Neuron Signaling Quiz

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About this activity

Neuron basics and action potentials

Created by

Reem Zakareya

Saudi Arabia

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2	dania January 29, 2026	% 80	01:00

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Froggy Jumps Neuron Signaling QuizOnline version Neuron basics and action potentials by Reem Zakareya 1 What is the typical resting membrane potential of a neuron? a -70 mV b 0 mV c +40 mV 2 During an action potential, which ion influx causes depolarization? a Sodium ions (Na+) b Potassium ions (K+) c Calcium ions (Ca2+) 3 Threshold potential is typically around which value? a -40 mV b -90 mV c -55 mV 4 Which pump helps maintain resting potential? a Ca2+ pump b Na+/K+ ATPase pump c H+ pump 5 At the peak of an action potential, which ion exits the cell to repolarize? a Sodium (Na+) b Potassium (K+) c Chloride (Cl-) 6 All-or-none principle implies what happens if threshold is reached? a Amplitude scales with stimulus b Only subthreshold responses occur c Full-amplitude action potential occurs 7 Which channels open to repolarize the membrane? a Chloride channels b Voltage-gated sodium channels c Voltage-gated potassium channels 8 Hyperpolarization means the membrane potential becomes: a Equal to resting immediately b More positive than resting c More negative than resting potential 9 Where is an action potential typically initiated? a Dendrite b Axon hillock c Soma 10 Propagation speed increases with: a Neurotransmitter type b Myelination and axon diameter c Receptor density

Froggy Jumps

Neuron Signaling QuizOnline version

Neuron basics and action potentials

by Reem Zakareya

What is the typical resting membrane potential of a neuron?

-70 mV

0 mV

+40 mV

During an action potential, which ion influx causes depolarization?

Sodium ions (Na+)

Potassium ions (K+)

Calcium ions (Ca2+)

Threshold potential is typically around which value?

-40 mV

-90 mV

-55 mV

Which pump helps maintain resting potential?

Ca2+ pump

Na+/K+ ATPase pump

H+ pump

At the peak of an action potential, which ion exits the cell to repolarize?

Sodium (Na+)

Potassium (K+)

Chloride (Cl-)

All-or-none principle implies what happens if threshold is reached?

Amplitude scales with stimulus

Only subthreshold responses occur

Full-amplitude action potential occurs

Which channels open to repolarize the membrane?

Chloride channels

Voltage-gated sodium channels

Voltage-gated potassium channels

Hyperpolarization means the membrane potential becomes:

Equal to resting immediately

More positive than resting

More negative than resting potential

Where is an action potential typically initiated?

Dendrite

Axon hillock

Soma

Propagation speed increases with:

Neurotransmitter type

Myelination and axon diameter

Receptor density

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Neuron Signaling Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Neuron Signaling QuizOnline version

by Reem Zakareya

What is the typical resting membrane potential of a neuron?

During an action potential, which ion influx causes depolarization?

Threshold potential is typically around which value?

Which pump helps maintain resting potential?

At the peak of an action potential, which ion exits the cell to repolarize?

All-or-none principle implies what happens if threshold is reached?

Which channels open to repolarize the membrane?

Hyperpolarization means the membrane potential becomes:

Where is an action potential typically initiated?

Propagation speed increases with:

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