TERM
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DEFINITION
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DIFFUSION
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Passive net movement of particles down the concentration gradient (from region of high concentration to region of low concentration) until equilibrium
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OSMOSIS
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Passive net movement of Water molecules down the Water potential gradient (from region of lower solute concentration to region of higher solute concentration) across a partially permeable membrane
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ACTIVE TRANSPORT
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Movement of substances against the concentration gradient (from region of low concentration to region of high concentration) using energy (commonly in the form of ATP)
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Sunday, June 25, 2017
2.15: Understand the Processes of Diffusion, Osmosis and Active Transport by Which Substances Move Into and Out of cells
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in water, it is down the water potential gradient, not the concentration gradient
ReplyDeleteThis comment has been removed by the author.
Deleteis that correct, has this got it wrong
ReplyDeleteyes vivek ramen is right
ReplyDeleteIs osmosis (high to low) correct
ReplyDeleteisn't osmosis from high to low concentration?
ReplyDeleteyes, they got it wrong... the definition of osmosis is: the net movement of water paerticles across a partially permeable membrane (e.g. a cell membrane) down the water potential gradient (from an area of higher solute concentration to an area of lower solute concentration)
ReplyDeleteno, they got it correct but they explained it in a different way. You see, they said lower SOLUTE concentration to higher SOLUTE concentration. So basically, they said it in reverse.
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