U4L2 Nerve impulse and action potential graph review

U4L2 Nerve impulse and action potential graph review

12th Grade

19 Qs

quiz-placeholder

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 U4L2 Nerve impulse and action potential graph review

U4L2 Nerve impulse and action potential graph review

Assessment

Quiz

Science

12th Grade

Hard

Created by

Quizizz Content

FREE Resource

19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Depolarization occurs when

sodium channels open

potassium channels open

sodium channels close

potassium channels close

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

When a stimulus approaches the axon, it opens up channels to allow what chemical ion to flow into the axon?

sodium

iron

potassium

calcium

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Returning back to the resting phase is called -

polarization

conductivity

depolarization

repolarization

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image
Which ions are involved in the electrical nerve impulse?
Iodine and Sodium
Potassium and Sodium
Iron and Sodium
Calcium and Iodine

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Why is -55 mV a significant number?
This is the largest charge achieved during an action potential
This is the threshold required to complete an action potential
This is the resting charge of a neuron
This is the charge when all the sodium is inside the cell

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

when does the stimuli cause an action potential?

when it reaches threshold

just below the threshold

just above threshold

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

When a neuron is resting, the inside of the axon has a ____________ charge.
positive
negative

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