Question 1

What is lymph?

Accepted Answer

A)   a light red fluid that stores fat-soluble vitamins
B)   a clear fluid that contains infection-fighting white blood cells
C)   a white fluid that contains probiotics
D)   a greenish fluid that contains abundant platelets and water-soluble vitamins
E)   a viscous, red fluid that contains red blood cells and plateletsF) A) and D)
G) C) and E)

Question 2

What do intestinal microvilli do?

Accepted Answer

A)   secret bile salts
B)   secret mucus
C)   transport nutrient particles into cells
D)   transport pancreatic enzymes
E)   stimulate peristalsisF) All of the above
G) None of the above

Question 3

Vomiting expels the contents of the stomach up through the ________ to the mouth.

Accepted Answer

A)   esophagus
B)   larynx
C)   trachea
D)   salivary glands
E)   duodenumF) B) and E)
G) C) and D)

Question 4

Which structure is required to prevent entrance of food into the trachea?

Accepted Answer

A)   tongue
B)   epiglottis
C)   cardiac sphincter
D)   trachea sphincterE) A) and B)
F) C) and D)

Question 5

What is the most metabolically active organ in the human body?

Accepted Answer

A)   liver
B)   adrenal gland
C)   stomach
D)   small intestine
E)   brainF) A) and B)
G) A) and E)

Question 6

In which organ does most absorption take place?

Accepted Answer

A)   small intestine
B)   large intestine
C)   liver
D)   gallbladder
E)   stomachF) A) and D)
G) B) and D)

Question 7

Consider the first digestive challenge presented in the text: Human beings breathe, eat, and drink through their mouths. Air taken in through the mouth must go to the lungs; food and beverages must go to the stomach. The throat must be arranged so that swallowing, and breathing do not interfere with each other. How does the human body resolve this?

Accepted Answer

When a mouthful of food is swallowed, it...

Question 8

What terms refers to the sacs that develop in the weakened areas of the intestinal wall?

Accepted Answer

A)   constipation
B)   diarrhea
C)   diverticula
D)   colitis
E)   ulcersF) A) and D)
G) A) and C)

Question 9

What happens to the enzymes present in foods we consume?

Accepted Answer

A)   hydrolyzes in the GI tract
B)   absorbed undigested by the stomach
C)   absorbed intact by the small intestine
D)   passed through the GI tract and excreted in the stool
E)   absorbed undigested in the bloodstream.F) D) and E)
G) B) and D)

Question 10

Which statement accurately describes the pancreas?

Accepted Answer

A)   The major hormone controlling the release of pancreatic enzymes is insulin.
B)   Quick dietary changes improve digestion because of pancreas inefficiency.
C)   The pancreas can increase the activity of fat-degrading enzymes in response to more fat in the diet.
D)   In general, the amounts of digestive enzymes secreted by the pancreas remain constant over a wide range of nutrient intakes.
E)   Pancreatic enzymes can digest protein and fat but not carbohydrate.F) A) and B)
G) A) and C)

Question 11

What is intestinal ischemia?

Accepted Answer

A)   reduced blood flow to the intestines
B)   microscopically small fungi
C)   mucus-secreting intestinal projections
D)   inflammation of two or more sphincter muscles
E)   collection of microbes in the intestinesF) A) and B)
G) A) and C)

Question 12

Compare and contrast the common digestive problems of vomiting and diarrhea.

Accepted Answer

Vomiting can be a symptom of many differ...

Question 13

You ate a salad for lunch; thereafter, your body breaks down these foods into nutrients in preparation for absorption. This process is called "________."

Accepted Answer

A)   digestion
B)   ingestion
C)   excretion
D)   mastication
E)   segmentationF) A) and E)
G) B) and D)

Question 14

Briefly explain the digestive actions that take place in the mouth, in the stomach, and in the small intestine.

Accepted Answer

Mouth: The process of digestion begins i...

Question 15

Which two systems coordinate all the digestive and absorptive processes?

Accepted Answer

A)   endocrine and thoracic
B)   portal and lymphatic
C)   nervous and hormonal
D)   hormonal and circulatory
E)   circulatory and nervousF) None of the above
G) A) and D)

Question 16

What protects stomach cells from acid and disease-causing bacteria?

Accepted Answer

A)   hydrochloric acid
B)   water
C)   gastric glands
D)   mucus
E)   bileF) B) and D)
G) B) and C)

Question 17

Glucose moves against a concentration gradient, which requires energy; therefore, it is absorbed by ________.

Accepted Answer

A)   simple diffusion
B)   complex diffusion
C)   facilitated transport
D)   active transport
E)   endocytosisF) A) and E)
G) A) and B)

Question 18

What are crypts?

Accepted Answer

A)   projections on the inner surface of the small intestine
B)   tubular glands that secret juices into the small intestine
C)   cells of the GI tract that secret mucus
D)   hairlike projections that trap nutrient particles and transport them to cells
E)   glands that store bileF) C) and E)
G) D) and E)

Question 19

Which statement about the stomach is FALSE?

Accepted Answer

A)   It churns, mixes, and grinds food.
B)   It holds a bolus in its upper portion before transferring it to the lower portion.
C)   It adds digestive juices turning a bolus into chyme.
D)   It manufactures bile salts to help digest fats.
E)   It releases chyme little by little through the pyloric sphincter.F) C) and E)
G) B) and C)

Question 20

Which statement about the absorptive system is FALSE?

Accepted Answer

A)   Cells of the intestinal tract are specialized to absorb different nutrients.
B)   Fat-soluble nutrients pass through villi and enter the lymph.
C)   The small intestine is about 25 feet long.
D)   The many folds and villi of the small intestine increase its surface area, which helps nutrient absorption.
E)   If one part of the GI tract becomes dysfunctional, one's diet should be adjusted accordingly.F) D) and E)
G) C) and E)

Exam 3: Digestion, Absorption, and Transport

What is lymph?

Correct Answer
verified

Compare and contrast the common digestive problems of vomiting and diarrhea.

Correct Answer
verified
Vomiting can be a symptom of many differ...
View Answer

What do intestinal microvilli do?

Correct Answer
verified

Which statement about the absorptive system is FALSE?

Correct Answer
verified

Which statement accurately describes the pancreas?

Correct Answer
verified

What protects stomach cells from acid and disease-causing bacteria?

Correct Answer
verified

Correct Answer
verified
When a mouthful of food is swallowed, it...
View Answer

What happens to the enzymes present in foods we consume?

Correct Answer
verified

Which structure is required to prevent entrance of food into the trachea?

Correct Answer
verified

What terms refers to the sacs that develop in the weakened areas of the intestinal wall?

Correct Answer
verified

Briefly explain the digestive actions that take place in the mouth, in the stomach, and in the small intestine.

Correct Answer
verified
Mouth: The process of digestion begins i...
View Answer

What is intestinal ischemia?

Correct Answer
verified

Which statement about the stomach is FALSE?

Correct Answer
verified

Vomiting expels the contents of the stomach up through the ________ to the mouth.

Correct Answer
verified

Which two systems coordinate all the digestive and absorptive processes?

Correct Answer
verified

You ate a salad for lunch; thereafter, your body breaks down these foods into nutrients in preparation for absorption. This process is called "________."

Correct Answer
verified

Glucose moves against a concentration gradient, which requires energy; therefore, it is absorbed by ________.

Correct Answer
verified

What are crypts?

Correct Answer
verified

In which organ does most absorption take place?

Correct Answer
verified

What is the most metabolically active organ in the human body?

Correct Answer
verified

Exam 3: Digestion, Absorption, and Transport

What is lymph?

Correct AnswerverifiedShow Answer

Compare and contrast the common digestive problems of vomiting and diarrhea.

Correct AnswerverifiedVomiting can be a symptom of many differ...View AnswerShow Answer

What do intestinal microvilli do?

Correct AnswerverifiedShow Answer

Which statement about the absorptive system is FALSE?

Correct AnswerverifiedShow Answer

Which statement accurately describes the pancreas?

Correct AnswerverifiedShow Answer

What protects stomach cells from acid and disease-causing bacteria?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedWhen a mouthful of food is swallowed, it...View AnswerShow Answer

What happens to the enzymes present in foods we consume?

Correct AnswerverifiedShow Answer

Which structure is required to prevent entrance of food into the trachea?

Correct AnswerverifiedShow Answer

What terms refers to the sacs that develop in the weakened areas of the intestinal wall?

Correct AnswerverifiedShow Answer

Briefly explain the digestive actions that take place in the mouth, in the stomach, and in the small intestine.

Correct AnswerverifiedMouth: The process of digestion begins i...View AnswerShow Answer

What is intestinal ischemia?

Correct AnswerverifiedShow Answer

Which statement about the stomach is FALSE?

Correct AnswerverifiedShow Answer

Vomiting expels the contents of the stomach up through the ________ to the mouth.

Correct AnswerverifiedShow Answer

Which two systems coordinate all the digestive and absorptive processes?

Correct AnswerverifiedShow Answer

You ate a salad for lunch; thereafter, your body breaks down these foods into nutrients in preparation for absorption. This process is called "________."

Correct AnswerverifiedShow Answer

Glucose moves against a concentration gradient, which requires energy; therefore, it is absorbed by ________.

Correct AnswerverifiedShow Answer

What are crypts?

Correct AnswerverifiedShow Answer

In which organ does most absorption take place?

Correct AnswerverifiedShow Answer

What is the most metabolically active organ in the human body?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
Vomiting can be a symptom of many differ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
When a mouthful of food is swallowed, it...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Mouth: The process of digestion begins i...
View Answer

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