As Dr Bernstein succinctly put it, the chemical raw materials for life, in the form of simple compounds that could then be assembled into more complex biomolecules, could come from above, below or beyond.The "above" theory ie, that the raw materials were formed in the atmosphere, and which Dr Miller's original experiment was intended to investigate has fallen out of favour.
Compared with complex biomolecules, the use of simple compounds, such as chemical moieties and peptides, and other small molecules can be advantageous by leading to less expensive and easily tunable biomaterial formulations.
Now, chemists report that a pair of simple compounds, which would have been abundant on early Earth, can give rise to a network of simple reactions that produce the three major classes of biomolecules nucleic acids, amino acids, and lipids needed for the earliest form of life to get its start.
Chemists report today that a pair of simple compounds, which would have been abundant on early Earth, can give rise to a network of simple reactions that produce the three major classes of biomolecules nucleic acids, amino acids, and lipids needed for the earliest form of life to get its start.
This trend would be consistent with the production of simple compounds from the preferential cracking of C-containing bonds in a more complex starting material.
Polyether, any of a class of organic substances prepared by joining together or polymerizing many molecules of simpler compounds (monomers) by establishing ether links between them; polyethers, which may be either chainlike or networklike in molecular structure, comprise an unusually diverse group of polymers.
Formerly it was believed that the sulfosalts were salts of complex hypothetical thioantimonic or thioarsenic acids (e.g., HSbS2, H18As4S15, H3AsS3), but X-ray diffraction analyses indicate that the atomic structures of many sulfosalts are based on structural fragments of simpler compounds such as galena (lead sulfide; PbS) blocks and stibnite (antimony trisulfide; Sb2S3) sheets.
Many of these metabolic processes are involved in the conversion of carbohydrates to simple compounds and the use of methane in the absence of oxygen.
In condensation polymerization, each step of the process is accompanied by the formation of a molecule of some simple compound, often water.
The industry thrived by identifying a steady stream of relatively simple compounds that treated lots of people, patenting them and making a fortune.
