1. Which of the follow are true of synaptic potentials and action potentials? Se
ID: 277118 • Letter: 1
Question
1. Which of the follow are true of synaptic potentials and action potentials?
Select one:
a. Synaptic potentials and action potentials each differ in size depending on the input.
b. Synaptic potentials are all-or-none while action potentials differ in size.
c. Synaptic potentials and action potentials are all-or-none.
d. Synaptic potentials differ in size while action potentials are all-or-none..
2. A second action potential cannot be generated during the absolute refractory period because.....
Select one:
a. The voltage-gated Na+ is already open.
b. The voltage-gated Na+ channel has not been reset.
c. Voltage gated K+ channels are open.
d. Voltage-gated K+ channels have not been reset.
e. Both A and B are correct.
f. Both C and D are correct.
g. All of the above are correct.
Explanation / Answer
Ans 1 : d) Synaptic potentials differ in size while action potentials are all-or-none
The synaptic potentials differ in size as their amplitude depends on the size of stimulus , whereas the action potentials are all-or-none. The former is smaller in size and the later is relatively larger.
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