Osmosis is the movement of water, it follows the rule that water will move from a dilute solution to a concentrated solution.
Active transport is molecules being moved from an area of low concentration to an area of high concentration energy is needed to make this happen hence 'active'
to a area of high to low
ReplyDeleteThrough osmosis, you have to remember across a partially permeable membrane I think
ReplyDeleteyeah thats right, you need to have that to get marks
DeleteOsmosis: A special type of diffusion where only wáter moves acroos a partially permeable membrane from an área of high concentration of wáter to an área of lower concentration of wáter down the conentration gradient. An example of a partially permeable membrane is a cell membrane.
DeleteOsmosis: A special type of diffusion where only wáter moves acroos a partially permeable membrane from an área of high concentration of wáter to an área of lower concentration of wáter down the conentration gradient. An example of a partially permeable membrane is a cell membrane.
Deletean*
ReplyDeleteY and S is right, osmosis is across a partially permeable membrane, but useful notes anyway ;)
ReplyDeleteDon't forget it is NET movement of molecules and water for Diffusion and Osmosis!
ReplyDeleteno diffusion is not for water
Deletereally good
ReplyDeleteFull definitions
ReplyDeleteDiffusion:
The net movement of particles from an area of high concentration to an area of low concentration until equillibrium is reached.
Osmosis:
The net movement of water particles across a semi permeable membrane from an area of high water potential to an area of low water potential until equillibrium is reached.
Osmosis and diffusion is also the passive net movement
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ReplyDeleteSuggestions for improvement:
ReplyDeleteDiffusion: when molecules move from an area of high concentration to an area of low concentration
Osmosis: the net movement of water, from a high concentration to a low concentration through a partially permeable membrane
Active transport: molecules being moved from an area of low concentration to an area of high concentration with ENERGY across a concentration gradient
Energy is only needed in primary active transport
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