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Questions tagged [bioinorganic-chemistry]

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0answers
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Electrical mobility of biological relevant ions in solution

I've been trying to find references of electrical mobility of ions relevant in neuroscience (K+, Cl- Ca2+, HEPES). This is important to calculate liquid junction potentials of electrophysiology ...
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2answers
210 views

Is it ok to keep primers at 4 degrees?

I reconstitute my primers in nuclease free water ( no sterilised) this morning and I forgot them at 4 degrees, acording to the instructions, they should be storage at -20 after the reconstitution. I ...
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1answer
58 views

How could this molecule affect the body? (Lysergic acid derivative)

First of all, could you please help me name this molecule? I think the name of it is something like this: N,N-pentamethylene lysergic acid. Secondly, my main question is what could be the pharmacology ...
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43 views

Can anyone expolain this? Cell culture vials have strange hair-like condensation patterns

What is the hair-like polymer that condenses on the caps of the plastic cell vial? Inside vial are cells in a mixture of FBS and DMSO. The vials were frozen slowly in a special isopropanol-filled ...
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0answers
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Will charged water ions sprayed onto plants keep insects off?

I had stumbled on an article about a Dutch firm that devised an irrigation system that used mist of ionized water droplets that they claim keeps insects away from the plants. This break through would ...
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0answers
245 views

Calcium carbonate minerals in marine organisms shells

Calcium carbonate minerals exist in seawater in two main phases: calcite and aragonite. While calcite is the most stable phase, it is aragonite that precipitates first in seawater because of the high ...
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1answer
54 views

Can the dietary fibres as chemical compounds be regarded as polymers? [closed]

At the level of molecular structure, can the dietary fibres be regarded as polymers?
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0answers
43 views

Avoid Blood lyse color remain in DNA extraction

I tryed several times to extract DNA from freezed blood sample whit Qiagene kit but it gave very small amount of product due to good purity then I try extract manually by using CTAB PVP method and ...
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4answers
7k views

How did the first life form on Earth reproduce without DNA?

How did the earliest life forms exist without DNA? The most likely scenario I can think of for life happening from nothing is that, over billions of years, with trillions of water molecules and dust ...
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1answer
619 views

Why would a venus fly traps mouth that's still “chewing” die?

A venus fly trap produces leaves that act like traps for insects. A trapped insect is digested over several days. The trap then opens again to catch another insect. These traps regularly die off. ...
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1answer
51 views

Question regarding an Escherichia coli reaction

With respect to this link http://www.biocyc.org/ECOLI/NEW-IMAGE?type=REACTION&object=RXN-14479 Here the enzyme is mentioned and the two reacting compounds. Now , my question is 1. When these ...
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9answers
10k views

Why are there no organisms with metal body parts, like weapons, bones, and armour? (Or are there?)

Reading this question, Why are there no wheeled animals?, I wondered why no organisms seem to make use of the tensile and other strengths of metal, as we do in metal tools and constructions. I am ...
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1answer
12k views

How does inorganic phosphate inhibit alkaline phosphatase?

I want to know how is inorganic phosphate able to inhibit alkaline phosphatase.
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1answer
394 views

What is the molecular mechanism of cystine bond formation?

My bioinorganic and redox chemistry isn't up to par and I'm having a very difficult time understanding the chemical mechanism behind cystine bond formation. Most reactive environments are actually ...
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2answers
788 views

Why does cyanide inhibit CuZnSOD, but not MnSOD or FeSOD?

Different types of superoxide dismutase (SOD) contain different metal ions (Zn, Cu, Mn, Ni, or Fe), all of which allow them to catalyze one reaction, dismutation of superoxide anion, O2−. Cyanide can ...