Name: _______________________________________
Date:________________
Period: ______
Digestive System Pre-Assessment
How Much Do You Know About the
Human Digestive System?
Directions: Read and answer each question carefully based on what you know about the digestive system.
Part A: Multiple Choice: Choose the letter that best corresponds to the question or statement provided. Write
your answer in letterform to the left of the question.
1.
a)
b)
c)
d)
What is the main function of the digestive system?
To transport blood throughout the body
To process food for energy use for the body
To provide support and move the body
To respond to external changes in the environment
2. Proteins are large molecules made up of many smaller units called
_______________________:
a) Simple Sugars
b) Lipids
c) Amino Acids
d) Enzymes
3. Carbohydrates are the main sources of energy for our body. They can be broken down
into smaller molecules called _______________________.
a) Simple Sugars
b) Lipids
c) Amino Acids
d) Enzymes
4.
a)
b)
c)
d)
What is an enzyme?
An organ of the body that helps in the digestion process by releasing digestion chemicals
A type of nutrient (food) consumed that is essential for human life
An acid that helps dissolve and remove unhealthy food from the body
A protein that speeds up the rate of chemical reactions so that food can be broken down
Part B: True or False: To the left of each question 5-10, circle T for a true statement or F for a false statement.
T / F
5. Food is digested, or broken down into smaller pieces, only by mechanical means (chewing,
mixing, or churning).
T / F
6. Everything we eat can be completely digested and used by our body.
T / F
7. Bacteria play an important role in breaking down intestinal materials and making vitamins for
our body.
T / F
8. The small intestine is the longest organ in the digestive system.
T / F
9. The process of digestion begins once food enters the stomach.
T / F
10. Food does not directly pass through accessory organs like the liver, gall bladder, and pancreas.
Part C, Number 11 a-f: Labeling: Match the appropriate organ from the word bank on the appropriate line
provided. Each word should be used only once.
Word Bank:
Gall Bladder
a)
Stomach
Small Intestine
Large Intestine
Mouth
Rectum
f)
Pancreas
b)
g)
Liver
c)
h)
d)
e)
Part D: Matching: Match the digestive organ to the correct function of that organ. Each letter should be used
only once.
Digestive Organs
_______ 12. Small Intestine
Functions
a) A J-shaped, muscular sac that stores food and
helps digest it; it is a very acidic place
_______ 13. Large Intestine
_______ 14. Mouth
_______ 15. Liver
b) A very long and coiled tube where most
digestion and absorption nutrients occurs
c) A muscular tube which connects the throat to
the stomach; moves food in a wavelike motion
_______ 16. Stomach
_______ 17. Esophagus
d) A short, wide tube where water is absorbed
from undigested food, bacteria are also present
e) The opening through which food passes into the
body, the teeth and tongue are found here
f) A large, lobed organ that produces and releases
bile which helps digest fats