Physiology Flashcards
1
Q
what factors affect solute diffusion across cell membranes?
p.s. there are seven
A
- concentration difference
- membrane permeability of the substance
- membrane voltage gradients
- molecular weight of diffusing substance
- diffusion distance
- membrane surface area
- temperature
2
Q
what conditions are necessary for osmosis?
A
solute concentration gradient
membrane permeable to water, not the solute
simple diffusion and aquaporins (water channels)
3
Q
define osmolarity
A
4
Q
define tonicity
A
5
Q
define osmotic pressure
A
6
Q
what are the characteristics of carrier mediated transport?
A
7
Q
what is facilitated diffusion?
A
8
Q
what is primary active transport?
A
9
Q
what is secondary active transport?
A
10
Q
what is the process of endocytosis?
A
11
Q
what is the process of exocytosis?
A
