stem cells

Created by

chiamaka 🎀

Cards (17)

what happens after an ovum (egg cell) is fertilised
it goes through mitosis to later develop
what happens after mitosis to the ovum
it then forms a ball of cells called an embryo
what do embryos slowly begin to form
specialised cells (such as nerve cells and muscle cells)
what do you call it when immature cells start to mature and have specific functions
differentiation
have cells in the early embryo differentiated
no
what is one of the things that an early embryo is capable of
differentiating into any type of cell
what is a stem cell
an undifferentiated cell that can produce (give rise) more cells of the same type and can differentiate to form other types of cells
what is an example of a body part with stem cells
bone marrow - found in the blood
what can adult cells not do, in terms of differentiation
adult cells (matured cells) can't differentiate into any other types of cells unlike in embryos
where are stem cells also found
plants and adults
where are stem cells not found in
stem cells aren't in every tissue of the body: e.g. cornea of eye, hairless parts of the skin, lungs (some parts), teeth (in adults), bones (in some cases)
how can stem cells be used in medicine
for therapeutic cloning and bone marrow transplants for example
what is therapeutic cloning
when an embryo is produced with the same genes as the patient
what happens when the stem cells from the embryo is in the patient or person
the stem cells can then differentiate to replace cells which have stopped working correctly
what tissue do roots and buds contain in plants
they contain meristem tissue
what do the cells in the meristem tissue do in terms of differentiating
they can differentiate into any types of plant tissue at any point in the life of the plant
what can meristem tissue be used for to help plants
they can be used to clone a rare plant to stop it from going extinct or produce a cloned crop plants (e.g. ones resistant to disease) for farmers