During a Humoral Immune Response to a Newly Encountered Bacterial

question 13

Multiple Choice

During a humoral immune response to a newly encountered bacterial infection,B cells are first stimulated to proliferate and then secrete antibodies specific for the bacterium.The antibodies may then bind to the bacteria and facilitate ingestion of the microbes by phagocytic cells.In what phase of the humoral immune response does the binding of secreted antibodies to bacteria occur?

• A)Recognition phase
• B)Activation phase
• C)Effector phase
• D)Homeostatic phase
• E)Memory phase

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Definitions:

Toga

A loose, draped outer garment worn by the citizens of ancient Rome.

Genus

A class of items that share common characteristics; in biology, a way to group species with similar characteristics.

Species

A collection of organisms that share similar characteristics and can interbreed or exchange genetic material.

Vegetable

A plant or part of a plant used as food, typically referring to the leaf, stem, root, or flower.