The Second Messengers Derived from a Phospholipid Membrane Lipid

question 144

Multiple Choice

The second messengers derived from a phospholipid membrane lipid

• A) include inositol trisphospate (IP₃) and diacylglycerol (DAG).
• B) inhibit protein kinases.
• C) close Ca²⁺ channels.
• D) are formed from phosphatidyl choline.
• E) are formed from a phospholipid in the endoplasmic reticulum.

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Definitions:

Condenser

An electrical charge storage device also known as a capacitor. In an A/C circuit, it is a heat exchanger located in the vehicle airflow and subject to the ram air. Cooling of the refrigerant causes it to condense to a liquid state. This results in the refrigerant changing to a liquid state.

Thermodynamics

A branch of physics that deals with the behavior of heat; its principles are used to explain the operation of heat exchangers and A/C operation.

Behavior of Heat

The study of how heat energy transfers between materials or systems and its effects.

State Change

A transition of a system or substance from one physical or thermodynamic state to another.