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Dictionary » I » Ion pumps

Ion pumps

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Ion uptake in freshwater teleosts?

From pgysiology it is well known that the concentration gradient of sodium and potassium ions across the cell membrane, determine ... the membrane of the body have powerful sodium-potassium pump that continualy pumps sodium ions to the outside and potassium ions to the inside of the cell. ...

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by anastasianikifor
Thu Aug 26, 2010 9:15 am
Forum: Physiology
Topic: Ion uptake in freshwater teleosts?
Replies: 2
Views: 5908

What is salt stress?

... in crabs is obtained by what methods, other than Sodium Potassium Ion Exchange Pumps and concentrated urine?

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by fastsandslash
Sat Jun 05, 2010 10:23 pm
Forum: Ecology
Topic: What is salt stress?
Replies: 8
Views: 17453

how does ATP work?

Hi emmabarrie, Answers to most of your questions can be found at http://www.atpsynthase.info/ "What kind of work can ATP ... the type of enzymes it binds to). Myosin uses ATP to make mechanical work; ion pumps use ATP to make transmembrane concentration gradients, etc.

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by Borisfen
Mon Feb 16, 2009 8:17 am
Forum: Cell Biology
Topic: how does ATP work?
Replies: 2
Views: 58505

Cell Membranes

... the only "holes" that are present in the cell membrane are ion channels, which have a tiny hydrophilic channel in the center that only ... ion. Other polar molecules pass through other passage proteins (pumps/permeases). Macromolecules (proteins, polynucleotides, polysaccharides) ...

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by MrMistery
Wed Jan 14, 2009 2:27 am
Forum: Cell Biology
Topic: Cell Membranes
Replies: 6
Views: 6129

Do all cells have the ability to perform photosynthesis?

... some are capable of using light to generate energy by light-driven ion pumps such as bacteriorodopsin(protons) and halorodopsin(chloride). @deostroll No. Photosynthesis ...

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by MrMistery
Sat May 17, 2008 8:37 am
Forum: Cell Biology
Topic: Do all cells have the ability to perform photosynthesis?
Replies: 11
Views: 11062
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