Why Are Action Potentials Usually Conducted in One Direction

question 62

Multiple Choice

Why are action potentials usually conducted in one direction?

• A) Ions can flow along the axon in only one direction.
• B) The brief refractory period prevents reopening of voltage-gated Na+ channels.
• C) The axon hillock has a higher membrane potential than the terminals of the axon.
• D) Voltage-gated channels for both Na+ and K+ open in only one direction

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Definitions:

Oligopoly

An oligopoly is a market structure characterized by a small number of firms that control the majority of the market share, leading to limited competition. These firms may engage in competitive or cooperative behaviors.

Monopolistic Competition

A market structure where many firms sell products that are similar but not identical, allowing for some degree of market power and product differentiation.

Pure Monopoly

A market structure characterized by a single seller that produces a unique product or service with no close substitutes and high barriers to entry for potential competitors.

Demand Factors

Variables that influence the desire and ability of consumers to purchase goods or services, including income levels, tastes, and the price of related goods.