LIVING BEINGS. CELL. OPTIONAL WORK

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Stem cells are undifferentiated biological cells that can differentiate into specialized cells and can divide (through mitosis) to produce more stem cells. <br /> There are two types of stem cells:<br /> 1-Embryonic stem cells: grown in the laboratory from cells found in the early embryo<br /> <br /> Tissue stem cells: found in our bodies all our lives<br /> <br /> 2-Tissue stem cells: found in our bodies all our lives<br /> <br /> Induced pluripotent stem cells, or ‘reprogrammed’ stem cells: similar to embryonic stem cells but made from adult specialised cells using a laboratory technique discovered in 2006

Stem cells are mother cells that have the potential to become any type of cell in the body. One of the main characteristics of stem cells is their ability to self-renew or multiply while maintaining the potential to develop into other types of cells. Stem cells can become cells of the blood, heart, bones, skin, muscles, brain etc. There are different sources of stem cells but all types of stem cells have the same capacity to develop into multiple types of cells.<br /> <br /> The types of stem cells are:<br /> <br /> Not all stem cells come from an early embryo. In fact, we have stem cells in our bodies all our lives. One way to think about stem cells is to divide them into three categories:<br /> <br /> Embryonic stem cells: grown in the laboratory from cells found in the early embryo<br /> Tissue stem cells: found in our bodies all our lives<br /> Induced pluripotent stem cells, or ‘reprogrammed’ stem cells: similar to embryonic stem cells but made from adult specialised cells using a laboratory technique discovered in 2006.

1.A stem cell is a cell that has the ability to divide (self replicate) for indefinite periods—often throughout the life of the organism. Under the right conditions, or given the right signals, stem cells can give rise (differentiate) to the many different cell types that make up the organism. That is, stem cells have the potential to develop into mature cells that have characteristic shapes and specialized functions, such as heart cells, skin cells, or nerve cells.<br /> <br /> 2.Embryonic stem cells: grown in the laboratory from cells found in the early embryo<br /> Tissue stem cells: found in our bodies all our lives<br /> Induced pluripotent stem cells, or ‘reprogrammed’ stem cells: similar to embryonic stem cells but made from adult specialised cells using a laboratory technique discovered in 2006