Question 1

The steroid hormone produced by the adrenal cortex that raises blood pressure is

Accepted Answer

A)   epinephrine.
B)   aldosterone.
C)   FSH.
D)   insulin.
E)   testosteroneF) C) and E)
G) None of the above

Question 2

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

Accepted Answer

A)   Bile binds to cholesterol in the blood.
B)   Bile prevents cholesterol from being absorbed from the diet.
C)   More cholesterol would be converted into bile.
D)   Bile can be converted into cholesterol.
E)   Cholesterol requires bile to be soluble in the blood.F) B) and E)
G) C) and D)

Question 3

Energy is one of the resources obtained by heterotrophs when they eat.

Accepted Answer

A) True 
 B)False

Question 4

In sequence of their occurrence,the four major steps that vertebrate organisms use to obtain and use food are

Accepted Answer

A)   ingestion, digestion, absorption, and elimination.
B)   ingestion, absorption, digestion, and elimination.
C)   absorption, ingestion, digestion, and elimination.
D)   absorption, digestion, ingestion, and elimination.
E)   digestion, absorption, ingestion, and elimination.F) C) and E)
G) A) and D)

Question 5

In a study on the bacteria found in human mouths,from the Mesolithic to present day,researchers found that Streptococcus mutans,a bacterium associated with tooth decay,is

Accepted Answer

A)   more common in modern times than in either the medieval times or the bronze age.
B)   more common in medieval times than in either the bronze age or modern times.
C)   more common in the bronze age than in either medieval or modern times.
D)   the same frequency in the bronze age, medieval times, and modern times.
E)   absent in modern times, but existed in the bronze age and medieval times.F) C) and D)
G) B) and C)

Question 6

The homeostasis of water in organisms is affected by

Accepted Answer

A)   blood composition.
B)   nutrition.
C)   sweating when internal temperatures are too hot.
D)   salt concentrations.
E)   All answers are correct.F) A) and B)
G) A) and C)

Question 7

Animals that consume decaying organic matter as their main source of food are

Accepted Answer

A)   omnivores.
B)   carnivores.
C)   detritivores.
D)   herbivores.
E)   insectivores.F) B) and D)
G) All of the above

Question 8

The passage of food needs to occur in a controlled way,so the body contains rings of muscle in the digestive tract that regulate the movement of food.These are

Accepted Answer

A)   rumens.
B)   sphincters.
C)   chymes.
D)   villi.
E)   uvulas.F) D) and E)
G) C) and E)

Question 9

Since small amounts of ammonia are very toxic,mammals convert ammonia to urea for concentration before excretion occurs.

Accepted Answer

A) True 
 B)False

Question 10

If you detected large amounts of ammonia in mammalian urine,you would know that the mammal in question had serious problems with liver and urinary functions.

Accepted Answer

A) True 
 B)False

Question 11

A gram of carbohydrate yields the same amount of calories as in a gram of

Accepted Answer

A)   protein but less than the amount of calories in a gram of fat.
B)   fat but less than the amount of calories in a gram of protein.
C)   protein but more than the amount of calories in a gram of fat.
D)   fat but more than the amount of calories in a gram of fat.
E)   protein and in a gram of fat.F) B) and E)
G) C) and D)

Question 12

The major excretory organ of the human urinary system is the

Accepted Answer

A)   gallbladder.
B)   pancreas.
C)   liver.
D)   adrenal gland.
E)   kidney.F) B) and E)
G) None of the above

Question 13

If you placed cells from a marine alga in freshwater,you would expect to see that

Accepted Answer

A)   water moves out of the cell by osmosis.
B)   the cell will dehydrate.
C)   water moves into the cell by facilitated diffusion.
D)   water moves into the cell by osmosis.
E)   water moves out of the cell by facilitated diffusion.F) A) and D)
G) A) and B)

Exam 28: The Digestive and Urinary Systems

If you detected large amounts of ammonia in mammalian urine,you would know that the mammal in question had serious problems with liver and urinary functions.

Correct Answer
verified

In a study on the bacteria found in human mouths,from the Mesolithic to present day,researchers found that Streptococcus mutans,a bacterium associated with tooth decay,is

Correct Answer
verified

In sequence of their occurrence,the four major steps that vertebrate organisms use to obtain and use food are

Correct Answer
verified

The homeostasis of water in organisms is affected by

Correct Answer
verified

A gram of carbohydrate yields the same amount of calories as in a gram of

Correct Answer
verified

If you placed cells from a marine alga in freshwater,you would expect to see that

Correct Answer
verified

Energy is one of the resources obtained by heterotrophs when they eat.

Correct Answer
verified

The passage of food needs to occur in a controlled way,so the body contains rings of muscle in the digestive tract that regulate the movement of food.These are

Correct Answer
verified

The steroid hormone produced by the adrenal cortex that raises blood pressure is

Correct Answer
verified

The major excretory organ of the human urinary system is the

Correct Answer
verified

Animals that consume decaying organic matter as their main source of food are

Correct Answer
verified

Since small amounts of ammonia are very toxic,mammals convert ammonia to urea for concentration before excretion occurs.

Correct Answer
verified

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

Correct Answer
verified

Exam 28: The Digestive and Urinary Systems

If you detected large amounts of ammonia in mammalian urine,you would know that the mammal in question had serious problems with liver and urinary functions.

Correct AnswerverifiedShow Answer

In a study on the bacteria found in human mouths,from the Mesolithic to present day,researchers found that Streptococcus mutans,a bacterium associated with tooth decay,is

Correct AnswerverifiedShow Answer

In sequence of their occurrence,the four major steps that vertebrate organisms use to obtain and use food are

Correct AnswerverifiedShow Answer

The homeostasis of water in organisms is affected by

Correct AnswerverifiedShow Answer

A gram of carbohydrate yields the same amount of calories as in a gram of

Correct AnswerverifiedShow Answer

If you placed cells from a marine alga in freshwater,you would expect to see that

Correct AnswerverifiedShow Answer

Energy is one of the resources obtained by heterotrophs when they eat.

Correct AnswerverifiedShow Answer

The passage of food needs to occur in a controlled way,so the body contains rings of muscle in the digestive tract that regulate the movement of food.These are

Correct AnswerverifiedShow Answer

The steroid hormone produced by the adrenal cortex that raises blood pressure is

Correct AnswerverifiedShow Answer

The major excretory organ of the human urinary system is the

Correct AnswerverifiedShow Answer

Animals that consume decaying organic matter as their main source of food are

Correct AnswerverifiedShow Answer

Since small amounts of ammonia are very toxic,mammals convert ammonia to urea for concentration before excretion occurs.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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