A Toxin That Binds Specifically to Voltage-Gated Sodium Channels in Axons

question 26

Multiple Choice

A toxin that binds specifically to voltage-gated sodium channels in axons would be expected to

• A) prevent the hyperpolarization phase of the action potential.
• B) prevent the depolarization phase of the action potential.
• C) prevent graded potentials.
• D) increase the release of neurotransmitter molecules.
• E) have most of its effects on the dendritic region of a neuron.

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Definitions:

Perfect Price Discrimination

Perfect price discrimination occurs when a seller charges each buyer their maximum willingness to pay, extracting all consumer surplus.

Total Profits

The sum of earnings from a business operation, after all expenses have been deducted from total revenue.

Price-discriminating Monopolist

A monopolist that charges different prices to different consumers or groups of consumers for the same product, not based on cost differences.

Market

Any structure that allows buyers and sellers to exchange any type of goods, services, and information.