Question 1

Which of the following is NOT contained in gastric fluids?

Accepted Answer

A)   acid
B)   mucus
C)   pepsin
D)   salivary amylase
E)   all of these are contained in gastric fluidsF) D) and E)
G) B) and C)

Question 2

Which of the following is true of bulimia nervosa?

Accepted Answer

A)   it is most common among young women
B)   those with this disorder have pitted and brittle teeth
C)   those with this disorder are more susceptible to esophageal cancer
D)   those with this disorder are more susceptible to heart arrhythmia and convulsions
E)   all of these are true of bulimia nervosaF) A) and C)
G) A) and D)

Question 3

If the first sphincter of the digestive tube does not operate properly, what condition could result?

Accepted Answer

A)   stomach ulcers
B)   small intestine ulcers
C)   tooth decay
D)   heartburn
E)   constipationF) C) and D)
G) D) and E)

Question 4

Which of the following is true concerning dietary fiber?

Accepted Answer

A)   polysaccharides when mixed with water form a gel that is insoluble fiber
B)   eating foods high in insoluble fiber lowers the risk of heart disease
C)   cellulose is a form of soluble fiber
D)   eating insoluble fiber helps prevent constipation
E)   all of these are true concerning dietary fiberF) A) and B)
G) A) and C)

Question 5

Use the above figure to answer the following question(s) . Reabsorption of water and essential solutes occurs in the region labeled

Accepted Answer

A)   1.
B)   2.
C)   3.
D)   4.
E)   as none of these.F) B) and C)
G) B) and D)

Question 6

Dialysis refers

Accepted Answer

A)   to kidney replacement.
B)   to the use of artificial kidneys.
C)   to the exchange of solutes between two solutions that are separated by a semi-permeable membrane.
D)   to both b and c.
E)   to none of these.F) A) and D)
G) B) and C)

Question 7

Use the above picture to answer the following question(s) . Referring to the above diagram, what structure is labeled "D"?

Accepted Answer

A)   the appendix
B)   the cecum
C)   a polyp
D)   a portion of the small intestine
E)   the colonF) C) and D)
G) All of the above

Question 8

Which of the following is NOT an example of biological digestion?

Accepted Answer

A)   chewing a piece of chocolate
B)   the breaking up of proteins by stomach acid
C)   salivary enzymes hydrolyzing starch into glucose
D)   absorption of fatty acids in the small intestines
E)   all of these are examples of biological digestionF) C) and D)
G) A) and B)

Question 9

Before nitrogenous wastes are excreted in urine, they are converted first to ___ and then to ___.

Accepted Answer

A)   urea--ammonia
B)   ammonia--urea
C)   glycogen--monosaccharides
D)   glycerin--fatty acids
E)   glyerin--ureaF) B) and E)
G) B) and C)

Question 10

Peristalsis

Accepted Answer

A)   is an involuntary smooth muscle response to swallowing.
B)   is a voluntary smooth muscle response to swallowing.
C)   is controlled by muscles surrounding the trachea.
D)   occurs when food enters the airway instead of the esophagus.
E)   is both b and c.F) A) and B)
G) None of the above

Question 11

How many teeth does the average adult human have?

Accepted Answer

A)   24
B)   32
C)   38
D)   42
E)   20F) A) and D)
G) B) and D)

Question 12

Colon polyps

Accepted Answer

A)   are mostly benign but some may become cancerous.
B)   are difficult to cure.
C)   are small growths that project from the wall of the small intestine.
D)   are responsible for 500,000 deaths in the U.S. every year.
E)   are usually benign but may become cancerous and are responsible for 500,000 deaths in the U.S. every year.F) A) and D)
G) C) and D)

Question 13

Which of the following is true about bile?

Accepted Answer

A)   it is an enzyme that digests fat
B)   it is made in the gallbladder
C)   it is stored in the liver
D)   hard pellets of bile are called gallstones
E)   none of these is true about bileF) A) and B)
G) C) and D)

Question 14

Which of the following is true of vitamins?

Accepted Answer

A)   they are inorganic substances needed in small amounts
B)   fat-soluble vitamins include C and B vitamins
C)   they are stored in body fat
D)   large amounts of vitamin K during pregnancy can cause birth defects
E)   taking large amounts of vitamin D can cause deathF) D) and E)
G) A) and B)

Question 15

What is the function of a gizzard as found in earthworms and other animals?

Accepted Answer

A)   stores food
B)   entrance for food
C)   absorbs nutrients
D)   grinds food
E)   exit for wasteF) A) and E)
G) A) and B)

Question 16

The body mass index is used to

Accepted Answer

A)   determine a healthy weight based on height.
B)   calculate a person's percentage of body fat.
C)   calculate a person's percentage of muscle.
D)   determine how many calories a person should consume per day.
E)   determine a healthy weight based on height, and to determine how many calories a person should consume per day.F) B) and D)
G) A) and D)

Question 17

Diets that are high in proteins

Accepted Answer

A)   can encourage kidney stone formation.
B)   can help protect against kidney stone formation.
C)   have no impact on kidney stone formation.
D)   can stress the kidneys.
E)   can encourage kidney stone formation and can stress the kidneys.F) A) and D)
G) B) and E)

Question 18

Vitamin B3 is a precursor of

Accepted Answer

A)   NADH.
B)   ATP.
C)   DNA.
D)   RNA.
E)   more than one of these.F) A) and E)
G) C) and E)

Question 19

Biological digestion is defined as

Accepted Answer

A)   taking food into a digestive chamber.
B)   breaking food down into smaller pieces that can be absorbed into cells.
C)   moving nutrient molecules into the internal environment.
D)   expelling indigestible materials.
E)   all of these.F) None of the above
G) A) and E)

Question 20

The feedback loop controlling ADH secretion is classified as what type of feedback loop?

Accepted Answer

A)   helpful
B)   positive
C)   negative
D)   destructive
E)   incompleteF) All of the above
G) B) and E)

Exam 23: Digestion and Excretion

Colon polyps

Correct AnswerverifiedShow Answer

Use the above figure to answer the following question(s) . Reabsorption of water and essential solutes occurs in the region labeled

Correct AnswerverifiedShow Answer

Which of the following is true concerning dietary fiber?

Correct AnswerverifiedShow Answer

What is the function of a gizzard as found in earthworms and other animals?

Correct AnswerverifiedShow Answer

Before nitrogenous wastes are excreted in urine, they are converted first to ___ and then to ___.

Correct AnswerverifiedShow Answer

Which of the following is NOT contained in gastric fluids?

Correct AnswerverifiedShow Answer

Peristalsis

Correct AnswerverifiedShow Answer

Which of the following is NOT an example of biological digestion?

Correct AnswerverifiedShow Answer

Biological digestion is defined as

Correct AnswerverifiedShow Answer

Use the above picture to answer the following question(s) . Referring to the above diagram, what structure is labeled "D"?

Correct AnswerverifiedShow Answer

If the first sphincter of the digestive tube does not operate properly, what condition could result?

Correct AnswerverifiedShow Answer

Which of the following is true of vitamins?

Correct AnswerverifiedShow Answer

How many teeth does the average adult human have?

Correct AnswerverifiedShow Answer

The body mass index is used to

Correct AnswerverifiedShow Answer

Which of the following is true about bile?

Correct AnswerverifiedShow Answer

Which of the following is true of bulimia nervosa?

Correct AnswerverifiedShow Answer

Diets that are high in proteins

Correct AnswerverifiedShow Answer

The feedback loop controlling ADH secretion is classified as what type of feedback loop?

Correct AnswerverifiedShow Answer

Vitamin B3 is a precursor of

Correct AnswerverifiedShow Answer

Dialysis refers

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Before nitrogenous wastes are excreted in urine, they are converted first to _ and then to _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified