Marlene experienced inflammation following her injury, an innate immune response. What other innate or non-specific immune responses fight infection?

A. Natural killer cells lyse body cells displaying abnormal plasma membrane proteins.
B. Antimicrobial proteins like interferon and complement protect host cells from viral invasion and lyse invading bacterial cells, respectively.
C. Phagocytosis by neutrophils and macrophages removes invading bacteria.
D. Fever inhibits bacterial growth and also promotes reactions needed for wound repair.
E. All of these choices represent innate immune responses.

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GinnyAnswer GinnyAnswer · Answer 1 · 2024-07-23T08:52:18-04:00

Innate immune responses include natural killer cells, antimicrobial proteins, phagocytosis, and fever as defense mechanisms.

Innate immune responses involve a range of defenses that act non-specifically against pathogens. Some examples include:

Natural killer cells: These cells lyse body cells displaying abnormal proteins.
Antimicrobial proteins: Interferon and complement protect host cells from viral invasion and destroy bacterial cells.
Phagocytosis: Neutrophils and macrophages engulf and remove invading bacteria.
Fever: It inhibits bacterial growth and promotes wound repair.

These mechanisms collectively represent innate immune responses.

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