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    what is the difference between down and across a concentration gradient ?

    thank you
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    There is no difference. They mean the same thing.
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    (Original post by Blue Rose)
    There is no difference. They mean the same thing.

    thank you, sorry i meant across and down ?
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    (Original post by jojo1995)
    thank you, sorry i meant across and down ?
    Across is from one side to the other (without specifying a direction of movement), down is from the area of highest concentration to lowest
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    (Original post by Blue Rose)
    Across is from one side to the other (without specifying a direction of movement), down is from the area of highest concentration to lowest
    thank you
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    You can never have substances going across a concentration gradient. They either go down (from high to low concentration) or up (from low to high concentration) a concentration gradient. If the concentrations are the same there is no diffusion
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    (Original post by burtondog)
    You can never have substances going across a concentration gradient. They either go down (from high to low concentration) or up (from low to high concentration) a concentration gradient. If the concentrations are the same there is no diffusion
    thank you so much !
 
 
 
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