Question 1

The enzyme that breaks down fats is:

Accepted Answer

A)  Lactase
B)  Amylase
C)  Pepsin
D)  Lipase
E)  BileF) A) and B)
G) B) and D)

Question 2

The pyloric sphincter lies between the small intestine and large intestine,thereby controlling the movement of food into the large intestine.

Accepted Answer

A) True 
 B)False

Question 3

How do female Australian redback spiders avoid mistaking the males as prey?

Accepted Answer

A)  The males are larger, so the females cannot eat them
B)  They cannot, which is why the males get eaten
C)  The males release pheromones
D)  Elaborate courtship rituals
E)  Spiders don't eat other spidersF) None of the above
G) A) and C)

Question 4

Which of the following produces bile?

Accepted Answer

A)  Gall bladder
B)  Liver
C)  Stomach
D)  Pancreas
E)  AppendixF) None of the above
G) C) and D)

Question 5

Rings of muscle in the digestive tract that can open and close,regulating the movement of food into or out of parts of the digestive system are:

Accepted Answer

A)  Rumens
B)  Sphincters
C)  Chymes
D)  Villi
E)  UvulasF) B) and E)
G) A) and E)

Question 6

The enzyme that breaks down starch is:

Accepted Answer

A)  Lipase
B)  Lactase
C)  Pepsin
D)  Amylase
E)  BileF) B) and D)
G) A) and B) D

Question 7

figure 31.21 
-In figure 31.21,what is the independent variable?

Accepted Answer

A)  Proportion of eggs fertilized by a second male
B)  If cannibalization occurred
C)  If the males were sterile
D)  Copulation duration of the second male
E)  If the female ate the maleF) A) and C)
G) None of the above

Question 8

It is estimated that more than 30 million Americans have gallstones,80% of which are cholesterol stones.Which of the following could explain the presence of cholesterol in gallstones?

Accepted Answer

A)  Cholesterol levels exceed the capacity of bile acids to digest them
B)  Cholesterol cannot be converted into bile acids
C)  Cholesterol dissolves well in water
D)  Cholesterol levels exceed the capacity of bile acids to solubilize them
E)  Cholesterol stops being produced by the liverF) B) and C)
G) A) and E)

Question 9

The trace mineral iron is necessary in humans for the transport of oxygen by hemoglobin molecules.

Accepted Answer

A) True 
 B)False

Question 10

An Australian redback spider has a complete digestive tract.What is the advantage of this over an incomplete digestive tract?

Accepted Answer

A)  Absorption of food is more efficient
B)  It doubles as a circulatory and digestive system
C)  The food is broken into smaller particles and absorption of food is more efficient
D)  The food is broken into smaller particles
E)  It doubles as a circulatory and digestive system so absorption of food is more efficientF) B) and E)
G) None of the above

Question 11

The structure that covers the opening to the trachea during swallowing,thereby preventing food from entering the air passage way is the:

Accepted Answer

A)  Epiglottis
B)  Cecum
C)  Rumen
D)  Uvula
E)  Soft palateF) A) and C)
G) A) and E)

Question 12

A primary source of vitamin C in our diets is:

Accepted Answer

A)  Red meat
B)  Beans
C)  Citrus fruit
D)  Fish
E)  NutsF) A) and E)
G) C) and D)

Question 13

If a person has their gall bladder removed they are typically put on a low fat diet.Which of the following would explain this recommendation?

Accepted Answer

A)  Bile acids cannot be produced
B)  Bile acids cannot be removed from the intestines
C)  Bile acids cannot be released following a meal
D)  Lipase cannot be released following a meal
E)  Lipase cannot be producedF) All of the above
G) A) and E) C

Question 14

An Australian redback spider that eats her mate is which of the following?

Accepted Answer

A)  Herbivore
B)  Ruminant
C)  Detritivore
D)  Carnivore
E)  Deposit feederF) A) and C)
G) A) and B)

Question 15

Which of the following diseases is caused by a deficiency of vitamin D?

Accepted Answer

A)  Rickets
B)  Scurvy
C)  Beriberi
D)  Pellagra
E)  Pernicious anemiaF) C) and D)
G) C) and E)

Question 16

An eating disorder in which a person refuses to maintain a normal body weight through starvation is anorexia nervosa.

Accepted Answer

A) True 
 B)False  True

Question 17

Bile acid sequestrants are drugs that bind to bile acids in the intestines and prevent their normal reabsorption in the large intestine.How would bile acid sequestrants lower a patient's blood cholesterol level?

Accepted Answer

A)  Bile acids bind to cholesterol in the blood
B)  Bile acids prevent cholesterol from being absorbed from the diet
C)  More cholesterol would be converted into bile acids
D)  Bile acids can be converted into cholesterol
E)  Cholesterol requires bile acids to be soluble in the bloodF) A) and B)
G) A) and C)

Question 18

The human large intestine is about _________________ in length.

Accepted Answer

A)  Three feet
B)  One foot
C)  Five feet
D)  Ten feet
E)  Twenty feetF) None of the above
G) A) and B)

Question 19

Rhythmic smooth muscle contractions occurring along the human digestive system that propel food along the system are termed:

Accepted Answer

A)  Countercurrent exchange
B)  Phagocytosis
C)  Peristalsis
D)  Rumination
E)  Sphincter contractionsF) C) and D)
G) A) and B)

Question 20

The main site of food absorption in the human digestive system is the:

Accepted Answer

A)  Stomach
B)  Esophagus
C)  Small intestine
D)  Large intestine
E)  RectumF) A) and B)
G) B) and D)

Exam 31: Digestion and Animal Nutrition

The enzyme that breaks down fats is:

Correct AnswerverifiedShow Answer

The pyloric sphincter lies between the small intestine and large intestine,thereby controlling the movement of food into the large intestine.

Correct AnswerverifiedShow Answer

How do female Australian redback spiders avoid mistaking the males as prey?

Correct AnswerverifiedShow Answer

Which of the following produces bile?

Correct AnswerverifiedShow Answer

Rings of muscle in the digestive tract that can open and close,regulating the movement of food into or out of parts of the digestive system are:

Correct AnswerverifiedShow Answer

The enzyme that breaks down starch is:

Correct AnswerverifiedD

figure 31.21 -In figure 31.21,what is the independent variable?

Correct AnswerverifiedShow Answer

It is estimated that more than 30 million Americans have gallstones,80% of which are cholesterol stones.Which of the following could explain the presence of cholesterol in gallstones?

Correct AnswerverifiedShow Answer

The trace mineral iron is necessary in humans for the transport of oxygen by hemoglobin molecules.

Correct AnswerverifiedShow Answer

An Australian redback spider has a complete digestive tract.What is the advantage of this over an incomplete digestive tract?

Correct AnswerverifiedShow Answer

The structure that covers the opening to the trachea during swallowing,thereby preventing food from entering the air passage way is the:

Correct AnswerverifiedShow Answer

A primary source of vitamin C in our diets is:

Correct AnswerverifiedShow Answer

If a person has their gall bladder removed they are typically put on a low fat diet.Which of the following would explain this recommendation?

Correct AnswerverifiedC

An Australian redback spider that eats her mate is which of the following?

Correct AnswerverifiedShow Answer

Which of the following diseases is caused by a deficiency of vitamin D?

Correct AnswerverifiedShow Answer

An eating disorder in which a person refuses to maintain a normal body weight through starvation is anorexia nervosa.

Correct AnswerverifiedTrue

Bile acid sequestrants are drugs that bind to bile acids in the intestines and prevent their normal reabsorption in the large intestine.How would bile acid sequestrants lower a patient's blood cholesterol level?

Correct AnswerverifiedShow Answer

The human large intestine is about _________________ in length.

Correct AnswerverifiedShow Answer

Rhythmic smooth muscle contractions occurring along the human digestive system that propel food along the system are termed:

Correct AnswerverifiedShow Answer

The main site of food absorption in the human digestive system is the:

Correct AnswerverifiedShow Answer

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D

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C

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True

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