BIO 235 FINAL EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
the resting membrane potential of all cells is
a) negative inside compared to the ouside
b)negative outside compared to the inside
c)zero
d)positive inside compard to the outside - ANSWERS-a)
negative inside compared to the ouside
the magnitude of a signal in the nervous system increases
when
a)the size of actoin potential increase
b)the number of action potentials decrease
c)the number of action potential increase
d)the size of action potentials decrease - ANSWERS-c)the
number of action potential increase
,sympathetic post-ganglionic neurons release ___onto the
target tissue
a)Acetyl Choline
b)nonrepinephrine
c)GABA
d)Glutamiate - ANSWERS-b)nonrepinephrine
acetyle choline released by parasympatheitc post-ganglionic
neurons binds to
a)nACh receptors
b)nACh receptors
c)adrenergic receptors
d)NMDA receptors - ANSWERS-b)nACh receptors
if the sodium concentration in the blood plasma is high then
the sodium concetnraion in the intersitial fluid should be
high
a) true
b) false - ANSWERS-a) true
,In the alveolus, ____squamous epithelial cells are
responsible for ___, while ___cells are responsible for ____.
a) Type 1; surfactant secretion; Type 2, gas exchange
b) type 1; debris removal; type 2; surfactant secretion
c) type 3; debris removal; type 1; gas exchange
d) type 1; gas exchange; type 2: surfactant secretion -
ANSWERS-d) type 1; gas exchange; type 2: surfactant
secretion
There is no net air flow into or out of the lungs when
a) P alveolus = P atmostpher
b) P alveolus< P atmostphere
c) P pleural wall > P atmostphere
d) P atmosphere< P pleural wall - ANSWERS-a) P alveolus = P
atmosphere
What keeps the lungs from collapsing
Check the - ANSWERS-b) trans pulmonary negative pressure
caused by negative pressure from pleural cavity
Identify the correct sequence of events for inspiration
, a) diaphragm & inspiratory intercostals relax, lungs expand,
air flows into alveoli
b) diaphragm & inspiratory intercostals contract; lungs
expand, air flows out of the alveoli
c) diaphragm & inspiratory intercostals contract, lungs
expand, air flows into alveoli
d)diaphragm & expiratory intercostals relax, lungs contract,
air flows out of alveoli - ANSWERS-c) diaphragm &
inspiratory intercostals contract, lungs expand, air flows into
alveoli
the main determiners of lung compliance are
a) lung tissue thickness, surface tension of fluid on the inner
lung surface
b) lung tissue perforations, surface tension of fluid on the
inner lung surface
c) lung tissue surface area, surface tension of fluid on the
inner lung surface
d) lung tissue thickness, surface tension of fluid on the outer
lung surface - ANSWERS-a) lung tissue thickness, surface
tension of fluid on the inner lung surface
lung compliance is defined as
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
the resting membrane potential of all cells is
a) negative inside compared to the ouside
b)negative outside compared to the inside
c)zero
d)positive inside compard to the outside - ANSWERS-a)
negative inside compared to the ouside
the magnitude of a signal in the nervous system increases
when
a)the size of actoin potential increase
b)the number of action potentials decrease
c)the number of action potential increase
d)the size of action potentials decrease - ANSWERS-c)the
number of action potential increase
,sympathetic post-ganglionic neurons release ___onto the
target tissue
a)Acetyl Choline
b)nonrepinephrine
c)GABA
d)Glutamiate - ANSWERS-b)nonrepinephrine
acetyle choline released by parasympatheitc post-ganglionic
neurons binds to
a)nACh receptors
b)nACh receptors
c)adrenergic receptors
d)NMDA receptors - ANSWERS-b)nACh receptors
if the sodium concentration in the blood plasma is high then
the sodium concetnraion in the intersitial fluid should be
high
a) true
b) false - ANSWERS-a) true
,In the alveolus, ____squamous epithelial cells are
responsible for ___, while ___cells are responsible for ____.
a) Type 1; surfactant secretion; Type 2, gas exchange
b) type 1; debris removal; type 2; surfactant secretion
c) type 3; debris removal; type 1; gas exchange
d) type 1; gas exchange; type 2: surfactant secretion -
ANSWERS-d) type 1; gas exchange; type 2: surfactant
secretion
There is no net air flow into or out of the lungs when
a) P alveolus = P atmostpher
b) P alveolus< P atmostphere
c) P pleural wall > P atmostphere
d) P atmosphere< P pleural wall - ANSWERS-a) P alveolus = P
atmosphere
What keeps the lungs from collapsing
Check the - ANSWERS-b) trans pulmonary negative pressure
caused by negative pressure from pleural cavity
Identify the correct sequence of events for inspiration
, a) diaphragm & inspiratory intercostals relax, lungs expand,
air flows into alveoli
b) diaphragm & inspiratory intercostals contract; lungs
expand, air flows out of the alveoli
c) diaphragm & inspiratory intercostals contract, lungs
expand, air flows into alveoli
d)diaphragm & expiratory intercostals relax, lungs contract,
air flows out of alveoli - ANSWERS-c) diaphragm &
inspiratory intercostals contract, lungs expand, air flows into
alveoli
the main determiners of lung compliance are
a) lung tissue thickness, surface tension of fluid on the inner
lung surface
b) lung tissue perforations, surface tension of fluid on the
inner lung surface
c) lung tissue surface area, surface tension of fluid on the
inner lung surface
d) lung tissue thickness, surface tension of fluid on the outer
lung surface - ANSWERS-a) lung tissue thickness, surface
tension of fluid on the inner lung surface
lung compliance is defined as
