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Dictionary » P » Potential gradient

Potential gradient

Definition

noun

(1) The local space rate of change of the potential with respect to displacement.

(2) The net difference in electric charge across a cell membrane.


Supplement

Word origin: potential: from Late Latin potentiālis, powerful, from Latin potentia, power; gradient: from Latin gradiens, present participle of gradior (“‘to step, to walk’”).

Synonym: electric gradient.


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Re: Hypotonic/Isotonic Solution Question?

... a semi-permeable membrane, from a low concentrate solution (high water potential) to a highly concentrated solution (low water potential), up a solute concentration gradient. [...] Net movement of solvent is from the less-concentrated (hypotonic) to the ...

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by chib4
Sun Jul 05, 2009 7:45 am
 
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aerobic and anaerobic glucose degeneration in a cell

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by Jesse2504
Tue Jun 23, 2009 3:43 am
 
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Topic: aerobic and anaerobic glucose degeneration in a cell
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Re: Anabolism/Catabolism as Endergonic or Exergonic?

... but catabolism can be thought of as "falling down" an energy gradient, going from larger compounds with higher potential energy, to smaller compounds of lower potential and giving up energy to the system ...

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by blcr11
Mon Jan 12, 2009 5:33 pm
 
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Re: resistance

... you apply a voltage across the membrane that opposes the normal voltage gradient until the current becomes zero. The potential at that point has to be equal to the potential of the cell membrane, but in the opposite ...

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by blcr11
Wed Nov 12, 2008 8:43 pm
 
Forum: General Discussion
Topic: resistance
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two questions conduction and RMP

... the cell more negative right thus ultimately reaching the equilibrium potential for potassium of about -97mV..and if ions are flowing inwards this ... so are the potassium ions moving against their concentration gradient to enter the cell? Have I got this right.. also for the question: ...

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by biology_06er
Mon Nov 10, 2008 1:36 am
 
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