Question

What do innate receptors or pattern recognition receptors (PRRs) primarily recognize on pathogens?

A. Antigen receptors
B. Complement activation
C. Fc receptors
D. Membrane immunoglobulin
E. Pathogen-associated molecular patterns (PAMPs)

Answer 1

Innate receptors or pattern recognition receptors (PRRs) primarily recognize Pathogen-associated molecular patterns (PAMPs) on pathogens.

Step-by-step explanation:

Innate receptors or pattern recognition receptors (PRRs) primarily recognize Pathogen-associated molecular patterns (PAMPs) on pathogens.

Pathogen-associated molecular patterns (PAMPs) are characteristic features of pathogens and differ from molecules on host cells. These patterns are recognized by membrane-bound receptors called pattern recognition receptors (PRRs) found on phagocytic cells like macrophages and dendritic cells.

Examples of PAMPs include bacterial cell wall components, bacterial flagellar proteins, and other pathogen-specific molecules.