Navigation » List of Schools » Los Angeles Mission College » History » History 011 – US History to 1877 » Spring 2021 » Week 2 Quiz
Below are the questions for the exam with the choices of answers:
Question #1
A potassium enters, depolarizing the cell to a positive value.
B potassium enters, repolarizing the cell to a positive value.
C potassium enters, repolarizing the cell to a negative value.
D potassium exits, depolarizing the cell to an even more negative value.
E potassium exits, repolarizing the cell to a negative value.
Question #2
A a hill where the high point is the farthest away from the threshold value.
B a valley where the low point approaches the threshold value.
C a hill where the high point approaches the threshold value.
D a valley where the low point is the farthest away from the threshold value.
Question #3
A opening of chemically gated calcium channels and diffusion of calcium into the synaptic knob.
B opening of voltage-gated calcium channels and diffusion of calcium into the synaptic knob.
C closure of voltage-gated calcium channels in the synaptic knob membrane.
D opening of voltage-gated calcium channels and diffusion of calcium out of the synaptic knob to the interstitial fluid.
E opening of chemically gated calcium channels and diffusion of calcium out of the synaptic knob to the interstitial fluid.
Question #4
A EPSP.
B IPSP.
Question #5
A TRUE
B FALSE
Question #6
A FALSE
B TRUE
Question #7
A spatial summation.
B suprathreshold hyperpolarization.
C temporal summation.
D several action potentials.
Question #8
A C fibers, and they conduct impulses at 1 meter per second.
B A fibers, and they conduct impulses at 10 meters per second.
C C fibers, and they conduct impulses at 100 meters per second.
D D fibers, and they conduct impulses at 0.1 meter per second.
E D fibers, and they conduct impulses at 0.01 meter per second.
Question #9
A neurofibril nodes.
B myelinated regions.
Question #10
A recruitment.
B spatial summation.
C facilitation.
D temporal summation.
E presynaptic potentiation.
Question #11
A varies in size depending on the magnitude of the stimulus (larger voltage change for stronger stimulus).
B travels the length of the nerve fiber (is long-distance).
C lasts for several seconds after ion channels have opened, closed, and reset.
D is all or none (always the same intensity).
Question #12
A Absolute refractory period
B Relative refractory period
Question #13
A one microelectrode inside the neuron and another in the interstitial fluid.
B two electrodes inside the neuron.
C one electrode inside the cell and another inside another cell.
D one electrode inside the cell and another outside the body.
Question #14
A sodium-potassium pumps.
B chemically gated channels.
C mechanically gated channels.
D voltage-gated channels.
Question #15
A being engulfed by a supporting glial cell.
B uptake by the postsynaptic cell.
C reuptake by the presynaptic cell.
D degradation by an enzyme.
Question #16
A either the entry of a cation or the exit of an anion.
B either the entry of an anion or the exit of a cation.
C the entrance of either sodium or potassium.
D the entry of any ion.
Question #17
A chemically, dendrite
B voltage-, axon
C voltage-, dendrite
D chemically, axon
Question #18
A directly related to both voltage and resistance.
B directly related to voltage and inversely related to resistance.
C indirectly related to voltage and directly related to resistance.
D inversely related to both voltage and resistance.
Question #19
A reuptake by the presynaptic cell.
B phagocytosis by a macrophage.
C dendritic lassos.
D endocytosis by the postsynaptic cell.
Question #20
A their activated state to their resting state.
B their resting state to their inactivated state.
C their inactivated state to their resting state.
D their resting state to their activated state.