ConceptConceptDocsDocuments

CAIE A-Level Biology 12.2.13 Redox Indicator Respiration Investigations

Practise comparing yeast respiration with DCPIP or methylene blue by controlling volumes and conditions, timing decolourisation and interpreting shorter times as faster rates.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • measure time for a fixed redox-indicator colour endpoint under controlled conditions
  • vary temperature or substrate concentration while controlling yeast and indicator volumes
  • use reciprocal time or shorter decolourisation time to compare respiration rates

No Question Bank Yet

Questions will appear here when available.