continuous sampling
What continuous sampling means in Biology GCSE, as defined for AQA, OCR.
Definitions of continuous sampling
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Reference: OCR
Withdrawing aliquots at fixed intervals, for example every 30 seconds, and adding them to reagent on a spotting tile to follow a process such as starch digestion.
Testing repeatedly at fixed intervals rather than testing only at the start and end, so you can identify the time when starch first disappears.
Topics that use continuous sampling
- The human digestive system (AQA GCSE)
- Testing for biological molecules (OCR GCSE)
Related terms
- end point
- Absorption and transport
- active site
- Active site and substrate binding
- Amylase
- Anabolic and catabolic reactions
- Apparatus and measurement skills
- Benedict’s test for reducing sugars
Using continuous sampling in the exam
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