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Do mature cells of phloem tissue in angiosperms have nuclei?
Mature phloem cells in angiosperms, specifically the sieve tube elements, lose their nuclei as they differentiate. This adaptation allows for more efficient transport of sugars and nutrients. However, companion cells, which are associated with sieve tube elements, retain their nuclei and play a crucial role in maintaining the function of the sieve tubes. Thus, while mature sieve tube elements lack nuclei, the companion cells do have them.
What is the term used to describe cells that have nuclei?
Cells that have nuclei are eukaryotic.
Are nuclei of different cells similar in size?
Nuclei can vary in size depending on the type of cell. Generally, the nuclei of cells within the same species are similar in size, but there can be variations between different types of cells. Some cells, like muscle cells and some liver cells, may have multiple nuclei.
What did Robert Virchow observe about cell division?
cells come from other cells
Are there cells in the human body that lack nuclei if so which?
Red blood cells (erythrocytes) do not have nuclei.
Are the companion cell without nuclei?
It does not consist of nuclei
Do all cells have nuclei?
Not all cells have nuclei. All eukaryotic cells have nuclei and all prokaryotic cells do not.
What are cells that do not have a nuclei called?
all cells have a nuclei
What is the term used to describe cells that have nuclei?
Cells that have nuclei are eukaryotic.
Do all mammalian cells have nuclei?
No. Mammalian red blood cells do not have nuclei.
Are nuclei of different cells similar in size?
Nuclei can vary in size depending on the type of cell. Generally, the nuclei of cells within the same species are similar in size, but there can be variations between different types of cells. Some cells, like muscle cells and some liver cells, may have multiple nuclei.
Where in the embryo are the instructions located for how to build organ?
In the nuclei of the cells.
What did Robert Virchow observe about cell division?
cells come from other cells
What are pleomorphic nuclei?
Pleomorphic nuclei are irregularly shaped nuclei that vary in size and structure within a population of cells. This variation can be seen in cancer cells, where the nuclei may exhibit different shapes and sizes compared to normal cells. Pleomorphic nuclei are considered a feature of malignancy when observed in pathology samples.
Are there cells in the human body that lack nuclei if so which?
Red blood cells (erythrocytes) do not have nuclei.
How many cells are there in a nucleus?
Nuclei do not contain cells, cells contain nuclei (normally, one nucleus per cell).
Which cells lack a nuclei?
prokaryotic cells
