Molecular Motion in Cells Flashcards
1
Q
Molecule
A
2 or more atoms chemically bonded together.
2
Q
Semi-permeable
A
things pass through based on size.
3
Q
Things that influence speed
A
1) Temperature
2) Molecule size/amount
3) state of matter
4
Q
Diffusion definition
A
Movement of molecules from an area of HIGH concentration to LOW concentration.
- requires no energy
- follows gradient, until equilibruim
5
Q
Osmosis definition
A
Diffusion of water molecules.
- requires no energy
- follows gradient
6
Q
Active Transport definition
A
The movement of molecules against gradient (Low-High)
- requires energy
7
Q
Diffusion arrow
A
solid arrow
8
Q
Osmosis arrow
A
wavy arrow
9
Q
Active Transport arrow
A
Dashed arrow
