Stem cells Flashcards
When sperm fertilise the egg it begins to divide by mitosis to from new cells what is the name of the cell ?
Undifferentiated
Define undifferentiated
The cells have not specified to become tissues yet
embryonic stem cell
These are used to grow all the organs in the body . They can develop into any other type of blood cell
Adult stem cell
Are rare but are found in certain places to repair damaged tissue. Adult stem cells can only form the type of cell they are surrounded by.
Plant stem cell
Found in parts called meristems - These growing points found throughout the plant they remain active throughout the life of the plant to repair damage and for growth of new tissues
Name two uses of stem cells
Leukemia and therapeutic cloning
What is leukaemia
Cancer of the bone marrow which leads to loss of blood cells
What is therapeutic cloning ?
The cloning of cells
What advantage will these newly grown organs have when being transplanted ?
Your body wont reject them
Stem cells have been injected into the brain to repair damage caused by conditions such as ?
Dementia
Alzheimer’s
How does a bone marrow work ?
Marrow is removed using a needle and put into the recipients bone
What does bone marrow contain ?
Stem cells which can differentiate into healthy white blood cless to cure leukaemia
