1
BIOS
BIOS242/ BIOS 242 L AB PRACTICUM:
FUNDAMENTALS OF MICROBIOLOGY | QS & AS|
GRADE A| 100% CORRECT (VERIFIED ANSWERS)-
CHAMBERLAIN (NEW 2025/ 2026 UPDATE)
WHY ARE ONLY STERILE PIPETTE TIPS USED IN THE LAB - ANS ✓to avoid
contamination of the sample
WHAT IS THE VOLUME RANGE OF THE P1000 - ANS ✓100-1000ml
DIPLOCOCCI - ANS ✓
SPIROCHETE - ANS ✓
VIBRIO - ANS ✓
BACILLUS - ANS ✓
WHAT DOES HEPA STAND FOR IN HEPA FILTER? - ANS ✓high efficiency
particulate air
WHICH OF THESE FACTORS APPLY TO CLASS III MODE? - ANS ✓provides a
physical barrier between user and microbes
BIOS242/ BIOS
, 2
BIOS
FOR ANTHRAX WE USE CONTAINMENT LEVEL 3. WHICH FACILITIES WE
MUST USE IF WE HAVE AN EBOLA SAMPLE? - ANS ✓BSL 4
WHY IS IT IMPORTANT THAT A NEGATIVE AIR PRESSURE IS MAINTAINED
INSIDE THE BIOSAFETY LEVEL 3 LAB? - ANS ✓it minimizes the chance of a
microorganism from leaving the lab
THE PPE IS PUT ON AND TAKEN OFF IN A SPECIFIC AREA. WHICH
STATEMENT IS CORRECT? - ANS ✓overshoes are put on in the anteroom and
taken off in the lab
WHICH SETTING IS BEST TO VIEW THE MOVING BACTERIA AND THE
BACTERIAL SHAPES? - ANS ✓darkfield mode
MATCH THE GRAM STAINING STEPS WITH THE DYE USED - ANS ✓1. Primary
stain- crystal violet
2. Iodine- purple
3. Alcohol- gram+ (purple) gram- (colorless)
4. Safranin- gram+ (purple) gram- (pink)
WHY DO BACTERIA MOVE - ANS ✓all options are correct
BIOS242/ BIOS
BIOS
BIOS242/ BIOS 242 L AB PRACTICUM:
FUNDAMENTALS OF MICROBIOLOGY | QS & AS|
GRADE A| 100% CORRECT (VERIFIED ANSWERS)-
CHAMBERLAIN (NEW 2025/ 2026 UPDATE)
WHY ARE ONLY STERILE PIPETTE TIPS USED IN THE LAB - ANS ✓to avoid
contamination of the sample
WHAT IS THE VOLUME RANGE OF THE P1000 - ANS ✓100-1000ml
DIPLOCOCCI - ANS ✓
SPIROCHETE - ANS ✓
VIBRIO - ANS ✓
BACILLUS - ANS ✓
WHAT DOES HEPA STAND FOR IN HEPA FILTER? - ANS ✓high efficiency
particulate air
WHICH OF THESE FACTORS APPLY TO CLASS III MODE? - ANS ✓provides a
physical barrier between user and microbes
BIOS242/ BIOS
, 2
BIOS
FOR ANTHRAX WE USE CONTAINMENT LEVEL 3. WHICH FACILITIES WE
MUST USE IF WE HAVE AN EBOLA SAMPLE? - ANS ✓BSL 4
WHY IS IT IMPORTANT THAT A NEGATIVE AIR PRESSURE IS MAINTAINED
INSIDE THE BIOSAFETY LEVEL 3 LAB? - ANS ✓it minimizes the chance of a
microorganism from leaving the lab
THE PPE IS PUT ON AND TAKEN OFF IN A SPECIFIC AREA. WHICH
STATEMENT IS CORRECT? - ANS ✓overshoes are put on in the anteroom and
taken off in the lab
WHICH SETTING IS BEST TO VIEW THE MOVING BACTERIA AND THE
BACTERIAL SHAPES? - ANS ✓darkfield mode
MATCH THE GRAM STAINING STEPS WITH THE DYE USED - ANS ✓1. Primary
stain- crystal violet
2. Iodine- purple
3. Alcohol- gram+ (purple) gram- (colorless)
4. Safranin- gram+ (purple) gram- (pink)
WHY DO BACTERIA MOVE - ANS ✓all options are correct
BIOS242/ BIOS
