Free Printable HAP9.3-9.4 Action Potentials Review

Free Printable Worksheets

Worksheets

HAP9.3-9.4 Action Potentials Review

Total questions: 20

Worksheet time: 10mins

Name

Class

Date

1.

What kind of signal is an action potential?

a)

chemical

b)

electrical

2.

Neuron resting potential

a)

-70mV

b)

-55mV

c)

+30mV

d)

<70mV

3.

Threshold to initiate an action potential

a)

-70mV

b)

-55mV

c)

+30mV

d)

<70mV

4.

Depolarized membrane potential

a)

-70mV

b)

-55mV

c)

+30mV

d)

<70mV

5.

Hyperpolarized membrane potential

a)

-70mV

b)

-55mV

c)

+30mV

d)

<70mV

6.

Polarized membrane potential

a)

-70mV

b)

-55mV

c)

+30mV

d)

<70mV

7.

Maintained by NA/K pumps and leak channels

a)

-70mV

b)

-55mV

c)

+30mV

d)

<70mV

8.

State maintained by NA/K pumps and leak channels

a)

polarized

b)

depolarized

c)

hyperpolarized

9.

Results from opening of gated Na channels

a)

polarized

b)

depolarized

c)

hyperpolarized

10.

Results from opening of gated K channels

a)

polarized

b)

depolarized

c)

hyperpolarized

11.

Ions move through leak channels due to

a)

diffusion

b)

active transport

c)

pumps

d)

osmosis

12.

Ions move through open gated channels due to

a)

diffusion

b)

active transport

c)

pumps

d)

osmosis

13.

Membrane potential at #1

a)

polarized

b)

depolarized

c)

hyperpolarized

14.

Which channels are open at time #1?

a)

leak channels only

b)

gated Na channels

c)

gated K channels

d)

none

15.

Which channels open FIRST at time #2?

a)

leak channels only

b)

gated Na channels

c)

gated K channels

d)

none

16.

Which channels open SECOND at time #2?

a)

leak channels only

b)

gated Na channels

c)

gated K channels

d)

none

17.

Which term best describes time #4

a)

polarized

b)

depolarization

c)

repolarization

d)

hyperpolarization

18.

Absolute refractory period

a)

1

b)

2

c)

3

d)

4

19.

Relative refractory period

a)

1

b)

2

c)

3

d)

4

20.

ATP is required to run

a)

Na/K pumps

b)

leak channels

c)

gated channels

d)

myelin sheaths

Reset

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