Biology A-Level
Closed (batch) culture
What Closed (batch) culture means in Biology A-Level, as defined for OCR.
Definition of Closed (batch) culture
Check what you remember
Read the wording for your board, then hide it and explain Closed (batch) culture in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A culture containing a fixed volume of nutrient medium with no additions or removals, so nutrients fall and waste accumulates.
Topics that use Closed (batch) culture
- Cloning and biotechnology (OCR A-Level)
Related terms
- Advantages and limitations of immobilisation
- Advantages of cloning plants artificially
- Artificial embryo twinning
- aseptic technique
- Batch versus continuous fermentation
- Bunsen flame
- Controlled incubation
- Exponential (log) phase
Using Closed (batch) culture in the exam
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