Flashcards in Gram positive bacteria Deck (16)
What colour do Gram positive bacteria stain?
Purple (crystal violet/iodine complex)
What are the two main classes of Gram positive bacteria?
What are the two main classes of Gram positive cocci?
How are staphylococci further distinguished?
Coagulase test; positive or negative
Name a type of coagulase positive bacteria and give its symptoms
-commensal in nose/groin
-boils/blood and food poisoning
-methicillin resistant = MRSA
Name a type of coagulase negative bacteria and give its symptoms
-pathogenic in presence of prosthetics/foreign bodies
How are streptococci further distinguished?
Haemolysis; alpha (partial)/beta (full)/non-haemolytic
What action does alpha-haemolytic bacteria have on blood agar?
Turns it green
What action does beta-haemolytic bacteria have on blood agar?
Turns it clear
Name a type of alpha-haemolytic bacteria and give its symptoms
Name a type of beta-haemolytic bacteria and give its symptoms
Strep. pyogenes - Lancefield group A
Name a type of non-haemolytic bacteria and give its symptoms
What are the two main classes of Gram positive bacilli?
Give the main class of anaerobic Gram positive bacilli
Name the three main type of clostridium