Biology - Movement in and out of cells Flashcards
(5 cards)
1
Q
Concentration gradient
A
the difference between the concentration in different areas
1
Q
Diffusion and extra info abt it
A
the net movement of particles from concentrated areas to less concentrated areas.
Passive process, no energy required
Happens in liquids and gases
2
Q
The larger the concentration gradient, _______________________________
A
the faster the rate of diffusion
3
Q
Osmosis
A
A special case of diffusion with water - net movement of water molecules across a partially permeable membrane from a region of HWC to a region of LWC
4
Q
Active transport
A
the movement of particles against a concentration gradient - requires energy
