Demonstrate the growth of leaf yeast on malt/starch agar (LC 2026) (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
Kingdom yeast belongs to
Kingdom yeast belongs to
Fungi
Optimal temp. for leaf yeast growth
Optimal temp. for leaf yeast growth
30°C
Appearance of leaf yeast colonies
Appearance of leaf yeast colonies
Shiny pink colonies
What leaf yeast presence indicates
What leaf yeast presence indicates
Good air quality
Why no fungi on top leaf surface
Why no fungi on top leaf surface
Waterproof waxy cuticle
Purpose of second empty agar plate
Purpose of second empty agar plate
Control
Initial incubation temp. and time
Initial incubation temp. and time
30°C for 24 hours
Time after turning plates upside down
Time after turning plates upside down
3 days
Why turn plates upside down
Why turn plates upside down
To reduce condensation formation
Definition of sterile environment
Definition of sterile environment
Free from all microorganisms
Result in control plate
Result in control plate
No evidence of any colonies
Result in experiment plate
Result in experiment plate
Pink shiny colonies
Type of tree leaf used in expt.
Type of tree leaf used in expt.
Ash tree
What is nutrient agar
What is nutrient agar
Solid, jelly-like form of nutrient medium
How to dispose of plates after expt.
How to dispose of plates after expt.
Soak in disinfectant