Question 1 1 point A neuron is permeable to 2 ions ion X and

Question 1 (1 point)

A neuron is permeable to 2 ions: ion X and ion Y.

The equilibrium potential for X is +10 mV and the equilibrium potential for Y is -50 mV.

If the membrane is equally permeable to both ions, what will the voltmeter show at resting potential?

Question 1 options:

50 mV

-15 mV

-70 mV

15 mV

0 mV

90 mV

-30 mV

-20 mV

Save

Question 2 (1 point)

What is the equilibrium potential for sodium in an intact motor neuron?

Question 2 options:

90 mV

70 mV

60 mV

15 mV

0 mV

-15 mV

-50 mv

-90 mV

Save

Question 3 (1 point)

You are exposing an intact motor neuron to pufferfish toxin. What is the resting potential you will measure?

Question 3 options:

90 mV

70 mV

50 mV

15 mV

0 mV

-15 mV

-50 mv

-90 mV

Save

Question 4 (1 point)

At the equilibrium potential of an ion all the following apply:

Question 4 options:

there is no diffusion of that ion

there is no netflow of that ion

there is no osmosis of that ion

electric force equals diffusion

the voltmeter reads zero

the membrane is permeable to that ion

Save

Question 5 (1 point)

Electric signals travel towards the Brain through which part of the nervous system?

Question 5 options:

Somatic NS

Autonomic NS

Sensory NS

Sympathetic NS

Parasympathetic NS

Save

Question 6 (1 point)

A neuron is permeable to 2 ions: ion X and ion Y.

The equilibrium potential for X is +10 mV and the equilibrium potential for Y is -50 mV.

If the membrane is equally permeable to both ions, what is the ion distribution inside versus outside the neuron?

Check all that apply

Question 6 options:

inside has more positive charges than outside

inside has less positive charges than outside

inside has more negative charges than outside

inside has less negative charges than outside

Save

Question 7 (1 point)

what does a voltmeter measure?

Question 7 options:

amount of charges inside a neuron

amount of positive charges on inside versus outside of neuron

positive charge distribution across membrane

relative charge distribution on inside and outside of neuron

negative charge distribution

Save

Question 8 (1 point)

Which ion channels are opened and closed during an action potential?

Question 8 options:

K+ leak channels

Na+ leak channels

voltage-gated channels

ligand-gated channels

permanently open Na+ and K+ channels

Save

Question 9 (1 point)

Which part of a neuron transmits signals to the next neuron?

Question 9 options:

soma

dendrites

axon

axon terminal

Save

Question 10 (1 point)

Which of the following is true about a resting neuron?

Question 10 options:

the neuron membrane is equally permeable to sodium and potassium

the neuron membrane is more permeable to sodium than potassium

the neuron membrane is less permeable to sodium than potassium

the neuron membrane is impermeable to both sodium and potassium

	50 mV
	-15 mV
	-70 mV
	15 mV
	0 mV
	90 mV
	-30 mV
	-20 mV

x oasis ser service x Girls Alone (5ocial x GAcsia Extractic x G What is the equilib x Cchegg study IGuic x Base C Danny sent you a x ouizzes XLS GP x O PA5 Sport Ce Secure I https uga view usgedu d2Vimsiquizzin start frame d2l?ou &dro; 0&qi; 15/3383&ofql-0;&dnib; 0 g/user/attempt/quiz eLearning Co mmons I P3 Ask me any Drsktop 2/22/2011 M25

Answer 1-- The correct answer is -30mV

Answer 2-- 70mV

Anser 3-- 70mV

Answer 4-- Membrane is permeable to that ion

Answer 5-- Somatic NS

Answer 6-- inside has more positive charges than outside

Answer 7-- Relative charge distibution on inside and outside of neuron

Answer 8-- voltage- gated channels

Answer 9-- soma

Answer 10-- the neuron membrane is less permeable to sodium than potassium