Which of the Following Most Accurately Describes How Foreign Substances

question 35

Multiple Choice

Which of the following most accurately describes how foreign substances can activate complement?

• A) Antibodies can bind to foreign antigens and activate complement through the classical pathway.
• B) Foreign substances can bind to spontaneously activated C3 and stabilize it.
• C) Foreign proteins bind to C1 and activate it.
• D) Foreign proteins are phagocytized by macrophages and directly activate complement.
• E) Both "Antibodies can bind to foreign antigens and activate complement through the classical pathway" and "Foreign substances can bind to spontaneously activated C3 and stabilize it" are correct.

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Definitions:

Independent Variable

The independent variable is the condition or factor that is manipulated by a researcher to determine its effect on the dependent variable.

Aggressive Behaviour

Actions or conduct that intends to cause harm or exert dominance over another individual.

Experimental Group

A group of subjects in an experiment who are exposed to the variable under study, allowing researchers to measure the effect of the variable on the group.

Descriptive/Correlational

A type of research method that involves observing and describing the behavior of a subject without influencing it in any way.