Key term for AQA GCSE Biology, used in Plant Systems.
Cells located next to sieve tube elements that contain numerous mitochondria to provide the energy needed for active transport.
Companion cells appears in AQA GCSE Biology revision content for Biological Organisation, especially Plant Systems and Plant Organ Systems.
Biological Organisation
Plant Systems • Plant Organ Systems
Biological Organisation
Plant Systems • Plant Organ Systems
Cell Biology
Cell Structure • Cell Specialisation
Biological Organisation
Plant Systems • Plant Tissues
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