Science, asked by aayush9434, 10 months ago

write 5 points about sievetubes and companion cells​

Answers

Answered by ShreyaVirat
3

Hey mate...

Good evening...

SIEVE TUBES

  • They are slender,tube like structure..
  • They are composed of elongated thin walled cells places end to end...
  • Walls of sieve tubes are perforated...
  • Their nucleus degenerates at maturity...
  • Cutoplasm persist in mature cells...

COMPANION CELLS

  • They are found within the phloem of flowering plants...
  • Usually clesely associated with a sieve element...
  • Takes part in loading and unloading sugar into the sieve element..
  • They contain mitochondria
  • Regulate the activity of the adjacent elements ..

Hope it helps...!!!

Have a great day ahead...^_^

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