Question 1

Fats are digested to _______________.

Accepted Answer

A) fatty acids and amino acids 
B) cellulose 
C)  fatty acids and glycerol 
D)  adipose 
A) fatty acids and amino acids 
B) cellulose 
C)  fatty acids and glycerol 
D)  adipose

Question 2

Bile salts are important in fat digestion and absorption.

Accepted Answer

A) True 
 B)False

Question 3

Which of these statements does NOT pertain to peristaltic antral contractions?

Accepted Answer

A) They occur at a rate of 10/min. 
B) They are responsible for emptying food into the duodenum. 
C)  They are responsible for mixing food and gastric enzymes within the antrum. 
D)  They occur at the pyloric antrum. 
A) They occur at a rate of 10/min. 
B) They are responsible for emptying food into the duodenum. 
C)  They are responsible for mixing food and gastric enzymes within the antrum. 
D)  They occur at the pyloric antrum.

Question 4

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.)
a.bile salts
b.pepsin(ogen)
c.amylase
d.lipase
e.trypsin(ogen)
-activated by enterokinase

Accepted Answer

The answer of Match the digestive secretions, labelled a. through...

Question 5

Match the descriptions, labelled a. through l., with the items listed.
a.secretes NaHCOS1U1B13S1U1B0
b.enzyme for protein digestion secreted by pancreas
c.activates pepsinogen
d.enzyme for fat digestion
e.functions inside brush border
f.secretes gastrin
g.stimulates parietal and chief cells
h.enzyme for carbohydrate digestion that functions primarily in the body of the stomach
i.secreted by chief cells
j.secretes pancreatic enzymes
k.secreted by duodenal cells in response to the presence of acid
l.stimulates pancreatic acinar cells
-salivary amylase

Accepted Answer

The answer of Match the descriptions, labelled a. through l.,...

Question 6

The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are ____________________, ____________________, and ____________________.

Accepted Answer

circular f

Question 7

Gastric storage takes place in the ____________________ [what part?] of the stomach, whereas gastric mixing takes place in the ____________________.

Accepted Answer

The answer of Gastric storage takes place in the ____________________...

Question 8

Which of these statements does NOT describe secretin?

Accepted Answer

A) Its most potent stimulus for secretion is the presence of fat in the duodenum. 
B) It stimulates pancreatic enzyme secretion. 
C)  It stimulates the secretion of bicarbonate. 
D)  It stimulates the acinar cells. 
A) Its most potent stimulus for secretion is the presence of fat in the duodenum. 
B) It stimulates pancreatic enzyme secretion. 
C)  It stimulates the secretion of bicarbonate. 
D)  It stimulates the acinar cells.

Question 9

Chymotrypsinogen is activated by enterokinase.

Accepted Answer

A) True 
 B)False

Question 10

The pancreatic ____________________ secretion neutralizes acidic gastric contents in the duodenal lumen.

Accepted Answer

The answer of The pancreatic ____________________ secretion neutralizes acidic gastric...

Question 11

Which of these statements does NOT describe the digestion of polysaccharides?

Accepted Answer

A) It is accomplished using enzymes. 
B) It utilizes hydrolysis. 
C)  It utilizes dehydration synthesis. 
D)  It adds water at the bond site. 
A) It is accomplished using enzymes. 
B) It utilizes hydrolysis. 
C)  It utilizes dehydration synthesis. 
D)  It adds water at the bond site.

Question 12

What is the primary absorptive organ of the digestive system?

Accepted Answer

A) salivary glands 
B) oral cavity 
C)  stomach 
D)  small intestine 
A) salivary glands 
B) oral cavity 
C)  stomach 
D)  small intestine

Question 13

____________________ are the microscopic projections of the absorptive cells of the small intestine.

Accepted Answer

The answer of ____________________ are the microscopic projections of the...

Question 14

Humans are not capable of digesting cellulose, but some of the enteric bacteria have this capability.

Accepted Answer

A) True 
 B)False

Question 15

What are the symptoms of constipation (e.g., abdominal discomfort, headache, and nausea) due to?

Accepted Answer

A) prolonged distention of the large intestine by the fecal mass 
B) absorption of toxins of bacterial origin from the colon 
C)  inhibition of gastric emptying 
D)  exhaustion due to frequent straining movements in an effort to initiate the defecation reflex 
A) prolonged distention of the large intestine by the fecal mass 
B) absorption of toxins of bacterial origin from the colon 
C)  inhibition of gastric emptying 
D)  exhaustion due to frequent straining movements in an effort to initiate the defecation reflex

Question 16

Which of these substances do(es) NOT directly enter the blood upon being absorbed from the digestive tract?

Accepted Answer

A) monoglycerides and free fatty acids 
B) alcohol 
C)  glucose 
D)  amino acids 
A) monoglycerides and free fatty acids 
B) alcohol 
C)  glucose 
D)  amino acids

Question 17

Which of these enzymes is NOT secreted into the duodenal lumen?

Accepted Answer

A) aminopeptidase 
B) lipase 
C)  trypsinogen 
D)  procarboxypeptidase 
A) aminopeptidase 
B) lipase 
C)  trypsinogen 
D)  procarboxypeptidase

Question 18

Protein digestion begins in the stomach under the influence of pepsinogen, continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes, and is completed intracellularly in the small intestinal brush border.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following substances do(es) NOT directly enter the blood upon being absorbed from the digestive tract?

Accepted Answer

A) glucose 
B) monoglycerides and free fatty acids 
C)  amino acids 
D)  alcohol 
A) glucose 
B) monoglycerides and free fatty acids 
C)  amino acids 
D)  alcohol

Question 20

Describe gastric regulation and emptying.

Accepted Answer

Gastric regulation and emptying refer to

Fats are digested to _______________.

Bile salts are important in fat digestion and absorption.

Which of these statements does NOT pertain to peristaltic antral contractions?

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.) a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -activated by enterokinase

The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are , , and .

Gastric storage takes place in the [what part?] of the stomach, whereas gastric mixing takes place in the .

Which of these statements does NOT describe secretin?

Chymotrypsinogen is activated by enterokinase.

The pancreatic ____________________ secretion neutralizes acidic gastric contents in the duodenal lumen.

Which of these statements does NOT describe the digestion of polysaccharides?

What is the primary absorptive organ of the digestive system?

____________________ are the microscopic projections of the absorptive cells of the small intestine.

Humans are not capable of digesting cellulose, but some of the enteric bacteria have this capability.

What are the symptoms of constipation (e.g., abdominal discomfort, headache, and nausea) due to?

Which of these substances do(es) NOT directly enter the blood upon being absorbed from the digestive tract?

Which of these enzymes is NOT secreted into the duodenal lumen?

Protein digestion begins in the stomach under the influence of pepsinogen, continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes, and is completed intracellularly in the small intestinal brush border.

Which of the following substances do(es) NOT directly enter the blood upon being absorbed from the digestive tract?

Describe gastric regulation and emptying.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 14: The Urinary System

Fats are digested to _______________.

Bile salts are important in fat digestion and absorption.

Which of these statements does NOT pertain to peristaltic antral contractions?

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.) a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -activated by enterokinase

The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are ____________________, ____________________, and ____________________.

Gastric storage takes place in the ____________________ [what part?] of the stomach, whereas gastric mixing takes place in the ____________________.

Which of these statements does NOT describe secretin?

Chymotrypsinogen is activated by enterokinase.

The pancreatic ____________________ secretion neutralizes acidic gastric contents in the duodenal lumen.

Which of these statements does NOT describe the digestion of polysaccharides?

What is the primary absorptive organ of the digestive system?

____________________ are the microscopic projections of the absorptive cells of the small intestine.

Humans are not capable of digesting cellulose, but some of the enteric bacteria have this capability.

What are the symptoms of constipation (e.g., abdominal discomfort, headache, and nausea) due to?

Which of these substances do(es) NOT directly enter the blood upon being absorbed from the digestive tract?

Which of these enzymes is NOT secreted into the duodenal lumen?

Protein digestion begins in the stomach under the influence of pepsinogen, continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes, and is completed intracellularly in the small intestinal brush border.

Which of the following substances do(es) NOT directly enter the blood upon being absorbed from the digestive tract?

Describe gastric regulation and emptying.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are , , and .

Gastric storage takes place in the [what part?] of the stomach, whereas gastric mixing takes place in the .