Gram Positive Organisms

Question 1

bacteria that grow both in the presence of oxygen and in absence of oxygen

Answer 1

facultative

Question 2

gram positive aerobic organisms are mostly this

Answer 2

facultative

Question 3

catalase enzyme production in these bacterial genus (2)

Answer 3

staphylococci and micrococci

Question 4

coagulase enzyme production in what bacteria

Answer 4

staphylococcus aureus

Question 5

oxidase enzyme production in what bacterial genus (1)

Answer 5

micrococci

Question 6

phenotypic tests to distinguish gram positive cocci in chains (7)

Answer 6

-catalase
-hemolysis on blood agar
-PYR enzyme
-CAMP test
-cell wall antigen test
-Optochin disc / P-disc
-bile solubility

Question 7

beta hemolytic bacteria (2)

Answer 7

streptococcus pyogenes and agalactiae

Question 8

causes strep throat

Answer 8

streptococcus pyogenes

Question 9

causes neonatal meningitis

Answer 9

streptococcus agalactiae

Question 10

non-hemolytic bacteria with no visible effect

Answer 10

gamma hemolysis

Question 11

gamma hemolytic bacteria genus

Answer 11

enterococcus

Question 12

alpha hemolytic bacteria (2)

Answer 12

streptococcus viridans and pneumoniae

Question 13

pyrrolidone arylamidase enzyme presence in which bacteria (2)

Answer 13

streptococcus pyogenes (group A strep) and enterococcus

Question 14

formation of a substance (CAMP factor) that enlarges the area of hemolysis formed by beta hemolysin from staph aureus

Answer 14

CAMP test

Question 15

identification of cell wall antigens unique to each streptococcus species (A, B, C, D, F, G) with a latex labeled with antibody for the cell wall antigen

Answer 15

cell wall antigen testing

Question 16

used on alpha colonies of strep, inhibits growth of streptococcus pneumoniae

Answer 16

Optochin disc / p-disc

Question 17

bile soluble bacteria

Answer 17

streptococcus pneumoniae