Grow a Bacteria Culture (Leaving Cert Agricultural Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
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Practise the cards
10 cards from this deck
What does nutrient agar provide?
What does nutrient agar provide?
Food for bacterial growth
What do methylated spirits sterilise?
What do methylated spirits sterilise?
The inoculating loop
Incubation temperature for bacteria culture
Incubation temperature for bacteria culture
Incubation time for bacteria culture
Incubation time for bacteria culture
24 hours
Loop cooling time after sterilising
Loop cooling time after sterilising
30 seconds
Angle to open petri dish during inoculation
Angle to open petri dish during inoculation
angle
Purpose of control plate (Plate B)
Purpose of control plate (Plate B)
Verify growth came from soil sample, not contamination
Why are plates placed upside-down in incubator?
Why are plates placed upside-down in incubator?
Prevents condensation dripping onto agar surface
Bacterial colonies appearance
Bacterial colonies appearance
Small, round, often coloured spots
Fungal colonies appearance
Fungal colonies appearance
Larger, fuzzy or cotton-like texture