Key Concpets On Biology-Transporting Substances Flashcards
1
Q
How do smells (odor) spread?
A
By diffusion moving down a concentration gradient spreading gas particles
2
Q
The steeper the concentration gradient?
A
The faster diffusion occurs
3
Q
Osmosis?
A
A membrane at which allows some molecules through it and not others is partially permeable (semi permeable)
Or
The process by which molecules of a solvent (able to dissolve other substances) tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one
4
Q
Diffusion def?
A
The spreading of something (particles for instance)more widely
