quick question (1 Viewer)

[aiz]

the difference between diffusion/osmosis is:

diffusion: high > low concentration
osmosis: high > low concentration through a membrane

am i right? teacher said something different so i'm just confirming.

thanks!

 

[zingerburger]

Osmosis is a type of diffusion mostly concerned with water through a *semi-permeable* membrane from high to low concentration.

 

[Buiboi]

osmosis and diffusion are both passive transport (meaning there is no expenditure of energy involved0, so in otherwords they cross a concentration gradient, being from high concentration to low concentration, not going against the gradiet.

osmosis refers to the transport of water across a semi-permeable membrane. only water

diffusion is the transport of the actual substance across the semi permeable membrane, weather it'd be proteins or wateva, the wall selectively choose which substances to pass through

so osmosis and diffusion both involve transport across a membrane except one transfers only water whereas the other transports the substance

 

[xiao1985]

ditto above two.

 

[kloudsurfer]

To add to what has been said...

Osmosis is the diffusion of water across a semi-permeable membrane.

 

[Buiboi]

i said that !:burn:

 

[Survivor39]

"Semi-permeable" or "selectively permeable" can both be used when describing the membrane. "Selectively permeable" is a better choice though.