Friday, 27 March 2015

Scientists solve the mystery of origin of cells!?

Chemists have experimentally demonstrated just how the building blocks of life ingredients can be created in just a chemical reaction using two ingredients and sunlight.

At its core cell consists of three subsystems: the system for creating sections, which with the help of the lipid content is kept in one place, the metabolic system with catalysts and enzymes and system for copying DNA and RNA.

DNA molecule contains the instructions for making proteins, one of the most important parts of all living organisms. However, the cells may not be copied without a pre-existing DNA and proteins can not be synthesized lipids without enzymes that are based on the proteins.

Problem reminiscent of the story of what is older - the chicken or the egg, now may be solved thanks to the effort of experts.

One of the biggest issues in the study of the origins of life is did the mentioned subsystems formed together and at once or one after the other. A team of Cambridge who runs John Sutherland found it to be a precursor of DNA, RNA, amino acids and lipids can be created from hydrogen cyanide or hydrocyanic acid.

All subsystems could be created spontaneously through chemical reactions driven by the
influence of ultraviolet light. The only thing missing is hydrogen sulfide actually to donate its electron so that it is possible that some minerals containing metals as catalysts part of the process, experts say.  

- The young Earth was a perfect place for such a reactionhydrogen cyanide and hydrogen sulfide in this period were plentiful, as were in meteorites and comets, that bombed our planet in the first few hundred million years - said Sutherland.

It is possible that when these processes were changes that created amino acids and lipids, but in other places.

- It is quite likely that these ingredients separately created "met" after rains united them in the same place - concluded Sutherland.


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