Unit 2 Test: The Digestive System
Anatomy
Objective 2.1: I can name the organs of the alimentary canal and accessory digestive organs and
identify each on an appropriate diagram or model.
Match the organs to the
correct letter shown on the
diagram to the left.
Mouth _____
Large Intestine _____
Salivary Glands _____
Small Intestine _____
Liver _____
Tongue _____
Stomach _____
Esophagus _____
Rectum _____
Spleen _____
Pharynx _____
Anus _____
Appendix _____
Pancreas _____
Gallbladder _____
Which one of the following represents the correct order through which food passes in the
alimentary canal:
A) mouth, pharynx, esophagus, stomach, large intestine, small intestine
B) mouth, esophagus, pharynx, stomach, small intestine, large intestine
C) pharynx, mouth, esophagus, stomach, large intestine, small intestine
D) mouth, pharynx, esophagus, stomach, small intestine, large intestine
E) mouth, pharynx, esophagus, small intestine, stomach, large intestine
Objective 2.2: I can identify the overall function of the digestive system as digestion and
absorption of foodstuffs.
List two main divisions of the digestive system.
a. _____________________
b. _____________________
Objective 2.3: I can describe the general functions of each digestive system organ.
Identify the digestive organ that is primarily associated with the following digestive function:
1) Primary site of water absorption _____
A) anus
2) Site where starch digestion begins _____
B) Ileum
3) Tube through which food is propelled but no digestion takes place _____
C) small
intestine
4) Site where the beginning of protein digestion occurs _____
D) large
intestine
5) Site where pancreatic enzymes and bile enter the alimentary canal _____
E) mouth
6) Site of vitamin K synthesis by bacteria _____
F) esophagus
7) Site of initiation of the defecation reflex _____
G) stomach
H) rectum
I) duodenum
Objective 2.4: I can describe the composition and function(s) of saliva.
Mary has a dry mouth – very little saliva is being secreted. Digestion of which type of food will
be affected (decreased) by this situation and why?
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Objective 2.5: I can describe the basic anatomy of teeth.
Teeth are classified according to shape and function as incisors, canines, premolars, and
molars. Explain the shape and function of each type of tooth.
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Objective 2.6: I can explain how villi aid digestive processes in the small intestine.
What are villi, and why are they important?
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Functions
Objective 2.7: I can describe the mechanisms of swallowing, vomiting, and defecation.
The process of swallowing is also known as:
A) mastication
D) defecation
B) segmentation
E) absorption
C) deglutition
Objective 2.8: I can explain how foodstuffs in the digestive tract are mixed and moved.
What is the proper order of the following stages of food processing – Defecation, Mechanical
Digestion, Absorption, Chemical Digestion, Ingestion, Propulsion?
(1)_______________________ (2) _______________________ (3) _______________________
(4)_______________________ (5) _______________________ (6) _______________________
Describe three of the processes listed above.
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Objective 2.9: I can describe the function of local hormones in the digestive process.
The hormone responsible for causing the stomach to release pepsinogens, mucus, and
hydrochloric acid:
A) rennin
D) pepsin
B) bile
E) amylase
C) gastrin
Objective 2.10: I can list the major enzymes produced by the digestive organs and glands, and
describe the function of each.
Match the following nutrients with their associated digestive enzymes:
A) bile
1) Proteins _____
B) pepsinogen
2) Lactose _____
C) pepsinogens
3) Starch _____
D) nuclease
4) Fat _____
E) hydrochloric acid
5) Nucleic Acids _____
F) lipase
G) lactase
H) amylase
Objective 2.11: I can name the end products of protein, fat, and carbohydrate digestion.
Name the end products of protein, fat, and carbohydrate digestion:
Protein ________________________________________
Fat ________________________________________
Carbohydrate ________________________________________
Objective 2.12: I can describe the digestive function of bile.
24) Bile is produced by the __________ but stored in the __________.
A) liver; pancreas
B) gallbladder; liver
C) liver; gallbladder
D) small intestine; pancreas
E) gallbladder; pancreas
What is the digestive role of bile? __________________________________________________
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Nutrition
Objective 2.13: I can define nutrient and kilocalorie.
Define nutrient. ________________________________________________________________
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Objective 2.14: I can name the six major nutrient categories and dietary sources.
Name the six majors nutrients categories and a dietary source for each:
1. _____________________________ Dietary Source: _________________________________
2. _____________________________ Dietary Source: _________________________________
3. _____________________________ Dietary Source: _________________________________
4. _____________________________ Dietary Source: _________________________________
5. _____________________________ Dietary Source: _________________________________
6. _____________________________ Dietary Source: _________________________________
Disorders
Objective 2.15: I can describe the effect of aging on the digestive system.
Obesity has well-known adverse effects on health (the obese have a higher incidence of
arteriosclerosis, hypertension, coronary artery disease, and diabetes mellitus). Obesity is the
most common health problem in the United States. Explain what causes obesity and the actions
you can take to reduce your risk of health problems associated with obesity.
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