The Phloem.
Seive tube of the phloem
Seive cells have a nucleus.Seive tube elements do not have a nucleus.
They are prokariyotic cells.Also erithrocytes and seive tube elements do not have.
Prokariyotes lack a nucleus.Mamalian erythrocytes,seive tube elements also lack.
There are cells without mitochondria.Some are erithrocytes,seive tube elements etc
Perhaps Enormusly Networks Engage Sever
Some cells like seive tube elements lack.Other cells have a nucleus.
Of course they have. Mitocondria pesent in every living plant cell except seive tube elements
Typical eukariyotes have a nucleus.But red blood cells of mammals,seive tube elements lack a nucleus.
Yes,they are in both.They are almost in every eukariyotic cell accept RBC,phloem seive tube cells etc
In plant anatomy, sieve tube elements, are a specialized type of elongated cell in the phloem tissue of flowering plants. The ends of these cells connect with other sieve tube members, making up the sieve tube, whose main function is transport of carbohydrates in the plant.
A sieve tube is a type of long, narrow cell found in the phloem of vascular plants. They are responsible for transporting sugars and other nutrients throughout the plant. Sieve tubes are connected end-to-end to form sieve tube elements that allow for the efficient movement of substances.