Homeostasis Flashcards
1
Q
What are the four types of transport across membranes?
A
Direct free fusion
Uniporter
Co-transporter
Antiporter
2
Q
Net transport is described as being…
A
Down-gradient (so it reduces differences in concentration)
3
Q
Making and maintaining order requires…
A
Energy
4
Q
Name a use of ATP
A
Expelling Na+ from cells and brining K+ in to create an electro-chemical gradient
5
Q
How do co-transporters work?
A
Parasitise gradient allowing solute to move uphill with Na+ running downhill as a result
