active transport Flashcards
1
Q
when does active transport occur?
A
it occurs when molecules are moved across the cell membrane from a low area of concentration to a high area of concentration using transport proteins.
2
Q
why does it require an energy supply?
A
the movement is against the concetration gradient so the transport proteins require an energy supply.
3
Q
example of active transport:
A
minerals into the root hair cell / glucose in the gut
