The electrical potential that exists across a cell membrane is known as:

Related Mcqs:

1. 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

2. The charge that exists across the nerve cell membrane is result of differing:

   A. amounts of DNA and RNA
   B. types of neurotransmitters on either side of the nerve cell membrane
   C. types of neurons inside and outside the nerve cell membrane.
   D. concentrations of ions on either side of the nerve cell membrane

3. 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

4. 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

5. Active membrane potential is:

   A. 0.05 volts
   B. -50 mv
   C. 0.07 volts
   D. both a & b

6. 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

7. 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

8. 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

9. The action potential cannot jump from one neuron to the next in line, rather the message is transmitted across snaps in the form of chemical messenger called:

   A. Neurotransmitters
   B. Neuro relaxers
   C. Neuro messengers
   D. Synaptic transmitters

10. What describes the correct sequence of electrical activity as it passes through a single nerve cell?

    A. axon, dendrite, soma, vesicle
    B. soma, cell body. Dendrite, vesicle
    C. soma, vesicle, dendrite, axon
    D. dendrite, soma, axon, vesicle