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Biology 22: PhysioEx Exam Questions and Answers (Latest Update 2024)
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Biology 22: PhysioEx Exam Questions and Answers (Latest Update 2024)
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Biology 22: PhysioEx Exam Questionsand Answers (Latest Update 2024)
assuming that the resting potential of a sensory neuron is -70
mV, which of the following represents a depolarization? -
Correct Answer ✅ a change to -60 mV
which of the following is a sensory modality (type of sense)? -
Correct Answer ✅ -touch
-smell
-sight
-pain
which of the following is a sensory stimulus? - Correct
Answer ✅ -pressure
-chemical odorants
-light
which of the following is true of the response of a sensory
neuron to the appropriate sensory stimulus? - Correct
Answer ✅ -it can be called a receptor potential, and it is a
gradient potential
-it is a change in a resting membrane potential
, Biology 22: PhysioEx Exam Questions
and Answers (Latest Update 2024)
the adequate stimulus for a Pacinian corpuscle is pressure or
vibration on the skin. which of the following modalities will
induce the largest amplitude receptor potential in the
Pacinian corpuscle? - Correct Answer ✅ moderate-intensity
pressure
the adequate stimuli for olfactory receptors are chemicals,
typically odorant molecule. which of the following modalities
will induce the largest amplitude receptor potential in the
olfactory receptor? - Correct Answer ✅ moderate-intensity
chemical
why didn't the Pacinian corpuscle respond to high-intensity
light? - Correct Answer ✅ light-transducing proteins are not
present in the Pacinian corpuscle
judging from these results, does light have a smell? - Correct
Answer ✅ no
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