Free Printable Action Potential / Synapse Review

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Action Potential / Synapse Review

Total questions: 21

Worksheet time: 15mins

Name

Class

Date

What is the normal resting potential of a neuron cell membrane?

+40mV

-30mV

+55mV

-70mV

Which ions are involved in an action potential?

Na; Cl

Na; K

K; Cl

Na; Ca

At which point on the diagram does depolarisation of the axon occur?

The sodium potassium pump restores the resting potential. By which process does this work?

Osmosis

Diffusion

Facilitated diffusion

Active transport

What number(s) on the graph represents the THRESHOLD level of stimulus?

1 and 5

When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.

Sodium, depolarization, potassium

Potassium, depoloarization, sodium

sodium, repolarization, potassium

postassium, repolarization, sodium

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

What number on the graph represents the Hyperpolarization phase?

Action potentials run along the ______ from ______ to ________.

axon, dendrites, axon terminals

axon, axon terminals, dendrites

dendrites, axon, axon terminals

axon terminals, axon, dendrites

10.

Neurotransmitters are released from the

Dendrites

Post-synaptic neuron

Presynaptic neuron

Axon

11.

Excess neurotransmitters in the synapse that go back into the presynaptic neuron.

Resting potential

Reuptake

Retroactivity

Repolarization

12.

Axon Terminal Button

Neurotransmitters

Dendrite

Synapse

13.

The area between the pre-synaptic cell and the post-synaptic cell is termed the synapse or synaptic cleft.

True

False

14.

What's in the picture?

synaptic vesicles

neurotransmitters

presynaptic neuron

postsynaptic neuron

synaptic cleft

15.

What's in the picture?

synaptic vesicles

neurotransmitters

presynaptic neuron

postsynaptic neuron

synaptic cleft

16.

Synapses that are ____________ cause a neuron to fire whereas ____________ synapses reduce the likelihood that a neuron will fire.

excitatory; inhibitory

synaptic; terminal

postsynaptic; presynaptic

dendritic; axon

17.

What is the name of the structure that stores neurotransmitters?

Synaptic cleft

Acetylcholine

Receptors

Synaptic vesicles

18.

The neurotransmitter stored in the axon terminal identified as #3

Acetylcholine

Protein Channel

Calcium Ion (Ca²⁺)

Syanptic Cleft

19.

What generates a nerve impulse on the post-synaptic membrane?

Calcium binding with a receptor site

Potassium leaking into the post-synaptic membrane

Neurotransmitter binding with receptor sites

Neurotransmitter being removed from the synapse

20.

Neurotransmitters are released from presynaptic membrane to synaptic cleft by process of

Osmosis

Diffusion

Active transport

Exocytosis

21.

After exocytosis, the neurotransmitters are:

Degraded by enzymes

Degraded by enzymes or recaptured by the post-synaptic structure

Degraded by enzymes or recaptured by the pre-synaptic neuron

Reset

Action Potential / Synapse Review

Total questions: 21

Worksheet time: 15mins

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