properties of stem cells Flashcards
Why is the term “stem cells” used for zygotes and early embryonic cells?
The term “stem cells” is used because these cells give rise to all the tissues in an adult organism, making them the foundation for all cell types in the body.
What makes stem cells significant in research and medicine?
Stem cells are significant due to their ability to divide repeatedly and their potential for use in therapeutic and regenerative medicine, such as tissue repair and organ regeneration.
Can stem cells divide indefinitely?
Yes, in theory, stem cells can divide an unlimited number of times, making them capable of continuous cell production.
What is an example of stem cells dividing repeatedly in the human body?
Skin stem cells divide repeatedly throughout life to replace lost or damaged skin cells.
What happens to the cells produced by the division of a stem cell?
The cells produced by stem cell division may either remain as stem cells or differentiate into specific specialised cells. If they differentiate, they are no longer considered stem cells.
What is the differentiation potential of stem cells?
Stem cells are either undifferentiated or partially differentiated, and they retain the ability to differentiate into various types of cells along different pathways depending on their environment.
What determines whether a stem cell remains undifferentiated or differentiates?
The microenvironment and signalling cues around a stem cell influence whether it remains undifferentiated or differentiates into a specific cell type.
