Question 1

What happens in the chemical process of hydrolysis?

Accepted Answer

Hydrolysis is a chemical process in whic

Question 2

After the absorption of a large meal,high levels of chylomicrons would be found in the:

Accepted Answer

A)  lacteals of the villi. 
B)  blood in the inferior vena cava. 
C)  blood in the hepatic portal system. 
D)  Both A and C are correct. 
A)  lacteals of the villi. 
B)  blood in the inferior vena cava. 
C)  blood in the hepatic portal system. 
D)  Both A and C are correct.

Question 3

The parietal cells of the stomach do not produce which of the following?

Accepted Answer

A)  Pepsinogen 
B)  Hydrochloric acid 
C)  Intrinsic factor 
D)  The parietal cell of the stomach produces all of the above. 
A)  Pepsinogen 
B)  Hydrochloric acid 
C)  Intrinsic factor 
D)  The parietal cell of the stomach produces all of the above.

Question 4

Match each of the digestive juices and enzymes with its corresponding description.
-pancreatic enzyme that works on proteins

Accepted Answer

A) Amylase 
B) Bile 
C) Lactase 
D) Maltase 
E) Pepsin
F)Peptidase
G)Sucrase
H)Trypsin
I)Lipase 
A) Amylase 
B) Bile 
C) Lactase 
D) Maltase 
E) Pepsin
F)Peptidase
G)Sucrase
H)Trypsin
I)Lipase

Question 5

Some drugs cannot be taken orally even if they are well absorbed by the small intestine because they are completely broken down by the liver.Explain why these drugs would never reach the general circulation.

Accepted Answer

These drugs would never reach the genera

Question 6

Explain why salivary amylase is able to digest such a small amount of carbohydrate.

Accepted Answer

Salivary amylase is able to digest a sma

Question 7

What substances are found in pancreatic juice? How are the inactive substances in pancreatic juice activated?

Accepted Answer

Pancreatic juice is a critical digestive

Question 8

Which of the following is not true of enzymes?

Accepted Answer

A)  They accelerate chemical reactions. 
B)  They change chemically and are in the end products of the reaction. 
C)  They are vital to chemical reactions. 
D)  Many contain vitamins in their structure. 
A)  They accelerate chemical reactions. 
B)  They change chemically and are in the end products of the reaction. 
C)  They are vital to chemical reactions. 
D)  Many contain vitamins in their structure.

Question 9

The major site for the absorption of the end products of digestion is the:

Accepted Answer

A)  stomach. 
B)  small intestine. 
C)  cecum. 
D)  large intestine. 
A)  stomach. 
B)  small intestine. 
C)  cecum. 
D)  large intestine.

Question 10

Match each primary mechanism of the digestive system with its corresponding definition.
-a group of processes that breaks complex nutrients into simpler ones,thus facilitating their absorption (includes both mechanical and chemical processes)

Accepted Answer

A) Motility 
B) Ingestion 
C) Elimination 
D) Secretion 
E) Digestion
F)Absorption 
A) Motility 
B) Ingestion 
C) Elimination 
D) Secretion 
E) Digestion
F)Absorption

Question 11

Match each of the digestive juices and enzymes with its corresponding description.
-major enzyme in stomach associated with protein breakdown

Accepted Answer

A) Amylase 
B) Bile 
C) Lactase 
D) Maltase 
E) Pepsin
F)Peptidase
G)Sucrase
H)Trypsin
I)Lipase 
A) Amylase 
B) Bile 
C) Lactase 
D) Maltase 
E) Pepsin
F)Peptidase
G)Sucrase
H)Trypsin
I)Lipase

Question 12

The sodium cotransport or coupled transport acts to transport sodium ions and glucose molecules _____ the GI lumen.

Accepted Answer

A)  passively out of 
B)  passively into 
C)  actively out of 
D)  actively into 
A)  passively out of 
B)  passively into 
C)  actively out of 
D)  actively into

Question 13

Match each primary mechanism of the digestive system with its corresponding definition.
-process of taking food into the mouth,starting it on its journey through the digestive tract

Accepted Answer

A) Motility 
B) Ingestion 
C) Elimination 
D) Secretion 
E) Digestion
F)Absorption 
A) Motility 
B) Ingestion 
C) Elimination 
D) Secretion 
E) Digestion
F)Absorption

Question 14

The disaccharide sucrose is made up of which two saccharide units?

Accepted Answer

A)  Glucose and glucose 
B)  Glucose and fructose 
C)  Glucose and galactose 
D)  None of the above 
A)  Glucose and glucose 
B)  Glucose and fructose 
C)  Glucose and galactose 
D)  None of the above

Question 15

Explain the process of protein digestion.

Accepted Answer

Protein digestion is the process by whic

Question 16

Which of these is not an example of mechanical digestion?

Accepted Answer

A)  Moistening the food 
B)  Changing food from large to small particles 
C)  Propelling food through the digestive tract 
D)  All of the above are examples of mechanical digestion. 
A)  Moistening the food 
B)  Changing food from large to small particles 
C)  Propelling food through the digestive tract 
D)  All of the above are examples of mechanical digestion.

Question 17

The intestinal hormone cholecystokinin:

Accepted Answer

A)  causes the pancreas to increase exocrine secretions high in enzyme content. 
B)  opposes the influence of gastrin on gastric parietal cells. 
C)  stimulates the contraction of the gallbladder. 
D)  does all of the above. 
A)  causes the pancreas to increase exocrine secretions high in enzyme content. 
B)  opposes the influence of gastrin on gastric parietal cells. 
C)  stimulates the contraction of the gallbladder. 
D)  does all of the above.

Question 18

The hormone that stimulates the release of bicarbonate substance from the pancreas is:

Accepted Answer

A)  enterogastrone. 
B)  secretin. 
C)  gastrin. 
D)  cholecystokinin-pancreozymin. 
A)  enterogastrone. 
B)  secretin. 
C)  gastrin. 
D)  cholecystokinin-pancreozymin.

Question 19

Most enzymes catalyze a chemical reaction in both directions.Explain what this means.

Accepted Answer

Enzymes are biological catalysts that sp

Question 20

The purpose of peristalsis is to:

Accepted Answer

A)  break apart chunks of food and mix it in digestive juices. 
B)  propel food forward along the GI tract. 
C)  absorb food. 
D)  enable swallowing. 
A)  break apart chunks of food and mix it in digestive juices. 
B)  propel food forward along the GI tract. 
C)  absorb food. 
D)  enable swallowing.

Exam 29: B: Physiology of the Digestive System

What happens in the chemical process of hydrolysis?

After the absorption of a large meal,high levels of chylomicrons would be found in the:

The parietal cells of the stomach do not produce which of the following?

Match each of the digestive juices and enzymes with its corresponding description. -pancreatic enzyme that works on proteins

Some drugs cannot be taken orally even if they are well absorbed by the small intestine because they are completely broken down by the liver.Explain why these drugs would never reach the general circulation.

Explain why salivary amylase is able to digest such a small amount of carbohydrate.

What substances are found in pancreatic juice? How are the inactive substances in pancreatic juice activated?

Which of the following is not true of enzymes?

The major site for the absorption of the end products of digestion is the:

Match each primary mechanism of the digestive system with its corresponding definition. -a group of processes that breaks complex nutrients into simpler ones,thus facilitating their absorption (includes both mechanical and chemical processes)

Match each of the digestive juices and enzymes with its corresponding description. -major enzyme in stomach associated with protein breakdown

The sodium cotransport or coupled transport acts to transport sodium ions and glucose molecules _____ the GI lumen.

Match each primary mechanism of the digestive system with its corresponding definition. -process of taking food into the mouth,starting it on its journey through the digestive tract

The disaccharide sucrose is made up of which two saccharide units?

Explain the process of protein digestion.

Which of these is not an example of mechanical digestion?

The intestinal hormone cholecystokinin:

The hormone that stimulates the release of bicarbonate substance from the pancreas is:

Most enzymes catalyze a chemical reaction in both directions.Explain what this means.

The purpose of peristalsis is to:

A: Organization of the Body

B: Organization of the Body

A: The Chemical Basis of Life

B: The Chemical Basis of Life

A: Anatomy of Cells

B: Anatomy of Cells

Physiology of Cells

Cell Growth and Reproduction

Tissues

A: Skin and Its Appendages

B: Skin and Its Appendages

A: Skeletal Tissues

B: Skeletal Tissues

Skeletal System

A: Articulations

B: Articulations

A: Anatomy of the Muscular System

B: Anatomy of the Muscular System

A: Physiology of the Muscular System

B: Physiology of the Muscular System

A: Nervous System Cells

B: Nervous System Cells

A: Central Nervous System

B: Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

A: Sense Organs

B: Sense Organs

Endocrine System

Endocrine Glands

Blood

Anatomy of the Cardiovascular System

A: Physiology of the Cardiovascular System

B: Physiology of the Cardiovascular System

Lymphatic System

A: Immune System

B: Immune System

Stress

Anatomy of the Respiratory System

A: Physiology of the Respiratory System

B: Physiology of the Respiratory System

A: Anatomy of the Digestive System

B: Anatomy of the Digestive System

A: Physiology of the Digestive System

A: Nutrition and Metabolism

B: Nutrition and Metabolism

A: Urinary System

B: Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

A: Female Reproductive System

B: Female Reproductive System

A: Growth and Development

B: Growth and Development

A: Genetics and Heredity

B: Genetics and Heredity

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