Uwo Bio 212 Exam 2 Test Bank Questions And
Answers Verified by Experts
(all the apply) Which ion channel opening serve to HYPERPOLARIZE a cell?
Calcium
Chloride
Potassium
Sodium Chloride
Potassium
(one best answer) The part of the neuron where "inputs" occur is the:
Dendrite
Dendrite tip
Axon
Axon terminal Dendrite tip
(one best answer) The part of the neuron where "outputs" occur is the:
Dendrite
, Uwo Bio 212 Exam 2 Test Bank Questions And
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Dendrite tip
Axon
Axon terminal Axon Terminal
(one best answer) Signals travel extremely fast from a neurons dendrite tips to axon terminal
because they are:
Carried by the blood
Chemical
Electrical
(Statement is false) Electrical
(one best answer) Signals travel relatively slowly from the pre-synaptic neuron's axon terminal to
the post-synaptic cell's membrane because they are:
Carried by the blood
Chemical
Electrical
, Uwo Bio 212 Exam 2 Test Bank Questions And
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(Statement is false) Chemical
(one best answer) Which types of gated ion channels are prevalent on the dendrite tips of
MECHANORECEPTOR sensing neurons?
LGSC (ligand gated sodium channels)
SGCaC (stretch gated calcium channels)
SGSC (stretch gated chloride channels)
SGSC (stretch gated sodium channels) SGSC (stretch gated sodium channels)
(one best answer) Which types of gated ion channels are prevalent on the dendrite tips
ofCHEMORECEPTOR neurons?
LGSC (ligand gated sodium channels)
LGCaC (ligand gated calcium channels)
LGClC (ligand gated chloride channels)
SGSC (stretch gated sodium channels) LGSC (ligand gated sodium channels)
, Uwo Bio 212 Exam 2 Test Bank Questions And
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(one best answer) Which types of gated ion channels are prevalent on the dendrite tips of
THERMORECEPTOR neurons?
LGSC (ligand gated sodium channels)
TGCaC (temperature gated calcium channels)
TGClC (temperature gated chloride channels)
TGSC (temperature gated sodium channels) TGSC (temperature gated sodium channels)
(true/false) Signals tend to "decay" (weaken) with distance from their source. The decay of signal
inputs to neurons due to K+ leakage is more of a problem for larger neurons (>1mm) than it is
for smaller ones. That problem was solved by the evolution of the action potential. False
(true/false) When speaking of an excitable cell's voltage change away from Vrest, the term
"amplitude" ("height") of the change is actually in units of millivolts. True
(all that apply) Which of the following statements about action potentials is/are TRUE?
● APs are created by the cooperative action of slow-opening voltage-gated sodium channels
AND fast-opening voltage-gated potassium channels
Answers Verified by Experts
(all the apply) Which ion channel opening serve to HYPERPOLARIZE a cell?
Calcium
Chloride
Potassium
Sodium Chloride
Potassium
(one best answer) The part of the neuron where "inputs" occur is the:
Dendrite
Dendrite tip
Axon
Axon terminal Dendrite tip
(one best answer) The part of the neuron where "outputs" occur is the:
Dendrite
, Uwo Bio 212 Exam 2 Test Bank Questions And
Answers Verified by Experts
Dendrite tip
Axon
Axon terminal Axon Terminal
(one best answer) Signals travel extremely fast from a neurons dendrite tips to axon terminal
because they are:
Carried by the blood
Chemical
Electrical
(Statement is false) Electrical
(one best answer) Signals travel relatively slowly from the pre-synaptic neuron's axon terminal to
the post-synaptic cell's membrane because they are:
Carried by the blood
Chemical
Electrical
, Uwo Bio 212 Exam 2 Test Bank Questions And
Answers Verified by Experts
(Statement is false) Chemical
(one best answer) Which types of gated ion channels are prevalent on the dendrite tips of
MECHANORECEPTOR sensing neurons?
LGSC (ligand gated sodium channels)
SGCaC (stretch gated calcium channels)
SGSC (stretch gated chloride channels)
SGSC (stretch gated sodium channels) SGSC (stretch gated sodium channels)
(one best answer) Which types of gated ion channels are prevalent on the dendrite tips
ofCHEMORECEPTOR neurons?
LGSC (ligand gated sodium channels)
LGCaC (ligand gated calcium channels)
LGClC (ligand gated chloride channels)
SGSC (stretch gated sodium channels) LGSC (ligand gated sodium channels)
, Uwo Bio 212 Exam 2 Test Bank Questions And
Answers Verified by Experts
(one best answer) Which types of gated ion channels are prevalent on the dendrite tips of
THERMORECEPTOR neurons?
LGSC (ligand gated sodium channels)
TGCaC (temperature gated calcium channels)
TGClC (temperature gated chloride channels)
TGSC (temperature gated sodium channels) TGSC (temperature gated sodium channels)
(true/false) Signals tend to "decay" (weaken) with distance from their source. The decay of signal
inputs to neurons due to K+ leakage is more of a problem for larger neurons (>1mm) than it is
for smaller ones. That problem was solved by the evolution of the action potential. False
(true/false) When speaking of an excitable cell's voltage change away from Vrest, the term
"amplitude" ("height") of the change is actually in units of millivolts. True
(all that apply) Which of the following statements about action potentials is/are TRUE?
● APs are created by the cooperative action of slow-opening voltage-gated sodium channels
AND fast-opening voltage-gated potassium channels
