The Complement System Can Be Activated By

question 81

Multiple Choice

The complement system can be activated by:

• A) the binding of complement protein 1 to the complement-binding site on the antibody molecule.
• B) the binding of complement protein 3 to bacteria or viruses in the presence of properdin.
• C) nonspecific immune mechanisms.
• D) all of the above.

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Definitions:

Excise Tax

A tax levied on the sale of specific goods and services, such as tobacco, alcohol, and fuel.

Levied

Imposed or collected (usually a tax, fine, or other charge) by authority or force.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, indicating the sensitivity of demand to price changes.

Luxury Tax

A tax imposed on expensive goods and services considered to be non-essential or luxurious.