If One Impales a Neuron with Two Different Intracellular Microelectrodes

question 49

Multiple Choice

If one impales a neuron with two different intracellular microelectrodes, one to measure membrane potential and a second to pass brief hyperpolarizing current pulses into the cell, why does the size of the measured changes in membrane potential caused by the current pulses decrease when transmitter binds to an ionotropic receptor?

• A) The ionotropic receptor inhibits a voltage-gated sodium channel.
• B) The ionotropic receptor inhibits a voltage-gated potassium channel.
• C) The input resistance of the cell does not change when ionotropic receptor channels open.
• D) The input resistance of the cell decreases when ionotropic receptor channels open.
• E) The input resistance of the cell increases when ionotropic receptor channels open.

Differentiate between natural monopolies and competitive markets.

Recognize the motivations behind government regulation and anti-trust laws.

Identify the economic implications of monopolies and market dominance.

Examine the role and impact of regulatory agencies in industrial regulation.

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Definitions:

Independent Agencies

Governmental organizations that operate independently of the executive branch and are tasked with administering laws and regulations in specific areas.

Board of Commissioners

A governing body elected or appointed to oversee the administration and governance of certain jurisdictions or organizations.

Political Party

An organized group of people with similar political aims and opinions, seeking to influence public policy by getting its candidates elected to public office.

Enabling Statutes

Laws that provide the legal framework and authority for government agencies or bodies to implement regulations and actions.