Question

question 22 1 pts a membrane that exhibits a membrane potential is said to be unipolarized. multipolarized. polarized. bipolarized. question 23 1 pts the mechanisms that produce and maintain the resting membrane potential do so by producing a slight excess of negative ions on the outer surface of the plasma membrane. reduction of ions on the outer surface of the plasma membrane. slight excess of positive ions on the outer surface of the plasma membrane. balanced distribution of positive and negative ions between the outer and inner surface of the plasma membrane. question 24 1 pts in a myelinated neuron, the impulse can travel under the myelin between nodes of ranvier. false true

Explanation:

• Question 22: A membrane with a membrane - potential is polarized. This is a fundamental concept in cell physiology where a difference in electrical charge across the membrane exists.
• Question 23: The resting membrane potential is maintained by a slight excess of positive ions on the outer surface of the plasma membrane. This charge separation is crucial for the function of excitable cells.
• Question 24: In a myelinated neuron, the impulse jumps from node to node (saltatory conduction) and does not travel under the myelin. So the statement is false.

Answer:

Question 22: C. polarized.
Question 23: C. slight excess of positive ions on the outer surface of the plasma membrane.
Question 24: A. False