wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Human digestion

Total questions: 45

Worksheet time: 15mins

Name
Class
Date
1.

What is the correct order of food passage in the alimentary canal?

a)

Mouth, Stomach, Oesophagus, Small Intestine, Large Intestine

b)

Mouth, Oesophagus, Stomach, Large Intestine, Small Intestine

c)

Mouth, Oesophagus, Stomach, Small Intestine, Large Intestine

d)

Mouth, Large Intestine, Small Intestine, Stomach, Oesophagus

2.

At what point does digestion begin?

a)

When you put food in the mouth

b)

After the food enters the stomach

c)

After the food enters the large intestine

d)

After food enters the small intestine

3.

Saliva helps us to:

a)

Begin breaking down, moisten, and swallow food

b)

Moisten and swallow food

c)

Swallow food

d)

Chew

4.

What is the purpose of the large intestine?

a)

Breaking food down into small pieces

b)

To store faeces

c)

Absorbing minerals and vitamins

d)

Absorbing salts and water

5.

What is NOT an Organ of the Alimentary Canal?

a)

Large Intestine

b)

Stomach

c)

Liver

d)

Oesophagus

6.

In humans, structures that release digestive secretions directly into the small intestine include both the

a)

salivary glands and the pancreas

b)

gall bladder and the lacteals

c)

villi and the salivary glands

d)

pancreas and the gall bladder

7.

Into which parts of the human digestive system are digestive enzymes secreted?

a)

mouth, oesophagus, stomach

b)

stomach, small intestine, large intestine

c)

mouth, stomach, small intestine

d)

oesophagus, stomach, large intestine

8.

In the human body, hydrochloric acid is responsible for the low pH of the contents of the

a)

pancreas

b)

small intestine

c)

liver

d)

stomach

9.
Which organ is the initial site of the extracellular chemical digestion of proteins?
a)
A
b)
B
c)
E
d)
D
10.
What occurs during the digestion of proteins?
a)
Specific enzymes break down proteins into amino acids.
b)
Specific hormones break down proteins into simple sugars.
c)
Specific hormones break down proteins into complex starches.
d)
Specific enzymes break down proteins into simple sugars.
11.

Which activity normally occurs in the oesophagus of a human?

a)

hydrolysis of protein

b)

process of peristalsis

c)

secretion of amylase

d)

secretion of HCl

12.

Bile is a secretion which aids in the digestion of

a)

lipids

b)

proteins

c)

saccharides

d)

nucleic acids

13.

Faeces is usually about 40 percent water and 60 percent solid matter. Reducing the water content to 20 percent would most likely result in

a)

ulcers

b)

appendicitis

c)

diarrhoea

d)

constipation

14.
Which type of digestion occurs in the mouth when an individual chews a piece of bread?
a)
mechanical digestion, only
b)
chemical digestion, only
c)
both mechanical and chemical digestion
d)
neither mechanical nor chemical digestion
15.

The principal function of structure x is to

a)

produce enzymes

b)

secrete hormones

c)

absorb water

d)

digest cellulose

16.
Which molecule can diffuse from the digestive tract into the human bloodstream without first being digested?
a)
protein
b)
starch
c)
fat
d)
glucose
17.
Before starch can enter a cell, it must be
a)
absorbed by simple sugars
b)
diffused into simple sugars
c)
digested to form simple sugars
d)
actively transported by simple sugars
18.

The diagram below shows parts of the human digestive system.


Which points are linked by the small intestine?

a)

I and III

b)

II and III

c)

II and IV

d)

III and IV

19.

What is the product of digestion by amylase?

a)

glucose

b)

maltose

c)

fructose

d)

sucrose

20.
The organ in orange represents the:
a)
Liver
b)
Lung
c)
Stomach
d)
Pancreas
21.
The highlighted organ is the
a)
liver
b)
large intestine
c)
small intestine
d)
stomach
22.

Bile is made by which digestive organ?

a)

Gallbladder

b)

Pancreas

c)

Small Intestine

d)

Liver

23.

This organ does not actually touch the food but it secretes enzymes to help break down foods.

a)

Gallbladder

b)

Liver

c)

Ileum

d)

Pancreas

24.

Another name for the Large Intestine.

a)

Colon

b)

Caecum

c)

Appendix

d)

Rectum

25.

Most nutrient absorption occurs in the ________________ .

a)

mouth

b)

stomach

c)

large intestines

d)

small intestines

26.

Protein is broken down into ______________ before they are asborbed into the small intestines.

a)

fatty acids

b)

amino acids

c)

citric acid

d)

hydrochloric acid

27.

____________ in the pancreatic and intestinal juice completes the digestion of fats.

a)

Amylase

b)

Protease

c)

Lipase

28.
Which of the following organs is INCORRECTLY paired with its function?
a)
stomach - protein digestion
b)
large intestine - bile production
c)
small intestine - nutrient absorption
d)
pancreas - enzyme production
29.
Which of the following is NOT a major activity of the stomach?
a)
mechanical digestion
b)
HCl production
c)
nutrient absorption
d)
enzyme secretion
30.

Which structure produces a liquid called CHYME during the digestive process?

a)

1

b)

2

c)

3

d)

4

31.

Flap of skin that covers the opening to the windpipe during swallowing

a)

Trachea

b)

Oesophagus

c)

Tongue

d)

Epiglottis

32.

Assimilation is the ____ stage of Human Digestion

a)

3rd

b)

2nd

c)

5th

d)

4th

e)

1st

33.
Which of the following DOES NOT secrete and combine digestive enzymes with food?
a)
Small intestine
b)
Large Intestine
c)
Stomach
d)
Mouth
34.

Mixture of gastric juices and chewed food that combines in the stomach.

a)

Mucus

b)

Chyme

c)

Faeces

d)

Pancreatic juice and bile

35.

Which organ is the initial site of chemical digestion of proteins?

a)

A

b)

B

c)

E

d)

D

36.

Which process is illustrated in the diagram?

a)

digestion

b)

absorption

c)

peristalsis

d)

ingestion

37.

The opening from the Oesophagus to the Stomach is the

a)

Pyloric Sphincter Muscle

b)

Cardiac Sphincter Muscle

38.

Peristalsis occurs in every part of the gut

a)

True

b)

False

39.

Label C correctly

a)

Lymph Vessel

b)

Lymph Node

c)

Lacteal

d)

Lactate

40.

Mucus in the stomach

a)

Kills bacteria

b)

Breaks down proteins

c)

Prevents self-digestion

d)

Churns the food

41.
The ability of an enzyme to function properly depends on its environment. Unlike most enzymes in the human body, you would expect enzymes produced by the stomach to function best in an environment where
a)
the temperature is above normal body temperature.
b)
the acidity is very high.
c)
there are many other enzymes.
d)
the salt concentration is very high.
42.
The graph shows the effect of temperature on enzyme action. What characteristic do enzymes E1, E2, and E3 share?
a)
Their activity increases between 20°C and 30°C.
b)
Their activity is greatest between 5°C and 10°C.
c)
Their activity is at a low level between 15°C and 25°C.
d)
Their activity is at a high level between 30°C and 40°C.
43.

Enzymes are proteins that are used in digestion. The role of an enzyme is to _____.

a)

speed up chemical reactions

b)

aid in active transport of nutrients

c)

regulate the production of energy during digestion

d)

emulsify fats

44.

The function of bile is

a)

to emulsify fats

b)

to digest fats

c)

to emulsify and also digest fats

45.

Faeces are:

a)

Excreted

b)

Secreted

c)

Egested

Similar Resources on Wayground

A&P Review Unit 2

41 questions

A&P Review Unit 2

quiz

Worksheet

•

11th Grade - University

Chapter 1&2 Test Review

50 questions

Chapter 1&2 Test Review

quiz

Worksheet

•

9th - 12th Grade

VCE Biology - U1- Transport Through the Membrane

40 questions

VCE Biology - U1- Transport Through the Membrane

quiz

Worksheet

•

9th - 11th Grade

Ch 8 Test Honors

44 questions

Ch 8 Test Honors

quiz

Worksheet

•

9th - 12th Grade

B10 Plant and Human Reproduction

50 questions

B10 Plant and Human Reproduction

quiz

Worksheet

•

9th Grade - University

Cell Division Quiz

40 questions

Cell Division Quiz

quiz

Worksheet

•

9th - 11th Grade

10/11 Review

50 questions

10/11 Review

quiz

Worksheet

•

10th Grade