Refer to the Two Figures Below

question 148

Multiple Choice

Refer to the two figures below. The receptor portions of two signal transduction pathways are shown.The two mechanisms underlying these pathways are similar in that they both involve

• A) gated ion channels.
• B) activating a kinase as part of the signaling process.
• C) a protein binding to the same signal molecule.
• D) a protein conformational change in response to a signal molecule.
• E) an ion serving as a second messenger.

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Definitions:

Volt-Amperes-Reactive

A unit of measure for reactive power in an electrical system, indicating the non-working power in an AC circuit.

Reactive Power

The component of electrical power that does not perform any work, typified by its presence in AC circuits and measured in Volt-Amps Reactive (VAR).

Inductive Reactance

The opposition that inductance offers to alternating current, dependent on the frequency of the current.

Resistance

A measurement of the opposition to the flow of electric current, causing electrical energy to be converted into heat.