Dictionary » M » Magnesium



(Science: chemical, element) An essential divalent cation. The major role is as the chelated ion in atp and presumably other triphosphonucleotides.

The magnesium atp complex is the sole biologically active form of atp. The other essential role of magnesium is as the central ion of chlorophyll. Cellular concentration is less than 5mM. Serum concentration approximately 1mM.

pharmacologic action: Hypomagnesemia can cause refractory ventricular fibrillation or ventricular tachycardia.

Uses: known hypomagnesemic states - suspect hypomagnesmia in alcoholics, chronic disease states, or others with poor nutrition; treatment of choice for torsade de pointes.

Dose: 1-2 grams iv push for cardiac arrest, over 1 to 2 minutes for Torsades, and over 5 to 60 minutes for acute myocardial infarction.

potential complications: transient flushing and diaphoresis, sinus bradycardia, hypotension, hyporeflexia and paralysis with overdose.

Abbreviation: mg

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principle of error-prone PCR???

I've never heard about Mn in PCR (which doesn't mean it's not used) and to my knowledge they always provide magnesium, but there are proteins which work better with one or another (e.g. pyrophosphatase is specific for pyrophosphate with one metal while with the other it can cleave ...

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by JackBean
Tue Sep 30, 2014 8:19 am
Forum: Molecular Biology
Topic: principle of error-prone PCR???
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Views: 286

Agriculture and Microbiology come together (Research Prjct)

... of what will go into my home made nutrients. I checked and all of them are usable by plants. Potassium Nitrate Boron Nitrite Calcium Phosphate Magnesium Powder Ammonium Phosphate Magnesium Phosphate Zinc Oxide Iron Chelate and Copper Chelate I also found a source for bulk chelated metal powder ...

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by Sophiahotep
Thu Nov 14, 2013 9:29 pm
Forum: Microbiology
Topic: Agriculture and Microbiology come together (Research Prjct)
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Re: Growth on metal pot?!

... chemical. some kind of soap. But most dish washing products are surfactant based rather than soap. Is your water pretty hard (alot of Calcium and Magnesium)?

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by JorgeLobo
Sun Jun 10, 2012 7:30 pm
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Topic: Growth on metal pot?!
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Please help me with comments on my experiment

... cytosine 17.5% guanine 20 add 1 gram ribose 21 mix in 15ml first derived substance and 5ml second derived substance 22 quickly stir in 1,5 grams magnesium ions 23 let sit ten minutes 24 extract and centrifuge same time and speed 25 chemically analyze every layer

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by Trenchent
Wed Jun 06, 2012 5:24 pm
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Could anyone please help with these questions? (Bio)

... and an oxygen or a nitrogen atom that are either in 2 different molecules or within the same molecule D. None of the above E. All of the above Magnesium has 12 protons. How many electrons in its 3rd energy level? A. 2 B. 4 C. 6 D. 8 E. 10 What is formed when an atom loses or gains an electron? ...

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by lindshastude
Tue May 01, 2012 3:50 pm
Forum: General Discussion
Topic: Could anyone please help with these questions? (Bio)
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