Xylem cells mature and harden and become so rigid that water can't diffuse into the cell. The cell dries and dies..
The mature red blood cell lacks a nucleus, and so is unable to reproduce.
prokaryotic cell =)
Animal cells do not have cell walls, whereas plant cells have cell walls made of cellulose. Additionally, animal cells typically have a round or irregular shape, while plant cells have a rigid rectangular shape. Plant cells contain chloroplasts for photosynthesis, while animal cells do not.
Plant cells
The DNA in a plant cell is located in the nucleus.
The mature red blood cell lacks a nucleus, and so is unable to reproduce.
A bacteria lacks a nucleus. It only has genetic material sitting in the middle of the cell, not inside a nucleus.
prokaryotic cell =)
prokaryotic cell =)
No. The nucleus is the part of the cell that holds the DNA. Plant cells have a nucleus, but a nucleus by itself is not a cell.
When a bacteria cell lacks a nucleus (like most bacteria do), it is said to be a prokaryotic cell.
Prokaryote
Most do, some don't. A mammalian red blood cell lacks a nucleus.
Animal cells do not have cell walls, whereas plant cells have cell walls made of cellulose. Additionally, animal cells typically have a round or irregular shape, while plant cells have a rigid rectangular shape. Plant cells contain chloroplasts for photosynthesis, while animal cells do not.
Platelets, A fragment of a cell, lacks a nucleus
Prokaryote.
viruses...