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