Containment
Observe closed plates in the teaching setting; do not open or smell cultures.
MEDIVEERSETHE PRACTICAL HUBLOOK CLOSELY / UNDERSTAND CLEARLY
Culture plate recognition
Recognise a culture plate and describe colonies without over-identifying an organism.
REFERENCE GALLERY1 / 1 reference
1
Agar medium
The solid growth medium within the plate.
Zoom in, then drag to inspect. Keyboard: + / − to zoom, arrows to pan, 0 to reset. Tap the numbered markers to explore parts.
culture plate — reference view
Image: Author credited at source · Source / original · Public domainResized and converted to WebP; original colours retained.
Identify and explain
Appropriate culture conditions permit growth that can be characterised and tested in a controlled laboratory.
- Shallow lidded plate
- Solid medium surface
- Discrete colonies in the reference
Description
Record colony appearance only when supported by the actual specimen.
Identification
Confirm with validated laboratory methods, not colony colour alone.
At the viva table
Try answering aloud, then open the suggested answer. Examiner questions vary.
01 / Is one colony colour species-specific?
No. Many organisms and media can produce similar appearances.
02 / Why keep a culture closed?
To maintain containment and reduce contamination or exposure.
03 / What is an isolated colony?
A discrete growth area used in a controlled laboratory workflow.
04 / Is a culture result independent of sampling?
No. Collection site, contamination and transport affect interpretation.