Question 1

Which of the following statements regarding animal digestive systems is false?

Accepted Answer

A)  Meat is more difficult to digest than vegetable matter because of its protein content.
B)  We expect that an herbivore will have a longer alimentary canal than a carnivore of similar body size.
C)  When cows chew their cud,it helps to soften and break down plant fibers,making these more accessible to digestion by microbes.
D)  Many herbivorous animals have cellulose- digesting microbes in their colon and cecum.E) A) and B)
F) A) and C) A

Question 2

Most animals are

Accepted Answer

A)  substrate feeders.
B)  suspension feeders.
C)  fluid feeders.
D)  bulk feeders.E) B) and D)
F) B) and C)

Question 3

Which arrow shows the release of digestive enzymes by the pancreas?

Accepted Answer

A)  arrow A
B)  arrow B
C)  arrow C
D)  arrow DE) B) and C)
F) None of the above D

Question 4

When the wall of the stomach cannot protect the organ from the effects of digestion,the result is

Accepted Answer

A)  nausea.
B)  heartburn.
C)  reverse peristalsis.
D)  a gastric ulcer.E) B) and C)
F) A) and C)

Question 5

Human saliva performs all of the following functions except

Accepted Answer

A)  hydrolyzing proteins.
B)  hydrolyzing starch.
C)  controlling bacterial populations.
D)  neutralizing food acids.E) C) and D)
F) B) and D)

Question 6

In the digestive system,most nutrient absorption occurs in the

Accepted Answer

A)  large intestine.
B)  stomach.
C)  pancreas.
D)  small intestine.E) A) and B)
F) A) and C)

Question 7

The secretory parietal cells of the stomach are responsible for producing

Accepted Answer

A)  pepsin.
B)  lactic acid.
C)  mucus.
D)  hydrochloric acid.E) A) and B)
F) C) and D) D

Question 8

The rate of energy consumption by the body is called

Accepted Answer

A)  glycolysis.
B)  metabolism.
C)  digestion.
D)  metabolic rate.E) None of the above
F) A) and C)

Question 9

Which of the following diseases is associated with obesity?

Accepted Answer

A)  rheumatoid arthritis
B)  cardiovascular disease
C)  chicken pox
D)  multiple sclerosisE) A) and C)
F) A) and B)

Question 10

Organisms suffering from malnutrition may have a diet deficient in

Accepted Answer

A)  one or more essential nutrients.
B)  digestive enzymes.
C)  bile and acids needed for digestion.
D)  water.E) B) and C)
F) A) and D)

Question 11

What is the main digestive function of the pancreas?

Accepted Answer

A)  to produce digestive enzymes and bile salts
B)  to produce digestive enzymes and an alkaline solution
C)  to aid in the control of cholesterol
D)  to produce bicarbonate- containing mucusE) A) and D)
F) B) and D)

Question 12

Essential fatty acids,which are required in the human diet,are

Accepted Answer

A)  the fatty acids used in the construction of the phospholipids of cell membranes.
B)  the fatty acids that humans can synthesize from simpler molecules.
C)  those fatty acids that humans are unable to synthesize.
D)  stored in the gallbladder.E) A) and D)
F) None of the above

Question 13

Which of the following statements regarding animals is false?

Accepted Answer

A)  Animals that eat meat are called carnivores.
B)  Animals that eat plants are called herbivores.
C)  Animals that live in or on their food source and eat their way through it are called substrate feeders.
D)  Animals that extract food particles suspended in the surrounding water are called fluid feeders.E) C) and D)
F) None of the above

Question 14

Absorption of water is a major function of the

Accepted Answer

A)  esophagus.
B)  rectum.
C)  colon.
D)  appendix.E) None of the above
F) C) and D)

Question 15

Which of the following statements regarding metabolism is false?

Accepted Answer

A)  Cells usually use carbohydrates and fats as fuel sources.
B)  Humans store some extra energy in the form of glycogen reserves in the pancreas and spleen.
C)  The basal metabolic rate is the amount of energy an animal needs just to stay alive,and does not include the energy needed for activities.
D)  The average basal metabolic rate for humans is 1300- 1800 kcal per day.E) A) and B)
F) A) and C)

Question 16

Which of the following organisms has a gastrovascular cavity?

Accepted Answer

A)  hydra
B)  earthworm
C)  bird
D)  clamE) A) and D)
F) All of the above

Question 17

The main function of an earthworm's gizzard is to

Accepted Answer

A)  grind food.
B)  store food.
C)  moisten food.
D)  absorb nutrients.E) A) and C)
F) A) and D)

Question 18

An animal digestive tract that consists of two openings (a mouth and anus) is called

Accepted Answer

A)  an intestine.
B)  a mammalian crop.
C)  the alimentary canal.
D)  an excretory system.E) B) and D)
F) A) and C)

Question 19

Which of the following correctly lists the order of the parts of the human digestive system,from first to last contact with food matter?

Accepted Answer

A)  pharynx,oral cavity,esophagus,stomach,large intestine
B)  oral cavity,pharynx,esophagus,stomach,small intestine,large intestine
C)  oral cavity,esophagus,stomach,large intestine,small intestine
D)  esophagus,pharynx,stomach,small intestine,large intestineE) B) and C)
F) C) and D)

Question 20

During which of the following stages of food processing is undigested material removed from the digestive tract?

Accepted Answer

A)  absorption
B)  ingestion
C)  elimination
D)  digestionE) All of the above
F) B) and D)

Exam 21: Nutrition and Digestion

Which of the following statements regarding animal digestive systems is false?

Correct AnswerverifiedA

Most animals are

Correct AnswerverifiedShow Answer

Which arrow shows the release of digestive enzymes by the pancreas?

Correct AnswerverifiedD

When the wall of the stomach cannot protect the organ from the effects of digestion,the result is

Correct AnswerverifiedShow Answer

Human saliva performs all of the following functions except

Correct AnswerverifiedShow Answer

In the digestive system,most nutrient absorption occurs in the

Correct AnswerverifiedShow Answer

The secretory parietal cells of the stomach are responsible for producing

Correct AnswerverifiedD

The rate of energy consumption by the body is called

Correct AnswerverifiedShow Answer

Which of the following diseases is associated with obesity?

Correct AnswerverifiedShow Answer

Organisms suffering from malnutrition may have a diet deficient in

Correct AnswerverifiedShow Answer

What is the main digestive function of the pancreas?

Correct AnswerverifiedShow Answer

Essential fatty acids,which are required in the human diet,are

Correct AnswerverifiedShow Answer

Which of the following statements regarding animals is false?

Correct AnswerverifiedShow Answer

Absorption of water is a major function of the

Correct AnswerverifiedShow Answer

Which of the following statements regarding metabolism is false?

Correct AnswerverifiedShow Answer

Which of the following organisms has a gastrovascular cavity?

Correct AnswerverifiedShow Answer

The main function of an earthworm's gizzard is to

Correct AnswerverifiedShow Answer

An animal digestive tract that consists of two openings (a mouth and anus) is called

Correct AnswerverifiedShow Answer

Which of the following correctly lists the order of the parts of the human digestive system,from first to last contact with food matter?

Correct AnswerverifiedShow Answer

During which of the following stages of food processing is undigested material removed from the digestive tract?

Correct AnswerverifiedShow Answer

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