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CAIE A-Level Biology 12.2.3 Pyruvate Entry into Mitochondria

Practise tracing pyruvate from cytoplasm into mitochondrial matrix when oxygen is available and linking oxygen's final-acceptor role to coenzyme reoxidation.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • trace pyruvate from cytoplasm across mitochondrial membranes into the matrix
  • identify oxygen availability as supporting continued aerobic pathway operation
  • connect oxygen as final electron acceptor with coenzyme reoxidation and ATP yield

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