B2.1.6 Stem Cells Flashcards
1
Q
What are the two main types of stem cell
A
Embryonic and adult
2
Q
Define stem cells
A
Undifferentiated cells that can divide by mitosis and can develop into any type of specialised cell
3
Q
Embryonic cells
A
Found in embryos
Divide by mitosis to produce all cells needed to make an organism
Have the ability to differentiate into all cell types
4
Q
Adult stem cells
A
Found in various body tissues like brain
Can differentiate into some types of cell but not as many as embryonic
5
Q
Where are stem cells found in plant
A
Meristems
6
Q
How are stem cells in meristems different to normal plant cells
A
Small
Very thin walls
Small vacuoles
No chloroplasts
7
Q
Can differentiated plant cells divide
A
No cause their cell walls are thick and rigid
