Socrative bio 210 Comprehensive Test Prep Actual Questions And Correct Detailed Answers.
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Course
BIO 210
Institution
BIO 210
"Staircase" and "warm up" are alternative names for ___________, an increased muscle response to a constant stimulus. - correct answer treppe
The are found at the initial segment and conductive segment of the neuron.
a. voltage-gated Ca++ channel
...
"Staircase" and "warm up" are alternative names for ___________, an increased muscle response to a
constant stimulus. - correct answer treppe
The are found at the initial segment and conductive segment of the neuron.
a. voltage-gated Ca++ channel
b. voltage-gated K+ channel
c. chemically gated K+ channel
d. chemically gated Cl- channel
e. voltage-gated Na+ channel - correct answer b and e
Which of the following statements about depolarization is false? - correct answer
depolarization results in more negative membrane potential
Which sequence correctly lists the changes that allow the thick and thin filaments to slide past one
another in skeletal muscle contraction? - correct answer Attach - pivot -
detach - return
The narrow space that separates the motor neuron and the skeletal muscle fiber in a neuromuscular
junction is called the: - correct answer synaptic cleft
These structural characteristics apply to cardiac muscle: - correct answer
single, centrally located nucleus
striated
Waves of contraction traverse an entire sheet of visceral smooth muscle due to the numerous gap
junctions that allow action potentials to pass directly from cell to cell. - correct answer
True
, Which functional area of the neuron propagates the action potential?
a. receptive segment
b. initial segment
c. conductive segment
d. transmissive segment - correct answer conductive segment
Which substances are more prevalent in the cytosol?
a. Na+
b. K+
c. Ca++
d. Cl-
e. P- - correct answer b and e
Incomplete tetanus occurs when action potentials are produced so rapidly that the muscle completely
contracts without any relaxation.
TRUE OR FALSE - correct answer false
In general, fast twitch fibers generate less power than slow twitch fibers.
TRUE OR FALSE - correct answer false
The type of fibers specialized to continue contracting for extended periods of time, as would be required
in running a marathon, for example, are _____ fibers. - correct answer slow
fibers
These statements about creatine phosphate are true except: - correct answer
supports intense exercise for up to 3 minutes
What type of propagation would this neuron use based on its structural features? - correct answer
saltatory propagation
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