A. 0.05 volts
B. -50 mv
C. 0.07 volts
D. both a & b
Related Mcqs:
- The major factors involved in changing resting membrane potential to active membrane potential include:
A. Na+ and K+ ion movement
B. Membrane potential
C. Reversal of charges
D. All of the above - A membrane potential of_________volts exits when a neuron is not conducting a nerve impulse:
A. 0.05
B. 0.07
C. 0.05 to 0.07
D. 1 - The electrical potential that exists across a cell membrane is known as:
A. Membrane potential
B. Electrical potential
C. Resting potential
D. Action potential - The major factors that are involved in resting membrane potential include:
A. Sodium and potassium ions
B. Negative organic ion
C. Leakage of K+ions from neurons
D. All of the above - The potential during which the inner membrane surface becomes more positive than the outside is called:
A. Resting membrane potential
B. Threshold stimulus
C. Active membrane potential
D. None of these - The action potential ‘jumps’ along an axon. The gaps in a myelinated axon that the action potential ‘jumps’ to are called the ____________?
A. Broca’s area
B. Nodes of Ranvier
C. terminal buttons
D. Wernicke’s area - The concentration one of the following ion is tenfold higher on the outside of the membrane than inside:
A. Sodium
B. Potassium
C. Organic ions
D. All of these - One of the following ions is twenty times more concentrated inside than outside the membrane surface:
A. Sodium
B. Potassium
C. Organic ions
D. None of these - A wave of electrochemical changes, which travels along the length of the neuron involving chemical reactions and movement of ions across the cell membrane, is:
A. Membrane potential
B. Resting membrane potential
C. Nerve impulse
D. Electron pump - When a neuron is stimulated, the cell membrane at the point of stimulation undergoes momentary reversal in change called:
A. Action potential
B. Resting potential
C. Threshold potential
D. None of these
