cell growth, cell control (elongation, differentiation, cell division, cancer) Flashcards
1
Q
what is cancer
A
uncontrolled cell division
2
Q
describe a tumor
A
mass of abnormal cells
3
Q
explain cell elongation and how it affects plants
A
cell elongation - where plant cells expands, making the cell bigger, resulting in the plant growing
4
Q
what is cell differentiation
A
where cells change to become specialised for its job
5
Q
how do animals grow? and does cell differentiation last forever?
A
animals grow by cell divison
cell differentiation in animals is lost at an early age - as once your an adult most cell division is for repair then growth
6
Q
what is the rate of cell division contrlled by
A
its controlled by the genes in the organisms dna
if these genes are changed it can lead to uncontrollable cell divison = mass of abnormal cells
