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WorksheetsDigestive System Functions & Processes (Revised)
Total questions: 22
Worksheet time: 14mins
What is the primary function of the digestive system?
To circulate blood throughout the body.
To allow the body to get nutrients and energy from food.
To filter waste products from the blood.
To regulate body temperature.
What two processes begin the breakdown of food in the mouth?
Swallowing and acid production.
Chewing and saliva.
Peristalsis and enzyme release.
Absorption and waste removal.
What is the esophagus?
An organ that mixes food with acid.
A muscular tube connecting the throat to the stomach.
A gland that produces digestive enzymes.
The primary site for nutrient absorption.
What is the function of the lower esophageal sphincter (LES)?
To break down proteins in the stomach.
To absorb water from food.
To prevent food from moving back into the esophagus from the stomach.
To produce bile for fat digestion.
What happens to food in the stomach?
It is absorbed into the bloodstream.
It is mixed with acid and enzymes to break it down into a liquid or paste.
It is compacted into solid waste.
It is primarily where fats are absorbed.
Approximately how long is the small intestine?
5 feet
10 feet
20 feet
30 feet
Which of the following are segments of the small intestine?
Colon, Rectum, Anus
Pharynx, Esophagus, Stomach
Duodenum, Jejunum, Ileum
Liver, Pancreas, Gallbladder
What is the main responsibility of the small intestine in digestion?
Storing waste material.
Absorbing nutrients.
Producing digestive acids.
Initiating the breakdown of food.
What is one of the pancreas's roles in digestion?
To store bile.
To purify blood.
To produce digestive enzymes.
To absorb water.
What types of nutrients do pancreatic enzymes help break down?
Vitamins and minerals.
Water and electrolytes.
Proteins, fats, and carbohydrates.
Fiber and roughage.
What are the liver's main responsibilities in the digestive process?
To store food and mix it with acid.
To make and secrete bile, and process newly absorbed nutrients.
To absorb water and form stool.
To produce insulin and regulate blood sugar.
What are the two main purposes of bile in digestion?
To break down carbohydrates and absorb water.
To help absorb fats and carry waste from the liver.
To produce digestive enzymes and regulate blood pressure.
To store glucose and detoxify blood.
Where is bile stored if it is not immediately needed for digestion?
In the stomach.
In the pancreas.
In the gallbladder.
In the small intestine.
What is the primary role of the colon (large intestine)?
To absorb nutrients from food.
To produce digestive enzymes.
To process waste so that defecation is easy and convenient.
To break down fats using bile.
What is the main function of the rectum and anus in the digestive process?
To absorb remaining nutrients.
To produce hormones for digestion.
To store and control the excretion of stool.
To break down complex carbohydrates.
Where is the esophagus?
Where is the liver?
Match the following
gallbladder
A
duodenum
B
pancreas
C
jejunum
D
right lobe of the liver
E
Which of these structures is the rectum?
Locate the small intestine
Match the parts of the alimentary canal
8
transverse colon
9
ascending colon
10
cecum
21
descending colon
20
small intestine
Label the digestive system
Mouth
Esophagus
Stomach
Large intestine
