Gram Positive Cocci

Question 1

All staph are

Answer 1

Gram positive
Non motile
Catalase positive

Question 2

S. Aureus is mainly present in

Answer 2

Nares

Question 3

S. Epedermitdis is present in

Answer 3

Epidermis

Question 4

S. Saprophyticus

Answer 4

Survives on decaying organic material
Perinuem region
Urogenital tract

Question 5

S. Aureus is

Answer 5

Coagulase positive

Question 6

S. Epidermitidis is

Answer 6

Coagulase negative

Question 7

S. Saprophyticus is

Answer 7

Coagulase negative

Question 8

S. Aureus when put on mannitol salt agar what it produces

Answer 8

It produces golden yellow colonies

Question 9

S. Epidermitidis and S. Saprophyticus is

Answer 9

Coagulase negative
Catalase positive and
urease positive

Question 10

S. Epidermitidis and S. Saprophyticus

Answer 10

S epidermitidis is Novobiocin sensitive while S. Saprophyticus is not novobiocin resistant

Question 11

S. Aureus cause disease cause disease by

Answer 11

Producing biofilms
Exotoxins

Question 12

Staphylococcus aureus is

Answer 12

A part of our skin flora

Question 13

Which exotoxins are released by Staphylococcus Aureus

Answer 13

Leukocidin
TSST-1
Exfoliatin toxin
Enterotoxin
Hemolysin

Question 14

Pharangitis plus rash is called

Answer 14

Scarlet fever

Question 15

Streptococcus pyogenes is killed by

Answer 15

High glucose conc

Question 16

Erysipelas

Answer 16

Affect skin only

Question 17

Cellulitis affect

Answer 17

Skin plus subcutaneous tissue

Question 18

Necrotizing fasciitis

Answer 18

Affects skin plus subcutaneous tissue plus muscle plus fat.

Question 19

What is streptococcal gangrene

Answer 19

Bacterimia then toximia then shock then multi organ failure then death