Why transport systems are needed in uni and multi cellular organisms Flashcards
1
Q
Why all living organism need system:
A
Need a variety of substances to live e.g. water minerals and sugar
Also need to get rid of waste substances
2
Q
Unicellular-
A
So small so short distance for substance to diffuse across
Quick because of this
Diffuse in and out
3
Q
Multicellular-
A
Diffusion would be too slow because substances have to travel large distances to reach every single cell
Need transport systems to move substances to and from cells quickly