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.

---

Definitions:

Incremental Cost

The additional cost incurred to produce one more unit of a good or service.

Opportunity Cost

The potential benefit that is missed out on when choosing one alternative over another.

Opportunity Costs

The cost of an alternative that must be foregone to pursue a certain action. Put another way, the benefits you could have received by taking an alternative action.

Make Total Cost

An approach to calculate the comprehensive cost of manufacturing a product, including raw materials, labor, and overheads.