Streptococcus spp. and Enterococci

Question 1

reaction

Answer 1

gram positive

Question 2

morphology

Answer 2

cocci

Question 3

arrangement

Answer 3

in pairs or chains

Question 4

catalase

Answer 4

negative

Question 5

oxidase

Answer 5

negative

Question 6

fastidious organisms

Answer 6

true

Question 7

classification based on hemolytic pattern

Answer 7

smith and brown

Question 8

classification based on growth

Answer 8

academic or bergley’s

Question 9

viridans

Answer 9

growth at 45C

Question 10

enterococci

Answer 10

growth at both 10C and 45C

Question 11

pyogenic

Answer 11

growth at neither

Question 12

lactic groups

Answer 12

growth at 10C

Question 13

incomplete hemolysis

Answer 13

alpha hemolytic

Question 14

greenish zone of hemolysis

Answer 14

alpha hemolysis

Question 15

complete hemolysis

Answer 15

beta hemolytic

Question 16

clear zone of hemolysis

Answer 16

beta hemolytic

Question 17

small area of intact RBC around colony and wider zone of complete hemolysis

Answer 17

alpha prime hemolysis

Question 18

no hemolysis

Answer 18

gamma hemolytic

Question 19

most aggressive pathogen

Answer 19

S. pyogenes

Question 20

surface antigen

Answer 20

M-protein

Question 21

Resists phagocytosis

Answer 21

M-protein

Question 22

adherence to the mucosal cell

Answer 22

M-protein

Question 23

adherence to epithelial cell

Answer 23

Protein-F (fibronectin binding protein)

Question 24

prevents phagocytosis by neutrophils or macrophages

Answer 24

hyaluronic acid capsule

Question 25

responsible for deep tissue infection

Answer 25

hyaluronidase

Question 26

spreading factor

Answer 26

hyaluronidase