What Will Be the Immediate Action of Allergen When It

question 68

Multiple Choice

What will be the immediate action of allergen when it enters the body for a second time?

• A)degranulation
• B)bonding of allergen to adjacent IgE binding sites on mast cells and basophils
• C)binding of IgE by the Fc region to mast cells and basophils
• D)histamine acts on smooth muscle
• E)prostaglandins cause vasodilation and increased vascular permeability

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Definitions:

River and Harbor Act

Legislation focused on improving and maintaining American rivers and harbors for navigation, flood control, and water supply.

Discharge Permit

An authorization, typically issued by a government agency, allowing the release of pollutants into the environment under specified conditions.

Army Corps of Engineers

A federal agency under the Department of Defense in the United States, responsible for public engineering, design, and construction management, including improvements to natural resources and infrastructure.

Clean Air Act

A wide-ranging federal legislation in the United States designed to control emissions from both stationary and mobile sources in order to safeguard public health and the environment.