what is the purpose of blood agar plate?
Blood Agar Plates (BAP) (Atlas p. 49). Blood agar is actually a couple of related media, all of which are rich formulations containing peptones, yeast extracts, liver or heart extracts (depending on the medium), and blood.The blood is usually sheep's red blood cells (RBC), though horses and other species may be used.ne such pathogen that BAP can detect is Streptococcus pyogenes which causes a number of diseases including strep throat, rheumatic fever, and necrotizing fascitis. Purpose: blood agar plates allow for the growth of fastidious organisms and the differentiation of three hemolytic activities.