Question 1

Which is a role of bile acids?

Accepted Answer

A)  oxidation of fats
B)  enzymatic digestion of proteins
C)  emulsifying fats
D)  neutralizing bases in the intestines
E)  producing acid for the stomachF) B) and D)
G) A) and E)

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

The hormone secreted by the posterior pituitary that causes the reabsorption of more water by the kidney is

Accepted Answer

A)  ADH.
B)  FSH.
C)  GH.
D)  LH.
E)  ACTH.F) A) and B)
G) A) and C)

Question 4

Like the kidney,a dialysis machine filters all but what out of the blood?

Accepted Answer

A)  water
B)  waste
C)  blood cells
D)  salt
E)  glucoseF) C) and D)
G) A) and C)

Question 5

Epithelial cells of the small intestine contains 500 microvilli.What is the purpose of these microvilli?

Accepted Answer

A)  to increase surface area for food absorption
B)  to beat and move food through the intestines
C)  to contract and move food through the intestines
D)  to release mucus that protects the intestines from infection
E)  to release digestive enzymesF) B) and D)
G) B) and C)

Question 6

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) A) and D)
G) A) and C)

Question 7

If presented with a person who was malnourished because of a refusal to eat,you would diagnose anorexia nervosa.

Accepted Answer

A) True 
 B)False

Question 8

The process used to control the level of water and ions in body fluids is termed

Accepted Answer

A)  thermoregulation.
B)  mechanoregulation.
C)  chemoregulation.
D)  hemoregulation.
E)  osmoregulation.F) None of the above
G) C) and E)

Question 9

The functional unit of a kidney is a

Accepted Answer

A)  neuron.
B)  ureter.
C)  nephron.
D)  collecting duct.
E)  sphincter.F) None of the above
G) A) and E)

Question 10

Which is a disadvantage of an incomplete digestive tract that does not affect an organism with a complete digestive tract?

Accepted Answer

A)  Organism can only complete asexual reproduction.
B)  Organism must cease eating temporarily to defecate.
C)  Organism can only conduct intracellular digestion.
D)  Organism can only conduct extracellular digestion.
E)  Organism can only consume food smaller than a cell.F) A) and D)
G) B) and D)

Question 11

Ocean water is much saltier than a fish's cells,so the animal loses water by osmosis,mostly at the gills.How would a saltwater fish osmoregulate?

Accepted Answer

A)  Drink seawater and use active transport at the gills to take up salt from the water.
B)  Produce dilute urine and use active transport at the gills to take up salt from the water.
C)  Drink seawater and use active transport at the gills to get rid of excess salts.
D)  Produce dilute urine and use active transport at the gills to get rid of excess salt from the water.E) A) and C)
F) None of the above

Question 12

Which produces bile?

Accepted Answer

A)  gall bladder
B)  liver
C)  stomach
D)  pancreas
E)  appendixF) C) and D)
G) B) and C)

Question 13

When the concentration of solutes in fluid is higher outside the cell than inside,

Accepted Answer

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

Question 14

The primary functional unit of a kidney is the nephron.

Accepted Answer

A) True 
 B)False

Question 15

Which is a disadvantage of intracellular digestion that does not affect extracellular digestion?

Accepted Answer

A)  Food must be smaller than a cell.
B)  Food must be in a liquid form.
C)  Digestive enzymes must be activated immediately.
D)  Digestive enzymes are not efficient.
E)  All answers are correct.F) A) and B)
G) A) and D)

Question 16

If a person eats large quantities of food and then intentionally vomits,constantly going through what are called binge and purge patterns,they most likely suffer from the eating disorder known as

Accepted Answer

A)  anorexia nervosA.
B)  morbid obesity.
C)  copious intake.
D)  hypoglycemia.
E)  bulimia.F) A) and B)
G) A) and C)

Question 17

Why must organisms eat?

Accepted Answer

A)  They eat to obtain potential energy stored in the chemical bonds.
B)  They eat to provide reactants for respiration to make ATP.
C)  They eat to obtain the monomers of proteins,lipids,and carbohydrates constructed in organisms.
D)  They eat to obtain carbohydrates,proteins,and lipids.
E)  All answers are correct.F) B) and C)
G) A) and E)

Question 18

Alcohol reduces ADH secretion that in turn does what?

Accepted Answer

A)  It decreases tubule permeability to water and thus increases urine volume.
B)  It decreases tubule permeability to water and thus decreases urine volume.
C)  It increases tubule permeability to water and thus increases urine volume.
D)  It increases tubule permeability to water and thus decreases urine volume.
E)  None of the answer choices is correct.F) None of the above
G) A) and C)

Question 19

Animals that eat only plants are

Accepted Answer

A)  omnivores.
B)  herbivores.
C)  carnivores.
D)  detritivores.
E)  insectivores.F) A) and D)
G) A) and C)

Question 20

Homeostasis is defined as

Accepted Answer

A)  the ability of an organism to anchor itself to the rocks or soil of a body of water.
B)  the ability of an organism to carry out chemical reactions.
C)  the ability of an organism to sexually mature.
D)  the ability of an organism to withstand extreme temperatures.
E)  the ability of an organism to maintain a stable internal environment.F) A) and E)
G) B) and E)

Exam 28: The Digestive and Urinary Systems

Animals that eat only plants are

Correct AnswerverifiedShow Answer

Which is a role of bile acids?

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Ocean water is much saltier than a fish's cells,so the animal loses water by osmosis,mostly at the gills.How would a saltwater fish osmoregulate?

Correct AnswerverifiedShow Answer

The functional unit of a kidney is a

Correct AnswerverifiedShow Answer

Epithelial cells of the small intestine contains 500 microvilli.What is the purpose of these microvilli?

Correct AnswerverifiedShow Answer

Which is a disadvantage of an incomplete digestive tract that does not affect an organism with a complete digestive tract?

Correct AnswerverifiedShow Answer

Which is a disadvantage of intracellular digestion that does not affect extracellular digestion?

Correct AnswerverifiedShow Answer

The primary functional unit of a kidney is the nephron.

Correct AnswerverifiedShow Answer

If a person eats large quantities of food and then intentionally vomits,constantly going through what are called binge and purge patterns,they most likely suffer from the eating disorder known as

Correct AnswerverifiedShow Answer

Why must organisms eat?

Correct AnswerverifiedShow Answer

When the concentration of solutes in fluid is higher outside the cell than inside,

Correct AnswerverifiedShow Answer

Homeostasis is defined as

Correct AnswerverifiedShow Answer

Alcohol reduces ADH secretion that in turn does what?

Correct AnswerverifiedShow Answer

The process used to control the level of water and ions in body fluids is termed

Correct AnswerverifiedShow Answer

If presented with a person who was malnourished because of a refusal to eat,you would diagnose anorexia nervosa.

Correct AnswerverifiedShow Answer

Like the kidney,a dialysis machine filters all but what out of the blood?

Correct AnswerverifiedShow Answer

Which produces bile?

Correct AnswerverifiedShow Answer

The hormone secreted by the posterior pituitary that causes the reabsorption of more water by the kidney is

Correct AnswerverifiedShow Answer

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

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

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