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Chapter 23 Quiz
Return to Animal Physiology 4e Student Resources
Chapter 23 Quiz
Quiz Content
*
not completed
.
Which statement is the best definition of external respiration?
The bulk flow of air or water to and from the gas-exchange membrane
correct
incorrect
The thin layer of tissue, typically consisting of one or two epithelia, that separates the internal tissues of the animal from the environment
correct
incorrect
The process by which O
2
is transported from the environment to the gas-exchange membrane and CO
2
is transported from the membrane to the environment
correct
incorrect
The use of O
2
at the mitochondria, along with the production of CO
2
, during aerobic metabolism
correct
incorrect
*
not completed
.
The partial pressure of O
2
in the blood leaving the breathing organ depends on the
amount of blood.
correct
incorrect
flow of air or water at the interface.
correct
incorrect
size of the respiratory organ.
correct
incorrect
amount of blood and flow of air or water at the interface.
correct
incorrect
*
not completed
.
Which morphology allows for the most efficient gas exchange?
Cocurrent
correct
incorrect
Countercurrent
correct
incorrect
Cross-current
correct
incorrect
Concurrent
correct
incorrect
*
not completed
.
A blood sample that has an extremely low partial pressure of CO
2
is most likely from a(n)
fish.
correct
incorrect
marine animal.
correct
incorrect
terrestrial animal.
correct
incorrect
animal exchanging respiratory gas with water.
correct
incorrect
*
not completed
.
Which animal group tends to have the thinnest gas-exchange membrane?
Mammals
correct
incorrect
Birds
correct
incorrect
Nonavian reptiles
correct
incorrect
Amphibians
correct
incorrect
*
not completed
.
The protective external flap that covers the gills on a fish's head is called the
operculum.
correct
incorrect
secondary lamellae.
correct
incorrect
gill arches.
correct
incorrect
gill slits.
correct
incorrect
*
not completed
.
The major stimulus for increased ventilation in fish is
decreased O
2
.
correct
incorrect
increased exercise.
correct
incorrect
decreased temperature.
correct
incorrect
both decreased O
2
and increased exercise.
correct
incorrect
*
not completed
.
Carbon dioxide excretion in the bullfrog is highest across the
lungs only in the adult stage.
correct
incorrect
skin at all stages.
correct
incorrect
gills during the tadpole stage.
correct
incorrect
gills during the adult stage only.
correct
incorrect
*
not completed
.
Which animals use positive pressure ventilation?
Amphibians
correct
incorrect
Birds
correct
incorrect
Mammals
correct
incorrect
Reptiles
correct
incorrect
*
not completed
.
Which statement regarding mammalian ventilation is
false
?
Gas exchange occurs in the respiratory bronchioles.
correct
incorrect
Inspiration always requires muscle contraction.
correct
incorrect
Expiration always requires muscle contraction.
correct
incorrect
There is no convective movement of gas in the alveoli.
correct
incorrect
*
not completed
.
The maximal possible tidal volume is called the
inspiratory reserve volume.
correct
incorrect
vital capacity.
correct
incorrect
expiratory reserve volume.
correct
incorrect
tidal volume.
correct
incorrect
*
not completed
.
In mammals, moving air into the lungs is achieved mainly by
relaxing the abdominals.
correct
incorrect
contracting the diaphragm.
correct
incorrect
relaxing the diaphragm.
correct
incorrect
contracting the abdominals.
correct
incorrect
*
not completed
.
In mammals, ventilation is modulated by chemosensation of
CO
2
.
correct
incorrect
CO
2
and H
+
.
correct
incorrect
CO
2
and O
2
.
correct
incorrect
CO
2
, H
+
, and O
2
.
correct
incorrect
*
not completed
.
The substance responsible for the prevention of alveolar collapse is
surfactant.
correct
incorrect
mucous.
correct
incorrect
water.
correct
incorrect
anticohesive.
correct
incorrect
*
not completed
.
The bellows action used by birds in breathing is generated by
contraction and relaxation of the diaphragm.
correct
incorrect
contraction and relaxation of intercostals.
correct
incorrect
expansion and compression of the air sacs.
correct
incorrect
expansion and compression of the parabronchi.
correct
incorrect
*
not completed
.
The gas-exchange system in birds is
concurrent.
correct
incorrect
countercurrent.
correct
incorrect
cross-current.
correct
incorrect
anticurrent.
correct
incorrect
*
not completed
.
Within the molluscs, a lung modified from the mantle cavity to allow respiration of air on land is seen in which group?
Snails
correct
incorrect
Bivalves
correct
incorrect
Cephalopods
correct
incorrect
Decapod crustaceans
correct
incorrect
*
not completed
.
The entrance to the insect tracheal system is via
modified lungs.
correct
incorrect
modified gills.
correct
incorrect
air sacs.
correct
incorrect
spiracles.
correct
incorrect
*
not completed
.
In insects, oxygen moves through the tracheal system by
diffusion.
correct
incorrect
both diffusion and convection.
correct
incorrect
rhythmic tracheal compression.
correct
incorrect
diffusion, convection, and rhythmic tracheal compression.
correct
incorrect
*
not completed
.
Which animal uses a tracheal system?
Sea star
correct
incorrect
Mollusc
correct
incorrect
Crayfish
correct
incorrect
Flea
correct
incorrect
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