Midterms (gram positive)

Question 1

Catalase Positive

Answer 1

Staphylococcus

Question 2

Catalase Negative

Answer 2

Streptococcus

Question 3

Enzyme that able to decompose hydrogen peroxide into water and oxygen

Answer 3

Catalase Test

Question 4

Creates clot

Answer 4

Coagulase test

Question 5

Coagulase positive

Answer 5

Staphylococcus aureus

Question 6

Coagulase negative

Answer 6

Staphylococcus saprophyticus
Staphylococcus epidermidis

Question 7

An enzyme that allows the conversion of fibrinogen to fibrin

Answer 7

Coagulase

Question 8

Cause clotting

Answer 8

Fibrin

Question 9

An antibacterial agent

Answer 9

Novobiocin Test

Question 10

Zone where there’s no growth

Answer 10

Zone of Inhibition

Question 11

Novobiocin-resistant

Answer 11

Zone of inhibition is less than 16 mm

Question 12

Novobiocin-sensitive

Answer 12

Zone of inhibition is greater than 6 mm

Question 13

Novobiocin resistant

Answer 13

Staphylococcus saprophyticus

Question 14

Novobiocin sensitive

Answer 14

Staphylococcus epidermidis

Question 15

Differential Media

Answer 15

Mannitol Salt Agar

Question 16

Culture media where we can differentiate family and species

Answer 16

Mannitol Salt Agar

Question 17

Presence of Golden yellow pigment indicates the presence of

Answer 17

Staphylococcus aureus

Question 18

Porcelain white pigment

Answer 18

Staphylococcus epidermidis

Question 19

No pigment

Answer 19

Staphylococcus saprophyticus

Question 20

Staphylococcus

Answer 20

Round shape bacteria that are in CLUSTERS “grape like”

Question 21

Staphylococcus aureus
Virulence Factors

Answer 21

Protein A
Coagulase
Hemolysin
Leukocidins
Penicillinase

Question 22

aka beta-lactamase

Answer 22

Penicillinase

Question 23

enzyme that allows S. aureus to resist the antibacterial property of PCN or beta-lactam antibiotics

Answer 23

Penicillinase

Question 24

MRSA

Answer 24

Methicillin Resistant Staphylococcus Aureus

Question 25

next step to MRSA

Answer 25

Vancomycin

Question 26

VRSA

Answer 26

Vancomycin Resistant Staphylococcus Aureus

Question 27

next step to VRSA

Answer 27

Linezolid

Question 28

Diseases caused by EXOTOXIN release

Answer 28

Gastroenteritis Toxic shock syndrome (TSS) Scalded skin syndrome (SSS)

Question 29

Toxin that cause SSS

Answer 29

Exfoliatin

Question 30

manifested as food poisoning → nausea and vomiting

Answer 30

Gastroenteritis

Question 31

TSS toxin 1 – toxin responsible

Answer 31

Toxic shock syndrome (TSS)

Question 32

aka Ritler’s Disease or Lyells Disease

Answer 32

Scalded Skin Syndrome

Question 33

common to newborns

Answer 33

Scalded Skin Syndrome

Question 34

Exposed dermis Death due to sepsis

Answer 34

Scalded Skin Syndrome

Question 35

Disease caused by DIRECT ORGAN INFECTION

Answer 35

1. Pneumonia - LUNGS 2. Meningitis - BRAIN 3. Osteomyelitis - BONES 4. Acute Endocarditis - HEART 5. Septic arthritis - JOINTS 6. Skin infections

Question 36

Skin infections:

Answer 36

Impetigo - Honey crusted lesions Cellulitis Boils/Local Skin Abscesses- pigsa Furuncle- bigger furuncle Carbuncle- untreated boils