cells Flashcards
1
Q
define a cell
A
basic unit of structure and function of a living thing
this is called cell theory
2
Q
what do u call an organism with only one cell
A
unicellular
3
Q
what do you call an organism with more than one cell
A
multicellular
like humans
4
Q
how small is a cell
A
about 20 micrometres wide
1mm = 1000 um
can only be seen with a microscope
5
Q
whats the difference between a light microscope and a electron microscope
A
light microscope magnify a specimen up to about 1500 times whereas an electron microscope can magnify up to 1 million times
6
Q
define an organelle
A
any of a number of organised/specialised structures within a living cell
