Question 1

An end product of fat digestion is:

Accepted Answer

A)  glycerol. 
B)  glucose. 
C)  glycogen. 
D)  galactose. 
A)  glycerol. 
B)  glucose. 
C)  glycogen. 
D)  galactose.

Question 2

Allen was an alcoholic. He had a condition known as alcoholic hepatitis. This condition causes inflammation of the liver and results in reduced production and secretion of bile. What digestive complication does this produce?

Accepted Answer

Allen's condition, alcoholic hepatitis,

Question 3

The only voluntary activity of the GI tract is swallowing.

Accepted Answer

A) True 
 B)False

Question 4

Micelles are formed in the GI lumen.

Accepted Answer

A) True 
 B)False

Question 5

Bicarbonates are useful in the GI tract for neutralizing hydrochloric acid.

Accepted Answer

A) True 
 B)False

Question 6

Lysophosphatide is a possible end product of fat digestion.

Accepted Answer

A) True 
 B)False

Question 7

The process of emptying the stomach takes about 12 hours after a meal.

Accepted Answer

A) True 
 B)False

Question 8

The stomach releases gastric inhibitory peptide to slow down peristalsis in the duodenum.

Accepted Answer

A) True 
 B)False

Question 9

Paracellular absorption is the absorption of nutrients between cells.

Accepted Answer

A) True 
 B)False

Question 10

The hormones GIP, secretin, and CCK are formed in the intestinal mucosa.

Accepted Answer

A) True 
 B)False

Question 11

Enzymes are usually defined as inorganic catalysts.

Accepted Answer

A) True 
 B)False

Question 12

Which statement best explains the process of absorption?

Accepted Answer

A)  Absorption is the process of taking food into the mouth and starting it on its journey through the digestive tract. 
B)  Absorption releases digestive juices (containing enzymes, acids, bases, mucus, bile, or other products that facilitate digestion). 
C)  Absorption is the movement by the muscular components of the digestive tube, including processes of mechanical digestion; examples include peristalsis and segmentation. 
D)  Absorption is the passage of substances (notably digested foods, water, salts, and vitamins) through the intestinal mucosa into the blood or lymph. 
A)  Absorption is the process of taking food into the mouth and starting it on its journey through the digestive tract. 
B)  Absorption releases digestive juices (containing enzymes, acids, bases, mucus, bile, or other products that facilitate digestion). 
C)  Absorption is the movement by the muscular components of the digestive tube, including processes of mechanical digestion; examples include peristalsis and segmentation. 
D)  Absorption is the passage of substances (notably digested foods, water, salts, and vitamins) through the intestinal mucosa into the blood or lymph.

Question 13

One important role of the salivary glands is the production of mucus, because they are the only glands that produce it.

Accepted Answer

A) True 
 B)False

Question 14

The bolus of food is formed during the pharyngeal stage of deglutition.

Accepted Answer

A) True 
 B)False

Question 15

Polysaccharides are hydrolyzed into disaccharides by enzymes known as:

Accepted Answer

A)  lipase. 
B)  proteases. 
C)  maltase. 
D)  amylase. 
A)  lipase. 
B)  proteases. 
C)  maltase. 
D)  amylase.

Question 16

Match each structure with its function, description, or the enzyme it produces.
-Organ in which trypsinogen is made

Accepted Answer

A) Gallbladder 
B) Salivary gland 
C) Pancreas 
D) Stomach 
E) Small intestine
F)Liver 
A) Gallbladder 
B) Salivary gland 
C) Pancreas 
D) Stomach 
E) Small intestine
F)Liver

Question 17

Peristalsis is a back-and-forth action that breaks apart chunks of food and mixes in digestive juices.

Accepted Answer

A) True 
 B)False

Question 18

Bicarbonates are useful in the GI tract to:

Accepted Answer

A)  neutralize hydrochloric acid. 
B)  break down fats. 
C)  activate secretin. 
D)  activate pepsin. 
A)  neutralize hydrochloric acid. 
B)  break down fats. 
C)  activate secretin. 
D)  activate pepsin.

Question 19

The optimal pH for the functioning of pepsin is 3; the optimal pH for the functioning of trypsin is 7. Explain why this difference would be expected.

Accepted Answer

The difference in optimal pH for the fun

Question 20

The process of fat emulsification consists of:

Accepted Answer

A)  chemically breaking down fat molecules. 
B)  the secretion of digestive juices for fat digestion. 
C)  absorption of fats. 
D)  breaking fats into small droplets. 
A)  chemically breaking down fat molecules. 
B)  the secretion of digestive juices for fat digestion. 
C)  absorption of fats. 
D)  breaking fats into small droplets.

Exam 40: Digestion and Absorption

An end product of fat digestion is:

Allen was an alcoholic. He had a condition known as alcoholic hepatitis. This condition causes inflammation of the liver and results in reduced production and secretion of bile. What digestive complication does this produce?

The only voluntary activity of the GI tract is swallowing.

Micelles are formed in the GI lumen.

Bicarbonates are useful in the GI tract for neutralizing hydrochloric acid.

Lysophosphatide is a possible end product of fat digestion.

The process of emptying the stomach takes about 12 hours after a meal.

The stomach releases gastric inhibitory peptide to slow down peristalsis in the duodenum.

Paracellular absorption is the absorption of nutrients between cells.

The hormones GIP, secretin, and CCK are formed in the intestinal mucosa.

Enzymes are usually defined as inorganic catalysts.

Which statement best explains the process of absorption?

One important role of the salivary glands is the production of mucus, because they are the only glands that produce it.

The bolus of food is formed during the pharyngeal stage of deglutition.

Polysaccharides are hydrolyzed into disaccharides by enzymes known as:

Match each structure with its function, description, or the enzyme it produces. -Organ in which trypsinogen is made

Peristalsis is a back-and-forth action that breaks apart chunks of food and mixes in digestive juices.

Bicarbonates are useful in the GI tract to:

The optimal pH for the functioning of pepsin is 3; the optimal pH for the functioning of trypsin is 7. Explain why this difference would be expected.

The process of fat emulsification consists of:

Organization of the Body

Homeostasis

Chemical Basis of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange & Transport

Upper Digestive Tract

Lower Digestive Tract

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid Base Balance

Male Reproductive System

Female Reproductive System

Growth and Development

Genetics and Heredity

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