Phloem: Sieve Tube Elements: Composed primarily of parenchyma cells. Companion Cells: Composed primarily of parenchyma cells. Xylem: Vessel Elements: Composed primarily of sclerenchyma cells. Tracheids: Composed primarily of sclerenchyma cells. If you have any other question feel free to ask. Thanks for watching. keep sharing.
@@BioScholar971 vessel of xylem is dead like tracheids, then how vessel is made of parenchyma not sclerenchyma? My Next question is that in some books it is mentioned that sieve tube is made of sieve cells and for vessel it is vessel members. Why is this so?
Vessel elements are non-living cells or dead at maturity. However, they are derived from living cells that undergo a process of differentiation and cell death as they mature. So, you can say xylem vessels are made of sclerenchyma cells, which are lignified and dead. If you go into further detail, both Xylem and phloem initially derived from Procambial cells. I have also edited the previous response; I hope this clears up any confusion.
Thanks for the suggestion! I'll be uploading a detailed video on sclerenchyma soon. In the meantime, if you have any specific questions, feel free to ask. I'm here to help!
Which tissue forms phloem's sieve tube and companion cell ; and xylem's vessel and tracheid.
Plz reply
Phloem:
Sieve Tube Elements: Composed primarily of parenchyma cells.
Companion Cells: Composed primarily of parenchyma cells.
Xylem:
Vessel Elements: Composed primarily of sclerenchyma cells.
Tracheids: Composed primarily of sclerenchyma cells.
If you have any other question feel free to ask. Thanks for watching. keep sharing.
@@BioScholar971 thanks a lot, its a great help. 😊
@@BioScholar971 vessel of xylem is dead like tracheids, then how vessel is made of parenchyma not sclerenchyma?
My Next question is that in some books it is mentioned that sieve tube is made of sieve cells and for vessel it is vessel members. Why is this so?
Vessel elements are non-living cells or dead at maturity. However, they are derived from living cells that undergo a process of differentiation and cell death as they mature.
So, you can say xylem vessels are made of sclerenchyma cells, which are lignified and dead.
If you go into further detail, both Xylem and phloem initially derived from Procambial cells.
I have also edited the previous response; I hope this clears up any confusion.
@@BioScholar971 yes. Thankyou😊
Elaborate schlencyma tissues more
Thanks for the suggestion! I'll be uploading a detailed video on sclerenchyma soon. In the meantime, if you have any specific questions, feel free to ask. I'm here to help!