ConceptConceptDocsDocuments

CAIE A-Level Biology 12.2.5 Carbon Compounds in the Krebs Cycle

Practise tracking two-carbon acetyl joining four-carbon oxaloacetate to form citrate, followed by two decarboxylations and regeneration of oxaloacetate.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • combine two-carbon acetyl with four-carbon oxaloacetate to form six-carbon citrate
  • track two carbon-dioxide losses while intermediates return to a four-carbon compound
  • explain oxaloacetate regeneration as allowing repeated turns of the cycle

No Question Bank Yet

Questions will appear here when available.