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==Key Stage 4==
===Meaning===
[[File:PhloemCells.png|right|300px|thumb|A [[diagram]] showing several '''phloem cells''' in the centre with [[Companion Cell (Plant)|companion cells]]surrounding them.]]
'''Companion Cells''' are [[Plant Cell|plant cells]] that surround [[Phloem Cell|phloem cells]] to keep them [[alive]].
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f175 ''Companion cell, page 77, GCSE Biology; Student Book, Collins, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Companion cells, page 133, GCSE Biology, Pearson, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Companion cells, page 95, GCSE Combined Science, Pearson Edexcel '']