamin D

39.

What is the significance of the stomach's acidic environment?

a)

It neutralizes bacteria in the food

b)

It aids in the digestion of fats

c)

It facilitates the absorption of carbohydrates

d)

It enhances the action of digestive enzymes

40.

Which organ is the primary site for nutrient absorption?

a)

Stomach

b)

Small intestine

c)

Large intestine

d)

Liver

41.

What is steatorrhea?

a)
Presence of blood in the stool
b)
Deficiency of fat in the stool
c)
Increased fiber content in the stool
d)
Excess fat in the stool
42.
When increased bacterial growth within the appendix causes infection and swelling it results in a condition called:
a)
apppendicitis
b)
feces
c)
enzymes
d)
peristalsis
43.
A wearing away of the stomach lining
a)
mechanical
b)
labor
c)
ulcer
d)
interact
44.
Inflammation of the small intestine. 
a)
enteritis
b)
enterorrahagia
c)
enteroscope
d)
colostomy
45.
Inflammation of the tongue
a)
gingivitis
b)
glossitis
c)
hepatitis
d)
enteritis
46.
Bad nutrition
a)
malnutrition
b)
malabsorption
c)
dyspepsia
d)
dysentery
47.
Poor digestion
a)
malnutrition
b)
malabsorption
c)
dyspepsia
d)
dysentery
48.

inflammation of the liver caused by a virus, A-E

a)

hepatitis

b)

emesis

c)

mumps

d)

heartburn

e)

gastritis

49.
Inflammation of the liver
a)
gingivitis
b)
glossitis
c)
hepatitis
d)
enteritis
50.

bile duct is blocked, bile will enter the blood stream

a)

diverticulitis

b)

enteritis

c)

appendicitis

d)

jaundice

e)

gastroenteritis

51.

inflammation of a diverticula ( an outpouching of intestinal tissue), can be life threatening if it ruptures

a)

diverticulitis

b)

enteritis

c)

appendicitis

d)

jaundice

e)

gastroenteritis

52.

What disorder is characterized by the stomach and esophagus sliding through the diaphragm?

a)
Peptic Ulcer
b)
Gastritis
c)
Hiatal Hernia
d)
Gastroenteritis
53.

inflammation of the mucus membrane lining of the stomach and intestines

a)

diverticulitis

b)

enteritis

c)

appendicitis

d)

jaundice

e)

gastroenteritis

54.

acute or chronic inflammation of the stomach lining

a)

hepatitis

b)

emesis

c)

mumps

d)

heartburn

e)

gastritis

55.

What part of the digestive system is highlighted?

a)

Large intestine

b)

Small intestine

c)

Stomach

d)

Appendix

56.

After a large Thanksgiving meal, about how long will it take until your stomach is completely empty again?

a)

about 6-8 minutes

b)

about 6-8 hours

c)

about 6-8 seconds

57.
When the large intestine reabsorbs too much water from solid waste before it exits the body, it results in a codition called,
a)
feces
b)
diarrhea
c)
constipation
d)
ulcer
58.

What is the process called when glucose is converted into glycogen in the liver?

a)

Glycolysis

b)

Glycogenesis

c)

Gluconeogenesis

d)

Glycogenolysis

59.

Which hormone primarily stimulates the conversion of glucose to glycogen in the liver?

a)

Glucagon

b)

Insulin

c)

Adrenaline

d)

Cortisol

60.

Where is glycogen primarily stored in the human body?

a)

Pancreas

b)

Kidneys

c)

Liver and muscles

d)

Heart

61.

Which of the following are correct functions of the digestive system? Select TWO correct answers

a)

The digestive system absorbs nutrients the body can use for energy.

b)

The digestive system transports nutrients throughout the body.

c)

The digestive system filters blood and removes wastes from the body.

d)

The digestive system regulates body activities using hormones.

e)

The digestive system breaks down the foods we eat into smaller substances.

62.

What is the role of trypsin in the digestive system?

a)

Breaks down carbohydrates

b)

Breaks down proteins into peptides and amino acids

c)

Emulsifies fats

d)

Neutralizes stomach acid

63.

How is trypsinogen activated into trypsin in the small intestine?

a)

By the enzyme pepsin

b)

By the enzyme enterokinase

c)

By bile acids

d)

By hydrochloric acid

64.

Which of the following is a function of trypsin related to pancreatic health?

a)

It acts as a marker for pancreatic function

b)

It regulates blood sugar levels

c)

It produces insulin

d)

It stores digestive enzymes

65.
Saliva contains this enzyme to start the digestive process.
a)
spit
b)
amylase
c)
hydrochloric acid
d)
sodium bicarbonate
66.
Chewing food is an example of _____________.
a)
chemical digestion
b)
mechanical digestion
67.

What is the term for the muscle contraction that moves food through the digestive system?

a)

Osmosis

b)

Peristalsis

c)

Diffusion

d)

Respiration

68.

What maximizes molecule absorption in the small intestine?

a)

Villi

b)

Enzymes

c)

Hormones

d)

Bile

69.

Where does the final deconstruction of proteins into amino acids occur?

a)

Stomach

b)

Large intestine

c)

Liver

d)

Small intestine

70.

What is the final byproduct of digestion called?

a)

Stool

b)

Chyme

c)

Bolus

d)

Waste

71.

Which of the following helps digest carbohydrates in the mouth...

a)

salivary amylase

b)

lysozymes

c)

mucin

d)

bolus

72.
Which structure prevents food from entering the trachea? 
a)
larynx
b)
soft palate
c)
pharynx
d)
epiglottis
73.

What is the muscular tube that connects the mouth to the stomach?

a)

Liver

b)

Large Intestine

c)

Esophagus

d)

Pancreas

74.

What happens to the bolus when it enters the stomach?

a)

Bile is produced and digests the bolus

b)

stomach muscles contract and smash the bolus

c)

nutrients from the bolus are absorbed

d)

enzymes in the bolus create acid

75.

Which digestive organ is the longest?

a)

Esophagus

b)

Small Intestine

c)

Large Intestine

d)

Stomach

76.

What is the function (job) of the large intestine?

a)

To absorb water and minerals

b)

To store vitamins and fats

c)

To produce bile and acid

d)

To regulate the blood sugar and hormones

77.

What is the liver's function in the digestive system?

a)

It produces bile

b)

It controls blood sugar

c)

It stores digested food

d)

It removes solid waste

78.

What is the name of the highlighted organ in the picture?

a)

esophagus

b)

stomach

c)

small intestine

d)

large intestine

79.

What is the name of the highlighted organ in the picture?

a)

Pancreas

b)

Gall Bladder

c)

Liver

d)

Colon

80.

What is the name of the highlighted organ in the picture?

a)

esophagus

b)

stomach

c)

small intestine

d)

large intestine

81.

What substance in the mouth contains an enzyme that begins chemical digestion?

a)

fiber

b)

mucus

c)

pepsin

d)

saliva

82.

What process involves muscle contractions that move food through the esophagus?

a)

absorption

b)

peristalsis

c)

mechanical digestion

d)

elimination

83.

What structure enables the small intestine to absorb large amounts of nutrients?

a)

villi

b)

pancreas

c)

liver

d)

gallbladder

84.

When you swallow, a flap of tissue called the ___________ prevents food from entering your windpipe.

a)

esophagus

b)

epiglottis

c)

pancreas

d)

bile

85.

Enzymes are proteins that help in the kind of digestion called ______________ digestion.

a)

mechanical

b)

chemical

86.

One of the roles of the ____________ intestine is to prepare waste material for elimination.

a)

large

b)

small

87.

Which of the following help with mechanical digestion

a)

Saliva

b)

Chewing

c)

Stomach Acid

d)

Muscular squeezing

88.

Where does MOST of the digestion process occur?

a)

Small intestine

b)

Mouth

c)

Stomach

d)

Large Intestine

e)

Colon

89.

Pick the correct order of digestion

a)

Mouth,stomach,esophagus,large intestine,small intestine

b)

Mouth,esophagus,stomach,small intestine, large intestine

c)

Mouth, esophagus, stomach, large intestine, small intestine, colon

d)

Mouth, stomach, esophagus, small intestine, large intestine

90.

What chemical breaks down Fat?

a)

Water

b)

Saliva

c)

Sodium

d)

Bile

91.

What does the Gall Bladder store?

a)

Bile

b)

Fat

c)

Carbohydrates

d)

Insulin

92.

What organ produces Insulin?

a)

Liver

b)

Stomach

c)

Appendix

d)

Pancreas

93.

Another name for the Large Intestine?

a)

Really big intestine

b)

Colon

c)

Pancreas

d)

Massive

94.

Identify the pictures that represent chemical digestion.

A
B
C
D
95.

The digestive process starts in your (a)   ​   when you chew. ​ (b)     a digestive juice, moistens the food so it easily moves through the ​ (c)     and into the ​ (d)     where digestive juices further break it down. It then moves into the ​ (e)     first and then the large intestine and is finally expelled out of the body through the rectum.

Choose from the below words
mouth
Saliva
esophagus
stomach
small intestine
96.

What part of the digestion system does mechanical digestion start ?

a)

In the mouth

b)

In the esophagus

c)

In the Stomach

d)

In the small intestines

1
1)
97.

Point to the two organs where most chemical digestion takes place.

A
B
C
D
E
F
98.

Reorder the following to show how the body processes food

a)

Ingestion

b)

Digestion

c)

Absorption

d)

Egestion

1)
2)
3)
4)
99.

Match the following enzyme with the correct action

a)

pepsin

1.

breaks down proteins

b)

lipase

2.

breaks down fats

c)

amylase

3.

breaks down starches/carbs

100.

In the first step of digestion, (a)   is chopped up into small pieces by your ​ (b)   . The muscles in the esophagus ​ (c)   the food farther and farther down until it reaches the stomach. This is also known as ​ (d)   . Then the ​ (e)   takes everything you eat and churns it around ad around like a blender.

Choose from the below words
food
mouth
squeeze
peristalsis
stomach
101.
The chewing and grinding of food into smaller pieces is an example of...
a)
Mechanical Digestion
b)
Chemical Digestion
102.

Amylase is an enzyme found in our saliva. Amylase changes starch into...

a)

glucose

b)

salt

c)

iron

d)

starch

103.

The Structure that Stores bile

A
B
C
D
104.

Match the following

a)
1.

Chemical Digestion and Absorbs Nutrients into Bloodstream

b)
2.

Absorbs water into bloodstream and forms solid waste

c)
3.

Mechanical digestion through churning and chemical digestion through acid and enzymes

d)
4.

Together these structures produce and store bile

e)
5.

Produces enzymes and insulin

105.

Match the following digestive organs to their functions

a)

Absorbs water and vitamins

1.

Large Intestine

b)

Mechanically breaks down food by chewing and mashing

2.

Mouth

c)

Chemically breaks down food using acid and enzymes

3.

Stomach

d)

Absorbs nutrients and uses diffusion to deliver them to the blood stream

4.

Small intestine

e)

Pushes food down the digestive tract from the pharynx to the stomach

5.

Esophagus

106.

Match the following

a)

Contains villi; site of the majority of digestion and nutrient absorption

1.

small intestine

b)

opens to allow elimination to occur

2.

anus

c)

produces pancreatic juice and insulin

3.

pancreas

d)

carries out chemical digestion with gastric juices and mechanical digestion with churning

4.

stomach

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