Only a Trillion by Isaac Asimov

Author:Isaac Asimov
Language: eng
Format: epub
Publisher: Pickle Partners Publishing
Published: 2016-10-25T16:00:00+00:00

What are the units which are involved? Without going into the chemistry, Table XXIII gives the names and some idea of the variety of these units.

Of these, the phosphate group exists as such in the ocean. It is an inorganic grouping scarcely more complicated than ammonia or carbon dioxide, so we don’t have to worry about it at all. The pentoses, purines, pyrimidines and amino-acids are all moderately complicated, their molecules being made up of from 10 to, at most 30 atoms apiece. And they are good, stable compounds; nothing fancy.

Let’s concentrate on the amino-acids. They are the most various of the groups and the most complicated, in some ways.

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