Amplification Steps in the Complement Pathways Occur

question 28

Multiple Choice

Amplification steps in the complement pathways occur

• A)in the classical pathway with C1 cleaving multiple molecules of C4 and multiple C2 for every C1 and C4; in the alternative pathway with the C3b of other pathways becoming C3 convertase; and then the C3b becoming part of a C5 convertase
• B)in all pathways with all the C3 convertases making multiple C3a +C3b
• C)with C9 polymerization
• D)all of the above
• E)A and B only

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Definitions:

Free Radical

Highly reactive atoms or molecules with unpaired electrons, involved in a variety of chemical processes including polymerization and combustion.

Haloalkane

A class of organic compounds where one or more hydrogen atoms in an alkane (saturated hydrocarbon) are replaced with halogen atoms (such as chlorine, bromine, or iodine).

R or S Description

A system for describing the configuration of chiral centers in molecules, indicating the spatial arrangement of atoms around the center.

CFC

Chlorofluorocarbon, a class of compounds used as refrigerants, solvents, and propellants in aerosols, contributing to ozone layer depletion when released into the atmosphere.