The Importance of Complement Activation as an Innate Immune Defense

question 6

Multiple Choice

The importance of complement activation as an innate immune defense against infections is illustrated by:

• A) The evolution of complement avoidance strategies by many pathogens
• B) The large number of proteins involved in the complement pathway
• C) The large number of complement regulatory pathways expressed by the host
• D) The existence of three different mechanisms for initiating complement activation
• E) The ability of the membrane attack complex to lyse some pathogens

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Definitions:

Anorexia

An eating disorder characterized by an obsessive fear of gaining weight, leading to a refusal to eat enough food and, consequently, severe weight loss.

Irritability

A state of increased annoyance or touchiness, often as a symptom of stress or certain medical conditions.

Empirical Support

Evidence that is based on observation or experiment, supporting the effectiveness or validity of a concept or treatment.

Anorexia Nervosa

An eating disorder characterized by an obsessive fear of gaining weight, leading to severely restricted food intake and starvation in pursuit of thinness.