Question

15. What are the kind of cells that can target and process pathogen-associated molecular patterns (PAMPs)?
    1. Regulatory T cells
    2. Platelets
    3. Dendritic cells
    4. Erythrocytes

Answer 1

Option C- Dendritic cells.

These molecules can be referred to as small molecular motifs conserved within a class of microbes.

pathogen-associated molecular patterns (PAMPs) are small molecular motifs which are conserved within a class of microbes.PAMPs are recognized by toll-like receptors & pattern recognition receptors.

*Toll-like receptors are a class of proteins which helps in the innate immune system. They are single-pass membrane-spanning receptors which are expressed on sentinel cells like

1.macrophages

2.Dendritic cells,

PAMPs Thus activate innate immune responses which results in the protection of the host from infection.

Example for PAMPs-Bacterial lipopolysaccharides , endotoxins which are found on the cell membranes of gram-ve bacteria