Question 1

The stomach is involved only in chemical digestion.

Accepted Answer

A) True 
 B)False  False

Question 2

During phase B the release of which hormone increases?

Accepted Answer

A) CCK 
B) Secretin 
C) Gastrin 
D) Pepsin 
A) CCK 
B) Secretin 
C) Gastrin 
D) Pepsin C

Question 3

Chemical digestion of carbohydrates takes place:

Accepted Answer

A) in the mouth. 
B) in the stomach. 
C) in the small intestine. 
D) in the mouth and small intestine. 
A) in the mouth. 
B) in the stomach. 
C) in the small intestine. 
D) in the mouth and small intestine. D

Question 4

Where does peristalsis start during deglutition?

Accepted Answer

A) Mouth 
B) Pharynx 
C) Esophagus 
D) Stomach 
A) Mouth 
B) Pharynx 
C) Esophagus 
D) Stomach

Question 5

What is the purpose of the acidic conditions of the stomach?

Accepted Answer

A) It is necessary to absorb vitamin B₁₂. 
B) The acid digests the protein. 
C) It activates pepsin and kills microbes. 
D) The acid creates small holes called gastric pits, which release the digestive enzymes of the stomach. 
A) It is necessary to absorb vitamin B₁₂. 
B) The acid digests the protein. 
C) It activates pepsin and kills microbes. 
D) The acid creates small holes called gastric pits, which release the digestive enzymes of the stomach.

Question 6

What is the function of structure C?

Accepted Answer

A) Production of enzymes necessary for digestion 
B) Absorption of water 
C) Storage of bile 
D) Absorption of vitamins 
A) Production of enzymes necessary for digestion 
B) Absorption of water 
C) Storage of bile 
D) Absorption of vitamins

Question 7

Where is pepsin produced?

Accepted Answer

A) Salivary glands 
B) Stomach 
C) Liver 
D) Pancreas 
A) Salivary glands 
B) Stomach 
C) Liver 
D) Pancreas

Question 8

Mechanical digestion alters chemical bonds.

Accepted Answer

A) True 
 B)False

Question 9

All digestive enzymes except for two,act in the small intestine.

Accepted Answer

A) True 
 B)False

Question 10

What is the name of the process pictured here?

Accepted Answer

A) Digestion 
B) Absorption 
C) Peristalsis 
D) Maceration 
A) Digestion 
B) Absorption 
C) Peristalsis 
D) Maceration

Question 11

Cows feed on grass which humans can't digest and therefore expand the food supply.

Accepted Answer

A) True 
 B)False

Question 12

The hepatic portal system is composed of blood vessels that bring _________.

Accepted Answer

A) nutrient-rich blood to the liver for processing 
B) oxygen-rich blood to the liver 
C) oxygen-poor blood away from the liver 
D) bile to the small intestine 
A) nutrient-rich blood to the liver for processing 
B) oxygen-rich blood to the liver 
C) oxygen-poor blood away from the liver 
D) bile to the small intestine

Question 13

The tonsils and MALT are both immune structures associated with the digestive system.

Accepted Answer

A) True 
 B)False

Question 14

What is the name of the structure labeled A?

Accepted Answer

A) Salivary gland 
B) Mouth 
C) Pharynx 
D) Tongue 
A) Salivary gland 
B) Mouth 
C) Pharynx 
D) Tongue

Question 15

What is a hydrolase?

Accepted Answer

A) An enzyme that digests water. 
B) A cell that makes hydrochloric acid. 
C) An enzyme that digests polymers by inserting water molecules between monomers. 
D) A cell that absorbs water in the colon. 
A) An enzyme that digests water. 
B) A cell that makes hydrochloric acid. 
C) An enzyme that digests polymers by inserting water molecules between monomers. 
D) A cell that absorbs water in the colon.

Question 16

What is the name of structure D?

Accepted Answer

A) Appendix 
B) Anus 
C) Transverse colon 
D) Rectum 
A) Appendix 
B) Anus 
C) Transverse colon 
D) Rectum

Question 17

Which teeth are for piercing and ripping?

Accepted Answer

A) Incisors 
B) Canines 
C) Premolars 
D) Molars 
A) Incisors 
B) Canines 
C) Premolars 
D) Molars

Question 18

What is the function of structure B?

Accepted Answer

A) Begin digestion of carbohydrates 
B) Begin digestion of proteins 
C) Absorption of lipids 
D) Absorption of proteins 
A) Begin digestion of carbohydrates 
B) Begin digestion of proteins 
C) Absorption of lipids 
D) Absorption of proteins

Question 19

Once food passes the lower esophageal sphincter,it cannot reverse and flow backwards.

Accepted Answer

A) True 
 B)False

Question 20

Most digestion and absorption occurs in the:

Accepted Answer

A) oral cavity. 
B) esophagus. 
C) stomach. 
D) small intestine. 
A) oral cavity. 
B) esophagus. 
C) stomach. 
D) small intestine.

Exam 15: The Digestive System

The stomach is involved only in chemical digestion.

During phase B the release of which hormone increases?

Chemical digestion of carbohydrates takes place:

Where does peristalsis start during deglutition?

What is the purpose of the acidic conditions of the stomach?

What is the function of structure C?

Where is pepsin produced?

Mechanical digestion alters chemical bonds.

All digestive enzymes except for two,act in the small intestine.

What is the name of the process pictured here?

Cows feed on grass which humans can't digest and therefore expand the food supply.

The hepatic portal system is composed of blood vessels that bring _________.

The tonsils and MALT are both immune structures associated with the digestive system.

What is the name of the structure labeled A?

What is a hydrolase?

What is the name of structure D?

Which teeth are for piercing and ripping?

What is the function of structure B?

Once food passes the lower esophageal sphincter,it cannot reverse and flow backwards.

Most digestion and absorption occurs in the:

What Is Life

Where Do We Come From and Where Do We Fit

Life Has a Unique Chemistry

Organization and Communication

Tissues

The Skeletomuscular System

The Nervous System

The Special Senses

Immunity and the Lymphatic System

Infectious Disease and Epidemiology

Cancer

The Cardiovascular System

The Respiratory System: Movement of Air

Nutrition: You Are What You Eat

The Urinary System

The Endocrine System and Development

The Reproductive Systems: Maintaining the Species

Pregnancy: Development From Conception to Newborn

Inheritance, Genetics, and Molecular Biology

Populations Evolve in Ecosystems

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