Human Neurons

The inside of the neuron cell is...

• Positive

• Negative

• Neutral

• The same as the outside

The outside of the neuron is...

• Positve

• Negative

• Neutral

• The same as the inside

_____________ ions lie outside the cell

• Ca+

• K+

• No

• Na+

Where are K+ ions located?

• Outside the cell body

• In the nucleus

• There are no K+ ions

• In the cell

Tags

NGSS.HS-LS1-3

What part of the phospholipid is hydrophobic?

• The head

• The tails

• All of it

• None of it

Does the Na+/K+ pump need energy? If so, what kind?

• It doesn't need energy

• Yes, ATP

• Yes, potential

• Yes, active

Tags

NGSS.HS-LS2-5

Why is the inside of the cell negative?

• The nucleus is negative

• Potassium is negative

• It isn't negative

• More K+ ions leak out than Na+ ions sneak in

How many sodium and potassium ions are pumped out of/ into the cell respectively?

• 4 and 5

• 2 and 3

• 3 and 2

• 5 and 4

Tags

NGSS.HS-LS1-3

What ion is the Na+/K+ pump moving INTO the cell

• Ca+

• Na+

• K+

• O

Which Na+ ion channel door is open when the neuron is at rest?

• The inside

• The outside

• Both

• None