m8 selected biochemical test

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1
Biochemical test is produced because diff. microbes produce diff. enzymes
  • true
  • false
2
CATALASE TEST

A-1st stment true,2nd stment false
B-1st stment false, 2nd stment true
C-both stment is true
D-both stment is false

1. Place a drop of 3% H2O2 to a glass slide and get a loopful of bacterial colony from culture and mix.
2. Catalase activity is indicated by change of color from yellow to blue.
  • a
  • b
  • c
  • d
3
COAGULASE

A-1st stment true,2nd stment false
B-1st stment false, 2nd stment true
C-both stment is true
D-both stment is false

1. Drop H2O2 on a clear glass slide and prepare a heavy, even suspension of unknown Enterobacter.
2. Place a drop of reconstituted coagulase plasma opposite to the drop of bacterial suspension. Thoroughly mix together.
  • a
  • c
  • d
4
COAGULASE

A-1st stment true,2nd stment false
B-1st stment false, 2nd stment true
C-both stment is true
D-both stment is false

3. Title the slide back and forth, observing for the formation of granular precipitate or white clumps.
Observe10 seconds for clotting of the mixture,
  • a
  • b
  • c
  • d
5
OXIDASE

A-1st stment true,2nd stment false
B-1st stment false, 2nd stment true
C-both stment is true
D-both stment is false

1. To a sterile test tube, place a drop of Kovac’s reagent and get a loopful of bacterial colony from your culture and mix.
2. Observe for bubbling.
  • a
  • b
  • c
  • d
6
OXIDASE

Which statment is correct?

3. Observe for lavender to dark purple result

3. Observe for red to pinkish result
  • 1st
  • 2nd
7
WASTA MANAGEMENT

Disinfect with 10% hypochlorite. Reuse after drying. Flame until it becomes red hot before using.
  • COTTON BALL PENCIL SHAVINGS
  • PIPETTES/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DISPOSABLE GLOVES AND MASK
  • DISPOSABLE INOCULATING LOOP AND NEEDLE
  • PREPARED USED CULTURE MEDIUM
  • CULTURE OF E.COLI OF AND OF S.AUREUS
8
WASTE MANAGEMENT

Disinfect with 10% hypochlorite(at least one hour); Reuse until dry.
  • COTTON BALL PENCIL SHAVINGS
  • PIPETTES/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DIPOSABLE GLOVES AND MASK
  • DISPOSABLE INOCULATING LOOP AND NEEDLE
  • PREPARED USED CULTURE MEDIUM
  • CULTURE OF E.COLI AND S. AUREUS
9
WASTE MANAGEMENT

Disinfect in lysol; place in standard yellow plastic bag (labeled infectious waste). thorw innthe infectious waste bin
  • COTTON BALL/PENCIL SHAVINGS
  • PIPETTE/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DISPOSABLE inoculating loop and needle
  • DISPOSABLE INOCULATIONG LOOP AND NEEDLE
  • PREPARED USED CULTURE MEDIUM
  • CULTURE OF E.COLI AND S.AUREUS
10
WASTE MANAGEMENT

Dispose in a plastic bag container, throw in the infectious waste bin
  • COTTON BALL/PENCIL SHAVING
  • PIPETTE/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DISPOSABLE GLOVES AND MASK
  • DISPOASBLE INOCULATING LOOP AND NEEDLE
  • PREPARED USED CULTURE MEDIUM
  • CULTURE OF E.COLI AND S.AUREUS
11
WASTE MANAGEMENT

Disinfect by burning the tips and Dispos in a plastic bag container, throw in the infectious waste bin
  • COTTON BALL/PENCIL SHAVINGS
  • PIPETTE/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DISPOSABLE GLOVES AND MASK
  • DISPOSABLE INOCULATING LOOP AND NEEDLE
  • PREPARED USED CULTURE MEDIUM
  • CULTURE E.COLI AND S.AUREUS
12
WASTE MANAGEMENT

Disinfect in Lysol(at least 2 hours); place the culture in standard yellow plastic bag(labeled infectious waste), throw in the infectious waste bin
  • COTTON BALL/PENCIL SHAVINGS
  • PIPETTE/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DISPOSABLE GLOVES AND MASK
  • DISPOSABLE INOCULATING LOOP AND NEEDLE
  • PREPARED USED IN CULTURE MEDIUM
  • CULTURE E.COLI AND S.AUREUS
13
WASTE MANAGEMENT

Disinfect in Lysol(at least 2hrs); place the culture in standard yellow plastic bag(labeled infectious waste), throw in the infectious waste bin
  • COTTON BALL/PENCIL SHAVINGS
  • PIPETTES/DROPPERS
  • WET COTTON BALL/USED THROAT SWAB APPLICATOR/USED TONGUE DEPRESSOR
  • DISPOSABLE GLOVES AND MASK
  • DISPOSABLE INOCULATING LOOP AND NEEDLE
  • PREPARED USED CULTURE MEDIUM
  • CULTURE OF E.COLI AND S.AUREUS
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