Transcript OSMOSIS/DIFFUSION - American Academy

OSMOSIS/DIFFUSION
CHAPTER 4
Agenda
1. Warmup
2. Notes
3. Group
4. Start
work (act out)
on homework
WORD
DIFFUSION
OSMOSIS
EXOCYTOSIS
ENDOCYTOSIS
ACTIVE TRANSPORT
PASSIVE TRANSPORT
hypertonic
hypotonic
SOLUTE
SOLVENT
DEFINITION
PICTURE
WORD
DEFINITION
PICTURE
OSMOSIS
The diffusion of water through a semi-permeable
membrane
DIFFUSION
the movement of particles from a high concentration to a
low concentration
EXOCYTOSIS
When a cell uses a vesicle to move a particle from within
the cell to outside the cell
ENDOCYTOSIS
when a cell surrounds a large particle and encloses it
ACTIVE TRANSPORT
When a cell needs to use energy to move particles through
channels
PASSIVE TRANSPORT
Particles move through the cell membrane without using
energy from the cell
hypertonic
Greater concentration of solute outside of cell than inside
causing shrinking
hypotonic
Greater concentration of solute inside the cell than ousside
that could lead to bursting
SOLUTE
Product you dissolve in the solvent (the lesser of the two)
i.e. salt
SOLVENT
The product that is doing the dissolving (more)
i.e. water
Diffusion
Example of Osmosis/Diffusion
Examples

exocytosis and endocytosis

https://www.youtube.com/watch?v=DuDmvlbpjHQ

osmosis and diffusion

https://www.youtube.com/watch?v=9QCxTf0QfTo

Hypertonic vs hypotonic
In partners-write on your whiteboard
Think of examples of
osmosis/diffusion in your world
ENDOCYTOSIS/EXOCYTOSIS