Question

C₃a and C₅a are involved in ?

1) inflammation
2) interferon production
3) properdin activation
4) attraction of phagocytes
5) inflammation AND attraction of phagocytes

Answer 1

C₃a and C₅a complement proteins are involved in inflammation and attraction of phagocytes. They diffuse outward from the site of activation and attract phagocytes to the site of infection. This process also triggers an inflammatory response.

Step-by-step explanation:

The C₃a and C₅a complement proteins are involved in the process of inflammation and attraction of phagocytes. When C₃ is split into C₃a and C₃b, C₃a diffuses outward from the site of activation and attracts phagocytes to the site of infection. This helps in the process of engulfing and destroying pathogens.

The release of these complement proteins also triggers an inflammatory response, which involves localized redness, swelling, heat, and pain.