Question 1

In humans, fats are absorbed

Accepted Answer

A)   in the large intestine.
B)   in the rugae of the stomach.
C)   primarily into the blood capillaries.
D)   primarily into the ducts of the lacteal of the small intestine.
E)   by the liver.F) C) and E)
G) A) and C)

Question 2

A function of the human stomach is

Accepted Answer

A)   to produce highly basic fluids to kill most bacteria.
B)   to begin the absorption of most small food molecules, especially sugars.
C)   storing food and mixing food with enzymes to begin the chemical digestion of proteins.
D)   to pass food from the esophagus to the large intestine.
E)   absorption of iron to build hemoglobin for red blood cells.F) A) and B)
G) C) and D)

Question 3

In the body, glucose is stored in the liver as

Accepted Answer

A)   starch.
B)   protein.
C)   glycogen.
D)   fat.
E)   amino acids.F) B) and C)
G) C) and D)

Question 4

Stunted growth in children and low bone density in adults is caused a deficiency of

Accepted Answer

A)   iron.
B)   folic acid (folacin) .
C)   copper.
D)   vitamin B12.
E)   calcium.F) None of the above
G) B) and D)

Question 5

Starting from the inside of the esophagus and going to the outside, the layers of the digestive tract in sequence are

Accepted Answer

A)   serosa → smooth muscle → submucosa → mucosa.
B)   serosa → submucosa → smooth muscle → mucosa.
C)   mucosa → smooth muscle → submucosa → serosa.
D)   mucosa → submucosa → serosa → smooth muscle.
E)   mucosa → submucosa → smooth muscle → serosa.F) A) and E)
G) A) and B)

Question 6

Which organ in the human body produces maltase and peptidases?

Accepted Answer

A)   mouth
B)   esophagus
C)   stomach
D)   small intestine
E)   large intestineF) C) and D)
G) A) and B)

Question 7

As food is processed and moves through the digestive tract it changes form several times. What is the correct order of the stages of food processing?

Accepted Answer

A)   bolus → feces → chyme
B)   bolus → chyme → feces
C)   chyme → feces → bolus
D)   chyme → bolus → feces
E)   feces → bolus → chymeF) A) and B)
G) C) and E)

Question 8

What is the function of sodium bicarbonate in the digestive tract?

Accepted Answer

A)   destruction of bacteria
B)   digestion of fat in the small intestine
C)   neutralization of chyme arriving at the small intestine
D)   breakdown of connective tissue in the stomach
E)   activation of pepsin in the stomachF) B) and E)
G) D) and E)

Question 9

At body temperature, which of these combinations is most likely to result in the digestion of proteins?

Accepted Answer

A)   water, pepsin
B)   HCl, pepsin
C)   bile, pepsin
D)   sodium bicarbonate, pepsin
E)   pepsin, HCl, sodium bicarbonateF) B) and D)
G) A) and C)

Question 10

Heartburn occurs when

Accepted Answer

A)   the heart responds painfully to chemical changes due to diet.
B)   bacteria cause the stomach lining to ulcerate.
C)   the glottis fails to prevent food from entering the trachea.
D)   some of the stomach contents escape back into the lower esophagus.
E)   the bile duct is blocked.F) A) and E)
G) B) and E)

Question 11

Which eating disorder is associated with a binge of high-calorie foods and feelings of guilt followed by a purge cycle.

Accepted Answer

A)   bulimia nervosa
B)   binge-eating disorder
C)   pica
D)   anorexia nervosa
E)   All of the answer choices are associated with a binge of high-calorie foods, and a feeling of guilt followed by a purge cycle.F) A) and B)
G) D) and E)

Question 12

Which of the following is an infectious cause of jaundice?

Accepted Answer

A)   trauma
B)   gallstones
C)   cancer
D)   alcoholism
E)   hepatitis BF) B) and D)
G) A) and E)

Question 13

Which of the following can result if the large intestine becomes irritated and peristalsis increases?

Accepted Answer

A)   constipation
B)   diarrhea
C)   appendicitis
D)   ulcers
E)   herniasF) None of the above
G) A) and B)

Question 14

A woman is not getting enough calcium in her diet. One of the first symptoms she may experience would be

Accepted Answer

A)   a broken bone.
B)   anemia.
C)   irregular heart beat.
D)   muscle spasms.
E)   night blindness.F) B) and E)
G) A) and D)

Question 15

Both the mucosa and submucosa are made of epithelial tissue.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following types of lipids is least likely to cause cardiovascular disease?

Accepted Answer

A)   cholesterol
B)   trans saturated fatty acids
C)   saturated fatty acids
D)   unsaturated fatty acids
E)   animal fatsF) B) and C)
G) C) and D)

Question 17

Muscles that encircle tubes and act as valves are called

Accepted Answer

A)   constrictors.
B)   dilators.
C)   sphincters.
D)   lacteals.
E)   mucosa.F) D) and E)
G) B) and D)

Question 18

Bacteria living in the large intestine

Accepted Answer

A)   are a source of fiber.
B)   can produce vitamins.
C)   are found only in the appendix.
D)   can produce excess acid.
E)   are found only in the rectum.F) B) and E)
G) A) and B)

Question 19

Which of the following is true of the duodenum?

Accepted Answer

A)   It is a duct from the liver that introduces bile.
B)   It is a pancreatic duct that introduces basic fluids to neutralize the stomach acid.
C)   Highly acidic stomach contents enter the small intestine here.
D)   It contains villi for absorption.
E)   All of the answer choices are true statements about the duodenum.F) A) and E)
G) All of the above

Question 20

-In figure 14.1, which structure is the liver?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) C) and D)
G) B) and E)

Exam 14: Digestive System and Nutrition

In humans, fats are absorbed

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Muscles that encircle tubes and act as valves are called

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As food is processed and moves through the digestive tract it changes form several times. What is the correct order of the stages of food processing?

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In the body, glucose is stored in the liver as

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Bacteria living in the large intestine

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Which organ in the human body produces maltase and peptidases?

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-In figure 14.1, which structure is the liver?

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Stunted growth in children and low bone density in adults is caused a deficiency of

Correct AnswerverifiedShow Answer

Both the mucosa and submucosa are made of epithelial tissue.

Correct AnswerverifiedShow Answer

A function of the human stomach is

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At body temperature, which of these combinations is most likely to result in the digestion of proteins?

Correct AnswerverifiedShow Answer

Which eating disorder is associated with a binge of high-calorie foods and feelings of guilt followed by a purge cycle.

Correct AnswerverifiedShow Answer

Starting from the inside of the esophagus and going to the outside, the layers of the digestive tract in sequence are

Correct AnswerverifiedShow Answer

Which of the following types of lipids is least likely to cause cardiovascular disease?

Correct AnswerverifiedShow Answer

What is the function of sodium bicarbonate in the digestive tract?

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Which of the following is true of the duodenum?

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Which of the following can result if the large intestine becomes irritated and peristalsis increases?

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Which of the following is an infectious cause of jaundice?

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Heartburn occurs when

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A woman is not getting enough calcium in her diet. One of the first symptoms she may experience would be

Correct AnswerverifiedShow Answer

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