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STAPHYLOCOCCUS

Total soal: 15

Worksheet time: 8mins

Nama
Kelas
Tanggal
1.

Exotoxin Elaboration

a)

Impetigo

b)

Ritter disease

c)

Carbuncle

2.

COAGULASE test

a)

Differentiates Staphylococcus from Streptococcus

b)

Differentiates SAU from other Staphylococcus species

c)

Differentiates Micrococcus from Staphylococcus

d)

Differentiates Micrococcus & Rothia from Staphylococcus

3.

Modified Oxidase Test

a)

Differentiates Staphylococcus from Streptococcus

b)

Differentiates SAU from other Staphylococcus species

c)

Differentiates Micrococcus from Staphylococcus

d)

Differentiates Micrococcus & Rothia from Staphylococcus

4.

Novobiocin Susceptibility Test

a)

Differentiates Staphylococcus from Streptococcus

b)

Differentiates SAU from other Staphylococcus species

c)

Differentiates Micrococcus from Staphylococcus

d)

Differentiates S. saprophyticus from other CONS

5.

What is the proper flow of procedures in identification of Staphylococcus?

a)

  1. 1.Do direct Gram Staining on sample

2.Perform Coagulase test

3.Perform Catalase test

4.Culture

b)
  1. 1.Do direct Gram Staining on sample

  2. 2. Culture

  3. 3.Perform Catalase test

4.Perform Coagulase test

c)
  1. 1.Perform Catalase test

  2. 2.Perform Coagulase test

    3.Culture

d)
  1. 1.Culture

  2. 2.Perform Catalase test

  3. 3.Perform Coagulase test

6.

Focal suppuration

a)

Ritter disease

b)

Sty

c)

Impetigo

d)

Boils

7.

Protein A

a)

Enhance binding to host cells & prosthetics

b)

Binds to the Fc region of antibody (IgG)

c)

involves the activation of plasma coagulase-reacting factor (CRP), to produce the fibrin clot

8.

Staphylococcus epidermidis is able to cause diseases by its ability to form biofilms by way of cell surface & extracellular compounds.

These cell surface structures and extracellular substances promote adherence of bacteria to surfaces of prosthetic devices.

a)

Only 1 statement is TRUE

b)

Both statements are TRUE

c)

Both statements are FALSE

9.

DNAse test is done for the presumptive identification of S. aureus.

It could also be used to differentiate S. aureus from Micrococcus and Rothia.

a)

only 1 statement is true

b)

both statements are true

c)

both statements are false

10.

Gene that allows bacteria to be resistant to antibiotics such as methicillin, penicillin and other penicillin-like antibiotics

a)

RecA gene

b)

MecA gene

c)

16S Rrna

11.

Staphylococcal surface antigen that elicits production of IL-1 & opsonic Abs by monocytes.

a)

Protein A

b)

Capsule

c)

Peptidoglycan

12.

Virulence factor that is bound to the bacterial cell wall and reacts directly with fibrinogen

a)

Bound coagulase

b)

free coagulase

c)

catalase

13.

Which of the ff. hydrolyses & inactivates penicillin ?

a)

hyaluronidase

b)

beta lactamase

c)

DNAse

d)

staphylokinase

14.

All MRSA strains carry a mobile genetic element called staphylococcal cassette chromosome (SCC) which harbours the mecA gene .

a)


true

b)

false

15.

Confers resistance to β-lactam antibiotics.

a)

mecA gene

b)

staphylococcal cassette chromosome

c)

penicillin-binding protein 2a