Micro - bugs

Question 1

Aerobic, Gr +, Cocci, Catalase +, Coag +

Answer 1

Staphylococcus aureus

Question 2

Aerobic, Gr +, Cocci, Catalase +, grows yellow on mannitol

Answer 2

Staphylococcus aureus

Question 3

Aerobic, Gr +, Cocci, Catalase +, Resist Novobiocin and Bacitracin

Answer 3

Staphylococcus saprophyticus

Question 4

Aerobic, Gr +, Cocci, Catalase +, grows pink on mannitol, susceptible to Novobiocin

Answer 4

Staphylococcus epidermidis

Question 5

Aerobic, Gr +, Cocci, Catalase +, susceptible to Bacitracin/Ox +

Answer 5

Micrococcus spp.

Question 6

Aerobic, Gr +, Cocci, Catalase -, B-hemolytic, Bacitracin susceptible

Answer 6

Streptococcus pyrogenes (group A)

Question 7

Aerobic, Gr +, Cocci, Catalase -, B-hemolytic, Bacitracin resistant, CAMP makes arrowhead

Answer 7

Streptococcus agalactiae (group B)

Question 8

Aerobic, Gr +, Cocci, Catalase -, gamma hemolysis, Bile esculin forms black precipitate, grows on 6.5% NaCl

Answer 8

Enterococcus spp.