Medical Science desperately Rushes In.
Stem cells are cells that are able to divide continuously without specializing. These kind of cells are undifferentiated biological cells.
yes, cells grow to an enlarged size and divide into two small cells (which each enlarge and divide as well). but the larger cells get, the more difficult it is for them to function and operate, so they remain within certain size boundaries, getting large enough to divide and halving, large enough to divide and halving.
Both fuel cells and primary cells are devices that convert chemical energy into electrical energy. The main difference is that primary cells use stored chemical energy in the form of a non-rechargeable chemical reaction, while fuel cells continuously receive fuel and an oxidizing agent to generate electricity through a controlled chemical reaction.
False. Lungs do not store oxygen. Oxygen is continuously delivered to the bloodstream and circulation by the lungs, where it is then transported to cells throughout the body.
One of the major aspects of life is self replication, or reproduction. If cells didn't divide, then populations of organisms would not form, and evolution would be impossible. The more proximate cause is that as cells grow and ingest food, there is a limit to how big they can become before the cell wall no longer supports the cytoplasm. At or before this point, the cell must divide or it will lyse (split open) and die.
Stem cells are cells that are able to divide continuously without specializing. These kind of cells are undifferentiated biological cells.
These regions, where cells continuously divide, are where plant growth originates.
These regions, where cells continuously divide, are where plant growth originates.
Labile cells (the kinds of cells that can divide throughout their lifetime) normally do so within the organ they constitute. Some examples of labile cells are skin cells, cells of the gastrointestinal tract, and blood cells; however, blood cells divide in the bone marrow and lymphocytes divide in the lymph nodes. Other kinds of cells in the body are either stable cells (that do not normally divide--this includes nerve cells) and permanent cells (that do not have the ability to divide.)
Cancer.
The zone of cell division is a region in plant roots where cells actively divide to allow for growth and root elongation. This region contains meristematic cells that continuously divide and give rise to new cells for growth and development.
Most cells do not continuously divide. These cells enter the G0 phase of the cell cycle after dividing and do not begin diving again until stimulated to do so. Growth factors, nutrients, etc. are required to make these start dividing again. When these cells are needed, the appropriate growth factors will be introduced, and then they will begin dividing again. Some cells do continuously divide, such as epithelial (skin) cells. The cells that keep on dividing, even though they are not supposed to, are cancer cells. They eat up all your nutrients and form tumors etc.
Cancer is a condition characterized by cells dividing out of control
All cells are undergoing mitosis continuously to replace, cells that are dying continuously.
The basal layer of the epidermis contains stem cells that continuously divide and differentiate to produce new epidermal cells. These stem cells are responsible for regenerating the skin's outer layer.
the cells which must help for a human's growth undergo it, in other words most do
Labile cells are constantly dividing and regenerating, such as skin epithelial cells. Permanent cells do not normally regenerate, such as neurons. Stable cells have a low rate of division but can regenerate under certain conditions, such as liver cells.