Question 1

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) D) and E)
G) A) and B)

Question 2

The enzyme that breaks down the main sugar found in milk is

Accepted Answer

A)  lipase.
B)  amylase.
C)  lactase.
D)  pepsin.
E)  bilE.F) B) and E)
G) C) and D)

Question 3

A diuretic is

Accepted Answer

A)  a substance that decreases the permeability of the tubules to water.
B)  a substance that increases the volume of blood.
C)  a substance that decreases the volume of fat in the body.
D)  a substance that increases the volume of urine.
E)  a substance that increases the production of ADH.F) C) and D)
G) B) and E)

Question 4

The part of the brain that is primarily involved in regulating the body temperature of humans is the

Accepted Answer

A)  cerebrum.
B)  cerebellum.
C)  hypothalamus.
D)  pons.
E)  medulla oblongata.F) All of the above
G) B) and C)

Question 5

The control of an organism's body temperature is

Accepted Answer

A)  osmoregulation.
B)  photoregulation.
C)  chemoregulation.
D)  thermoregulation.
E)  diffusion.F) A) and D)
G) A) and B)

Question 6

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) A) and E)
G) A) and B)

Question 7

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 B)
G) None of the above

Question 8

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)  rectum.F) B) and E)
G) B) and C)

Question 9

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

Accepted Answer

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

Question 10

Tiny finger-like projections along the small intestine that are used to absorb nutrients are

Accepted Answer

A)  ciliA.
B)  flagella.
C)  villi.
D)  Pacinian corpuscles.
E)  tentacles.F) All of the above
G) A) and D)

Question 11

The tube that connects the urinary bladder to the outside of the human body is the

Accepted Answer

A)  uvulA.
B)  renal vein.
C)  nephron.
D)  urethra.
E)  ureter.F) A) and B)
G) A) and C)

Question 12

Which of the following produces bile?

Accepted Answer

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

Question 13

A person who is lactose intolerant may be able to eat dairy products such as yogurt because those products have already been fermented.

Accepted Answer

A) True 
 B)False

Question 14

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 B)
F) A) and C)

Question 15

Which of the following is not considered to be a primary organ in the human digestive system?

Accepted Answer

A)  esophagus
B)  mouth
C)  liver
D)  stomach
E)  small intestineF) D) and E)
G) A) and B)

Question 16

Which of the following diseases is caused by a deficiency of niacin?

Accepted Answer

A)  scurvy
B)  pellagra
C)  rickets
D)  blindness
E)  anemiaF) C) and D)
G) A) and D)

Question 17

In the section "Investigating Life: Sniffing Out the Origin of Feathers",the scientists looked for a correlation between which two variables?

Accepted Answer

A)  mass and nasal cross section
B)  mass and endothermy
C)  extinction and mass
D)  evolution and mass
E)  extinction and nasal cross sectionF) B) and C)
G) A) and E)

Question 18

Unlike humans,cows emit up to 200 L of methane (CH4) each day through belching.Which of the following explains this difference?

Accepted Answer

A)  Cows have a stomach.
B)  Cows have an intestine.
C)  Cows don't have a sphincter.
D)  Cows don't have an esophagus.
E)  Cows have a rumen.F) A) and B)
G) B) and D)

Question 19

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

Question 20

In animals,the pouch that forms the entrance to the large intestine is the

Accepted Answer

A)  gastrovascular cavity.
B)  rumen.
C)  cecum.
D)  anus.
E)  appendix.F) B) and D)
G) A) and E)

Exam 28: Regulating Temperature, nutrients, and Body Fluids

Unlike humans,cows emit up to 200 L of methane (CH4) each day through belching.Which of the following explains this difference?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A person who is lactose intolerant may be able to eat dairy products such as yogurt because those products have already been fermented.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Tiny finger-like projections along the small intestine that are used to absorb nutrients are

Correct AnswerverifiedShow Answer

The part of the brain that is primarily involved in regulating the body temperature of humans is the

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Sniffing Out the Origin of Feathers",the scientists looked for a correlation between which two variables?

Correct AnswerverifiedShow Answer

Which of the following diseases is caused by a deficiency of niacin?

Correct AnswerverifiedShow Answer

The control of an organism's body temperature is

Correct AnswerverifiedShow Answer

Why must organisms eat?

Correct AnswerverifiedShow Answer

Which of the following produces bile?

Correct AnswerverifiedShow Answer

In animals,the pouch that forms the entrance to the large intestine is the

Correct AnswerverifiedShow Answer

The enzyme that breaks down the main sugar found in milk is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The tube that connects the urinary bladder to the outside of the human body is the

Correct AnswerverifiedShow Answer

Which of the following is not considered to be a primary organ in the human digestive system?

Correct AnswerverifiedShow Answer

A diuretic is

Correct AnswerverifiedShow Answer

Unlike humans,cows emit up to 200 L of methane (CH₄) each day through belching.Which of the following explains this difference?

Correct Answer
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