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Electrochemical gradient

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Na+/K+ ATPase

... moves 3Na+ out of and 2K+ into cell cytoplasm. Each ion moves up its electrochemical gradient. In a normal cell, why don't Na+ ions enter and K+ ions leave the cell (each going ...

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by akbyst2
Tue Sep 28, 2010 12:22 am
Forum: Cell Biology
Topic: Na+/K+ ATPase
Replies: 4
Views: 4120

Active transport

... ions: (1 mark) a) In the direction determined by that ion's chemical gradient only b) Down their electrochemical gradient c) In the direction determined by that ion's electrochemical gradient ...

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by Nicolodn
Sat Sep 18, 2010 6:50 am
Forum: Cell Biology
Topic: Active transport
Replies: 1
Views: 3520

Re: atp synthase question

Flow of H+ depends on it's electrochemical gradient..pH between inner and outer membrane should be more acidic than in mitochondrial matrix in order ...

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by zami'87.
Mon Nov 16, 2009 6:23 am
Forum: Cell Biology
Topic: atp synthase question
Replies: 6
Views: 2186

Potential relationship between non-enzymatic antioxidants

... using a method that employed enzymatic dissociation and Percoll gradient centrifugation. Since ambient oxygen tensions are toxic to cultured ... by radioimmunoassay (RIA) and high performance liquid chromatography-electrochemical detection (HPLC-ECD) respectively. Hypoxic culture conditions ...

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by ianjager
Thu Sep 18, 2008 5:08 pm
Forum: Cell Biology
Topic: Potential relationship between non-enzymatic antioxidants
Replies: 2
Views: 10128

TRANSPORT much confusion

... required for the reaction, and the substance flows down its chemical(or electrochemical, for charged substances) gradient. This can be either simple or facilitated diffusion. As for your later question, i'll ...

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by MrMistery
Wed Jun 04, 2008 4:35 pm
Forum: Molecular Biology
Topic: TRANSPORT much confusion
Replies: 2
Views: 1638
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