CELL CULTURES AND CHARACTERISTICS QUIZ

-60 to -78°C

-20 to -30°C

-30 to -48°C

-48 to -58°C

special nitrogen source

pathogenic properties

none of these

special carbon source

0.5% or less

1.5-20%

>10%

>10%but<20%

All of these

Preservation by overlaying cultures with mineral oil

Preservation by lyophilization

Periodic transfer to fresh media

gram (+)ve intestinal bacteria to grow

none of these

gram (-)ve intestinal bacteria to grow

aquatic bacteria to grow

none of these

coulter counter

hemocytometer

petroff-hausser counting chamber

Species of microorganism is in question

Microorganism causes serious symptoms in humans

Genes from the microorganism cannot be amplified by PCR

Microorganism cannot be isolated in pure culture

Gas in specimen

Foul odour

Presence of sulphur granules

All of these

Vacomycin

None of these

Trimethoprim

Polymyxin

selective medium

enrichment medium

enriched medium

differential medium