Which of the Following Are TRUE Regarding the Alternate Pathway

question 22

Multiple Choice

Which of the following are TRUE regarding the alternate pathway of complement activation?

• A)Factor D has a similar function to C1qrs, and Factor B has a similar function to C2.
• B)The activation surface of an organism serves to spontaneously cleave C3 into C3a and C3b.
• C)Unlike the classic complement pathway, the alternate pathway is independent of calcium and magnesium.
• D)The composition of the C3 convertase is a Factor B/Properdin complex.

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Definitions:

Negative Externalities

Costs suffered by a third party as a result of an economic transaction, such as pollution caused by industry, which are not reflected in the market prices.

Positive Externalities

Benefits that result from a transaction or activity and affect others not directly involved in the transaction or activity.

Marginal Social Cost

The total cost society bears for the production of an additional unit of a product, including both private and external costs.

Marginal Private Cost

The additional cost borne by a producer for producing one extra unit of a good or service.