Biology GCSE
end point
What end point means in Biology GCSE, as defined for AQA, OCR.
Definitions of end point
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Reference: OCR
The stage of starch digestion when the sampled mixture no longer turns iodine blue-black and remains yellow-brown.
The time when starch first disappears for that pH, shown by iodine no longer turning blue-black.
Topics that use end point
- The human digestive system (AQA GCSE)
- Testing for biological molecules (OCR GCSE)
Related terms
- continuous sampling
- 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 end point in the exam
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