3. Which of the following statements are TRUE about Toll-ike receptors (TLRs)? a

Question

3. Which of the following statements are TRUE about Toll-ike receptors (TLRs)? a. They may be found as membrane receptors on pathogens b. They may be found as membrane receptors in the endosomal membrane of cells c. They may be found as soluble receptors in the cytosol of cells d. They can react to every possible structural detail of microorganisms. e. a and b 4. Which of the following is an example of intrinsic immunity? a. natural killer cells b. anti-microbial peptides in skin c antibodies d. plasma cells e. CD8 T cells

Explanation / Answer

Toll like receptors are the part of innate immune system and they are found on the endosomal membrane of the sentinel cells such as macrophage and dendritic cells. These cells recognize only conserved domains of microorganisms. Here b option is correct.

Intrinsic immunity is newly discovered defense system where cells are producing antiviral proteins/peptide to halt the replication process of viruses. Correct answer is b.

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