Biology A-Level
Specific colour changes as evidence
What Specific colour changes as evidence means in Biology A-Level, as defined for OCR.
Definition of Specific colour changes as evidence
Check what you remember
Read the wording for your board, then hide it and explain Specific colour changes as evidence in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The colour change, not the reagent alone, is the evidence, so the specific observable change must be named for each test.
Topics that use Specific colour changes as evidence
- Use of apparatus and techniques (OCR A-Level)
Related terms
- Accuracy of observation transferred to paper
- Accurate reading of scales and menisci
- Annotation as recorded evidence
- Apparatus selection
- Calibration of the eyepiece graticule
- Clarity and convention in biological drawing
- Colorimetry and calibration
- Computer modelling
Using Specific colour changes as evidence in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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