Why Are Phosphorylation and Dephosphorylation Reactions Commonly Used to Regulate

question 36

Multiple Choice

Why are phosphorylation and dephosphorylation reactions commonly used to regulate signal transduction pathways?

• A)Phosphate groups are efficient second messengers
• B)Protein kinases and phosphatases are abundant in most cells
• C)The hydrolysis of bound GTP generates GDP,which can change the activity of proteins bound to GDP
• D)The addition or removal of a phosphate group can expose or hide potential binding sites in proteins or change protein activity

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Definitions:

Representation Election

This is a procedure where employees vote on whether or not they wish for union representation, sometimes leading to the establishment of a new union presence.

Unionization

The process by which workers form or join a labor union to collectively negotiate with their employer for improved conditions, wages, and benefits.

Salting

A tactic used by unions where union workers get hired at non-union workplaces in order to organize and unionize the employees within.

Union Organizing Tactic

Strategies and methods used by labor unions to encourage and assist workers in forming or joining a union to represent their interests.