HBS/PLTW - Unit 2 (Action Potential Exam)

The part of the neuron that receives incoming messages is the

• dendrite

• axon

• cell body

• axon terminal

The part of the neuron that is protected by the myelin sheath is the

• cell body

• dendrites

• axon

• axon terminals

The cell body contains the

• dendrites

• axon terminals

• nucleus and many organelles

• myelin sheath

Tags

NGSS.MS-LS1-2

When a neuron is at REST,

• the inside of the neuron is negatively charged compared to the outside.

• the inside of the neuron is positively charged compared to the outside.

• there is no charge difference established

• none of these is true

What maintains the resting membrane potential in a neuron?

• sodium-potassium pumps

• sodium channels

• potassium channels

• gravity

Tags

NGSS.MS-LS1-2

Depolarization is occuring at number

• 1

• 2

• 4

• 5

Tags

NGSS.HS-PS3-5

When a neuron is not engaged in an impulse.

• Resting potential
• Action potential
• Neural potential
• Synaptic potential

-70 mV is the measure of a

• Threshold Potential
• Action Potential
• Resting Potential
• End Point Potential

Tags

NGSS.HS-PS2-5

The sodium-potassium pump is involved in establishing the resting membrane potential. 

• True
• False

Which ions are involved in an action potential?

• Na; Cl
• Na; K
• K; Cl
• Na; Ca