BMS 300 exam 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Camillo Golgi was a - CORRECT ANSWER - reticularist
Santiago Ramon y Cajal was a - CORRECT ANSWER - cellularist and the father of the
neuron doctrine
The dentrite is
a. input
b. conductile
c. output - CORRECT ANSWER -a
the axon is
a. input
b. conductile
c. output - CORRECT ANSWER -b
The axon terminal is
a. input
b. conductile
c. output - CORRECT ANSWER -c
Protein synthesis occurs in the
a. cell body
b. axon
c. dentrite
d. terminal - CORRECT ANSWER -a
,the input region lacks ___, but contains ____
a. ligand-gated channels, voltage gated channels
b. K+ leak channels, voltage gated channels
c. voltage-gated channels, ligand gated channels
d. ligand-gated channels, K+ leak channels - CORRECT ANSWER -c
The fast axoplasmic transport includes proteins from the __________ and transported on
___________. The slow axoplasmic transport includes proteins from the ____________.
a. rough ER, microtubules, cytoplasm
b. microtubules, cytoplasm, rough ER
c. cytoplasm, rough ER, microtubules - CORRECT ANSWER -a
Proteins are transported via axoplasmic transport at slow rates (0.5 to 2 mm per day) and fast
rates (200 to 400 mm per day). The difference in transport rate directly results from:
a. the difference in the time spend per day in transport
b. the site where the protein is synthesized
c. the substrate molecule used by the motor protein
d. the motor protein used to transport the proteins - CORRECT ANSWER -a
In resting condition, ____ is high outside the cell and ___ is high inside the cell.
a. Na+, K+
b. K+, Na+ - CORRECT ANSWER -a
The resting membrane potential is approximately
a. +40 mv
b. -40 mv
c. -70 mv
, d. +70 mv - CORRECT ANSWER -c
T or F on the dendrite or input region of a neuron has ion channels - CORRECT
ANSWER -F
What is equilibrium potential? - CORRECT ANSWER - when the electrical gradient is
equal and opposite to the chemical gradient
Schwann call are located in the ___ and oligodendrocytes are found in the ____
a. PNS, CNS
b. CNS, PNS - CORRECT ANSWER -a
What are functions of astrocytes
-regulate extracellular K+ concentrations
-clear out excess amounts of neurotransmitters
-form concentric rings around neurons
-surround the synaptic cleft between neurons - CORRECT ANSWER - regulate
extracellular K+ concentrations, clear out excess amounts of neurotransmitters, surround the
synaptic cleft between neurons
The concentric rings formed by oligodendrocytes are called
a. schwann cells
b. astrocytes
c. myelin - CORRECT ANSWER -c
What channels are located exclusively at the Nodes of Ranvier?
-VG K+ channels
-VG Na+ channels
-VA Ca2+ channels
Exam Questions and CORRECT Answers
Camillo Golgi was a - CORRECT ANSWER - reticularist
Santiago Ramon y Cajal was a - CORRECT ANSWER - cellularist and the father of the
neuron doctrine
The dentrite is
a. input
b. conductile
c. output - CORRECT ANSWER -a
the axon is
a. input
b. conductile
c. output - CORRECT ANSWER -b
The axon terminal is
a. input
b. conductile
c. output - CORRECT ANSWER -c
Protein synthesis occurs in the
a. cell body
b. axon
c. dentrite
d. terminal - CORRECT ANSWER -a
,the input region lacks ___, but contains ____
a. ligand-gated channels, voltage gated channels
b. K+ leak channels, voltage gated channels
c. voltage-gated channels, ligand gated channels
d. ligand-gated channels, K+ leak channels - CORRECT ANSWER -c
The fast axoplasmic transport includes proteins from the __________ and transported on
___________. The slow axoplasmic transport includes proteins from the ____________.
a. rough ER, microtubules, cytoplasm
b. microtubules, cytoplasm, rough ER
c. cytoplasm, rough ER, microtubules - CORRECT ANSWER -a
Proteins are transported via axoplasmic transport at slow rates (0.5 to 2 mm per day) and fast
rates (200 to 400 mm per day). The difference in transport rate directly results from:
a. the difference in the time spend per day in transport
b. the site where the protein is synthesized
c. the substrate molecule used by the motor protein
d. the motor protein used to transport the proteins - CORRECT ANSWER -a
In resting condition, ____ is high outside the cell and ___ is high inside the cell.
a. Na+, K+
b. K+, Na+ - CORRECT ANSWER -a
The resting membrane potential is approximately
a. +40 mv
b. -40 mv
c. -70 mv
, d. +70 mv - CORRECT ANSWER -c
T or F on the dendrite or input region of a neuron has ion channels - CORRECT
ANSWER -F
What is equilibrium potential? - CORRECT ANSWER - when the electrical gradient is
equal and opposite to the chemical gradient
Schwann call are located in the ___ and oligodendrocytes are found in the ____
a. PNS, CNS
b. CNS, PNS - CORRECT ANSWER -a
What are functions of astrocytes
-regulate extracellular K+ concentrations
-clear out excess amounts of neurotransmitters
-form concentric rings around neurons
-surround the synaptic cleft between neurons - CORRECT ANSWER - regulate
extracellular K+ concentrations, clear out excess amounts of neurotransmitters, surround the
synaptic cleft between neurons
The concentric rings formed by oligodendrocytes are called
a. schwann cells
b. astrocytes
c. myelin - CORRECT ANSWER -c
What channels are located exclusively at the Nodes of Ranvier?
-VG K+ channels
-VG Na+ channels
-VA Ca2+ channels
