Question 1

Which enzyme breaks down protein-forming polypeptides in the stomach?

Accepted Answer

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

Question 2

MATCHING
Match the hormone from the small intestine with its action.Hormones may be used more than once.
-Stimulates pancreas to secrete alkaline pancreatic juice

Accepted Answer

A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide 
A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide B

Question 3

When vitamin B12 is bound to intrinsic factor,it is resistant to digestion.

Accepted Answer

A) True 
 B)False  True

Question 4

The liver plays an important role in destroying intestinal bacteria.

Accepted Answer

A) True 
 B)False

Question 5

MATCHING
Match the hormone from the small intestine with its action.Hormones may be used more than once.
-Stimulates the liver to secrete bile

Accepted Answer

A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide 
A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide

Question 6

Saliva contains which immunoglobulin?

Accepted Answer

A)  Immunoglobulin A 
B)  Immunoglobulin E 
C)  Immunoglobulin G 
D)  Immunoglobulin M 
A)  Immunoglobulin A 
B)  Immunoglobulin E 
C)  Immunoglobulin G 
D)  Immunoglobulin M

Question 7

Which cells in the stomach secrete hydrochloric acid?

Accepted Answer

A)  Parietal cells 
B)  Chief cells 
C)  G cells 
D)  H cells 
A)  Parietal cells 
B)  Chief cells 
C)  G cells 
D)  H cells

Question 8

The entire epithelial population of the small intestines is replaced about every 30 to 45 days.

Accepted Answer

A) True 
 B)False

Question 9

What is the effect of the process of conjugation of bilirubin in the liver?

Accepted Answer

A)  It transforms unconjugated (fat-soluble)bilirubin into urobilinogen. 
B)  It transforms unconjugated (fat-soluble)bilirubin into conjugated (water-soluble)bilirubin. 
C)  It transforms conjugated (water-soluble)bilirubin into unconjugated (fat-soluble)bilirubin. 
D)  It transforms conjugated (water-soluble)bilirubin into urobilinogen. 
A)  It transforms unconjugated (fat-soluble)bilirubin into urobilinogen. 
B)  It transforms unconjugated (fat-soluble)bilirubin into conjugated (water-soluble)bilirubin. 
C)  It transforms conjugated (water-soluble)bilirubin into unconjugated (fat-soluble)bilirubin. 
D)  It transforms conjugated (water-soluble)bilirubin into urobilinogen.

Question 10

Which pancreatic enzymes break down carbohydrates?

Accepted Answer

A)  Trypsin 
B)  Amylase 
C)  Lipase 
D)  Chymotrypsin 
E)  Carboxypeptidase 
A)  Trypsin 
B)  Amylase 
C)  Lipase 
D)  Chymotrypsin 
E)  Carboxypeptidase

Question 11

Where are lymphocytes,plasma cells,and macrophages produced in the small intestine?

Accepted Answer

A)  In the brush border 
B)  In the microvilli 
C)  In the lamina propria 
D)  In the crypts of Lieberkühn 
A)  In the brush border 
B)  In the microvilli 
C)  In the lamina propria 
D)  In the crypts of Lieberkühn

Question 12

Which statement is false about characteristics of vitamin B12?

Accepted Answer

A)  Normally the liver can store vitamin B12 for years. 
B)  Vitamin B12 attaches to the carrier protein transcobalamin and is transported into tissue. 
C)  Vitamin B12 is necessary for platelet maturation. 
D)  Vitamin B12 binds to intrinsic factor and is absorbed in the terminal ileum. 
A)  Normally the liver can store vitamin B12 for years. 
B)  Vitamin B12 attaches to the carrier protein transcobalamin and is transported into tissue. 
C)  Vitamin B12 is necessary for platelet maturation. 
D)  Vitamin B12 binds to intrinsic factor and is absorbed in the terminal ileum.

Question 13

Chloride actively enters the cell in exchange for _____ to maintain electroneutrality in the ileum.

Accepted Answer

A)  sodium 
B)  phosphate 
C)  sulfate 
D)  bicarbonate 
A)  sodium 
B)  phosphate 
C)  sulfate 
D)  bicarbonate

Question 14

MATCHING
Match the hormone from the small intestine with its action.Hormones may be used more than once.
-Enhances insulin release,lipolysis,and ketogenesis

Accepted Answer

A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide 
A) Peptide YY 
B) Secretin 
C) Cholecystokinin 
D) Enteroglucagon 
E) Pancreatic polypeptide

Question 15

Salivary  -amylase initiates the digestion of _____ in the mouth and stomach.

Accepted Answer

A)  proteins 
B)  carbohydrates 
C)  fats 
D)  fiber 
A)  proteins 
B)  carbohydrates 
C)  fats 
D)  fiber

Question 16

The intestinal tract is sterile at birth.

Accepted Answer

A) True 
 B)False

Question 17

Which water-soluble vitamins are dependent on sodium for absorption?

Accepted Answer

A)  Vitamin B6 and niacin 
B)  Vitamin B1 and vitamin B2 
C)  Vitamin C and folic acid 
D)  Vitamin B12 and pantothenic acid 
A)  Vitamin B6 and niacin 
B)  Vitamin B1 and vitamin B2 
C)  Vitamin C and folic acid 
D)  Vitamin B12 and pantothenic acid

Question 18

Hydrolase cleaves fatty acids from phospholipids and phospholipase breaks cholesterol esters into fatty acids and cholesterol.

Accepted Answer

A) True 
 B)False

Question 19

Bilirubin is a byproduct of the destruction of aged _____ that are destroyed by macrophages in the spleen and liver.

Accepted Answer

A)  platelets 
B)  protein 
C)  leukocytes 
D)  erythrocytes 
E)  fats 
A)  platelets 
B)  protein 
C)  leukocytes 
D)  erythrocytes 
E)  fats

Question 20

The chief cells of the gastric glands secrete pepsinogen,which breaks down carbohydrates.

Accepted Answer

A) True 
 B)False

Exam 36: Structure and Function of the Digestive System

Which enzyme breaks down protein-forming polypeptides in the stomach?

MATCHING Match the hormone from the small intestine with its action.Hormones may be used more than once. -Stimulates pancreas to secrete alkaline pancreatic juice

When vitamin B12 is bound to intrinsic factor,it is resistant to digestion.

The liver plays an important role in destroying intestinal bacteria.

MATCHING Match the hormone from the small intestine with its action.Hormones may be used more than once. -Stimulates the liver to secrete bile

Saliva contains which immunoglobulin?

Which cells in the stomach secrete hydrochloric acid?

The entire epithelial population of the small intestines is replaced about every 30 to 45 days.

What is the effect of the process of conjugation of bilirubin in the liver?

Which pancreatic enzymes break down carbohydrates?

Where are lymphocytes,plasma cells,and macrophages produced in the small intestine?

Which statement is false about characteristics of vitamin B12?

Chloride actively enters the cell in exchange for _____ to maintain electroneutrality in the ileum.

MATCHING Match the hormone from the small intestine with its action.Hormones may be used more than once. -Enhances insulin release,lipolysis,and ketogenesis

Salivary -amylase initiates the digestion of _____ in the mouth and stomach.

The intestinal tract is sterile at birth.

Which water-soluble vitamins are dependent on sodium for absorption?

Hydrolase cleaves fatty acids from phospholipids and phospholipase breaks cholesterol esters into fatty acids and cholesterol.

Bilirubin is a byproduct of the destruction of aged _____ that are destroyed by macrophages in the spleen and liver.

The chief cells of the gastric glands secrete pepsinogen,which breaks down carbohydrates.

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Innate Immunity Including Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation Including Hypersensitivies

Infection Including Hivaids

Stress and Disease

Biology of Cancer

Tumor Invasion and Metastasis

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Concepts of Neurologic Dysfunction

Disorders of Neurologic Function

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Reproductive Systems

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations in Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Pulmonary Function in Children

Filters

When vitamin B₁₂ is bound to intrinsic factor,it is resistant to digestion.

Which statement is false about characteristics of vitamin B₁₂?