Question 1

Knoblike sacs where the inner colon lining protrudes through the intestinal wall are called

Accepted Answer

A)  diverticula. 
B)  ulcers. 
C)  haustra 
D)  sphincters. 
E)  appendices. 
A)  diverticula. 
B)  ulcers. 
C)  haustra 
D)  sphincters. 
E)  appendices.

Question 2

Mucins in saliva are used to

Accepted Answer

A)  digest starch. 
B)  digest fats. 
C)  digest proteins. 
D)  bind food together to from a bolus. 
E)  maintain the pH of the mouth. 
A)  digest starch. 
B)  digest fats. 
C)  digest proteins. 
D)  bind food together to from a bolus. 
E)  maintain the pH of the mouth.

Question 3

Stretched out, an adult's gastrointestinal tract would be

Accepted Answer

A)  10 - 15 feet. 
B)  15 - 20 feet. 
C)  21 - 30 feet. 
D)  30 - 35 feet. 
E)  5 - 10 feet. 
A)  10 - 15 feet. 
B)  15 - 20 feet. 
C)  21 - 30 feet. 
D)  30 - 35 feet. 
E)  5 - 10 feet.

Question 4

Gallstones are made of

Accepted Answer

A)  calcium. 
B)  sodium. 
C)  iron. 
D)  cholesterol. 
E)  oxalates. 
A)  calcium. 
B)  sodium. 
C)  iron. 
D)  cholesterol. 
E)  oxalates.

Question 5

Selecting the Exception Four of the five answers listed below release secretions that assist digestion. Select the exception.

Accepted Answer

A)  salivary gland 
B)  esophagus 
C)  pancreas 
D)  gall bladder 
E)  liver 
A)  salivary gland 
B)  esophagus 
C)  pancreas 
D)  gall bladder 
E)  liver

Question 6

Which of the following layers forms the outer covering of the gastrointestinal tract?

Accepted Answer

A)  serosa 
B)  mucosa 
C)  conjunctiva 
D)  muscle layer 
E)  submucosa 
A)  serosa 
B)  mucosa 
C)  conjunctiva 
D)  muscle layer 
E)  submucosa

Question 7

Sphincters

Accepted Answer

A)  are muscles in longitudinal arrangement. 
B)  prevent movement of material through the digestive tract. 
C)  are smooth muscles. 
D)  are only found at the beginning of the stomach. 
E)  can contract but not relax. 
A)  are muscles in longitudinal arrangement. 
B)  prevent movement of material through the digestive tract. 
C)  are smooth muscles. 
D)  are only found at the beginning of the stomach. 
E)  can contract but not relax.

Question 8

Digestion of tissues in the stomach wall by gastric juice is usually prevented by

Accepted Answer

A)  only the secretion bicarbonate. 
B)  a covering of mucus, exclusively. 
C)  intrinsic factor alone. 
D)  secretion of bicarbonate and a covering of mucus. 
E)  secretion of protein-digesting enzymes in inactive form and a covering of mucus plus intrinsic factor. 
A)  only the secretion bicarbonate. 
B)  a covering of mucus, exclusively. 
C)  intrinsic factor alone. 
D)  secretion of bicarbonate and a covering of mucus. 
E)  secretion of protein-digesting enzymes in inactive form and a covering of mucus plus intrinsic factor.

Question 9

Which vitamin is used for connective tissue formation?

Accepted Answer

A)  B12 
B)  B1 
C)  A 
D)  E 
E)  K 
A)  B12 
B)  B1 
C)  A 
D)  E 
E)  K

Question 10

Which index ranks foods by their effect on blood glucose during the first two hours after a meal?

Accepted Answer

A)  glycemic index 
B)  glycolic index 
C)  glycolytic index 
D)  glycerinic index 
E)  glycogenic index 
A)  glycemic index 
B)  glycolic index 
C)  glycolytic index 
D)  glycerinic index 
E)  glycogenic index

Question 11

The function of the appendix is

Accepted Answer

A)  to digest proteins. 
B)  not clear, but may relate to combating ingested bacteria. 
C)  to digest fats. 
D)  to absorb glucose. 
E)  to absorb amino acids. 
A)  to digest proteins. 
B)  not clear, but may relate to combating ingested bacteria. 
C)  to digest fats. 
D)  to absorb glucose. 
E)  to absorb amino acids.

Question 12

Which hormone increases HCl secretion?

Accepted Answer

A)  gastrin 
B)  somatostatin 
C)  leptin 
D)  ghrelin 
E)  secretin 
A)  gastrin 
B)  somatostatin 
C)  leptin 
D)  ghrelin 
E)  secretin

Question 13

Which of the following bacteria is known to cause the formation of peptic ulcers?

Accepted Answer

A)  Helicobacter pylori 
B)  Staphylococcus aureus 
C)  Streptococcus pyogenes 
D)  Escherichia coli 
E)  Micrococcus luteus 
A)  Helicobacter pylori 
B)  Staphylococcus aureus 
C)  Streptococcus pyogenes 
D)  Escherichia coli 
E)  Micrococcus luteus

Question 14

Which of the following is NOT an active form of an enzyme?

Accepted Answer

A)  trypsin 
B)  amylase 
C)  pepsin 
D)  pepsinogen 
E)  chymotrypsin 
A)  trypsin 
B)  amylase 
C)  pepsin 
D)  pepsinogen 
E)  chymotrypsin

Question 15

The process that releases digestive enzymes is

Accepted Answer

A)  absorption. 
B)  assimilation. 
C)  secretion. 
D)  digestion. 
E)  elimination. 
A)  absorption. 
B)  assimilation. 
C)  secretion. 
D)  digestion. 
E)  elimination.

Question 16

Chewing

Accepted Answer

A)  chemically breaks up the food. 
B)  aids in forming the food into a consistency suitable for swallowing. 
C)  decreases the surface area of food exposed to digestive enzymes. 
D)  is the first phase of peristalsis. 
E)  requires teeth. 
A)  chemically breaks up the food. 
B)  aids in forming the food into a consistency suitable for swallowing. 
C)  decreases the surface area of food exposed to digestive enzymes. 
D)  is the first phase of peristalsis. 
E)  requires teeth.

Question 17

Which hormone, secreted by glands in the intestine and stomach after a meal, acts to suppress the appetite?

Accepted Answer

A)  ghrelin 
B)  leptin 
C)  PYY 
D)  gastrin 
E)  pepsin 
A)  ghrelin 
B)  leptin 
C)  PYY 
D)  gastrin 
E)  pepsin

Question 18

Which hormone shuts down HCl secretion?

Accepted Answer

A)  gastrin 
B)  somatostatin 
C)  leptin 
D)  ghrelin 
E)  secretin 
A)  gastrin 
B)  somatostatin 
C)  leptin 
D)  ghrelin 
E)  secretin

Question 19

The large intestine begins as the

Accepted Answer

A)  appendix. 
B)  duodenum. 
C)  ileum. 
D)  cecum. 
E)  jejunum. 
A)  appendix. 
B)  duodenum. 
C)  ileum. 
D)  cecum. 
E)  jejunum.

Question 20

Trypsin and chymotrypsin digest

Accepted Answer

A)  fats. 
B)  proteins. 
C)  nucleic acids. 
D)  carbohydrates. 
E)  vitamins. 
A)  fats. 
B)  proteins. 
C)  nucleic acids. 
D)  carbohydrates. 
E)  vitamins.

Exam 11: Digestion and Nutrition

Knoblike sacs where the inner colon lining protrudes through the intestinal wall are called

Mucins in saliva are used to

Stretched out, an adult's gastrointestinal tract would be

Gallstones are made of

Selecting the Exception Four of the five answers listed below release secretions that assist digestion. Select the exception.

Which of the following layers forms the outer covering of the gastrointestinal tract?

Sphincters

Digestion of tissues in the stomach wall by gastric juice is usually prevented by

Which vitamin is used for connective tissue formation?

Which index ranks foods by their effect on blood glucose during the first two hours after a meal?

The function of the appendix is

Which hormone increases HCl secretion?

Which of the following bacteria is known to cause the formation of peptic ulcers?

Which of the following is NOT an active form of an enzyme?

The process that releases digestive enzymes is

Chewing

Which hormone, secreted by glands in the intestine and stomach after a meal, acts to suppress the appetite?

Which hormone shuts down HCl secretion?

The large intestine begins as the

Trypsin and chymotrypsin digest

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

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The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

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