cellular differentiation Flashcards
(13 cards)
what’s a feature of embryonic cells
pluripotent so can become all types of cells
what’s an ethical issue with use of embryonic stem cells
embryo could develop into human being
what is a meristem
group of undifferentiated cells in plants
how are stem cells used in research and therapy
-provide information on cell processes e.g. growth
- repair damaged organs + tissues e.g. corneal transplants
- used as model cells for drug testing
what’s the meaning of the term differentiate
process by which a cell develops more specialised functions
what’s a feature of differentiated cell
only expresses the genes that produce proteins needed for that particular cell
adult (tissue) stem cells are multi potent which means…
they can produce a limited number of cell types e.g. blood stem cells
what is a stem cell
unspecialised somatic cell in animals
what are two properties of stem cells
- can self-renew
-can differentiate into specialised cells
name 2 types of stem cells
-embryonic
-tissue/ adult
potentially stem cells could be used to treat….by….
-parkinson’s disease }
-alzheimer’s disease} by being directed to differentiate into cells to replace damaged tissue
-multiple sclerosis }
what’s the function of adult (tissue) stem cells in vivo
growth, repair and renewal of damaged cells or tissue
two locations of adult stem cells
-bone marrow
-skin
