Biology 9700 · AS & A Level · Structure of transport tissues

Structure of transport tissues — practice question

Which features are found in both companion cells and phloem sieve tube elements?

  • Aribosomes present; plasmodesmata not present
  • Bribosomes present; plasmodesmata present
  • Cribosomes not present; plasmodesmata present
  • Dribosomes not present; plasmodesmata not present

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