The Lactose Repressor

question 51

Multiple Choice

The lactose repressor

• A)is transcribed with the structural lac genes.
• B)is activated by binding lactose.
• C)is inactivated by binding lactose.
• D)requires lactose for its transcription.

---

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.