Thermal proteins seen
through a microscope
Around four billion years ago, some of the amino acid molecules that were on the planet Earth began to join together into bigger molecules with hundreds of atoms in them, called themal proteins. Probably this happened in places where the water in the oceans on Earth was heated up by underwater volcanoes, because heating amino acids is what makes them join together into proteinoids.
Thermal proteins are chains of amino acid molecules all stuck together. They're not exactly one big molecule, but a bunch of individual molecules stuck together through a different kind of chemical bond. Instead of forming a solid clump, thermal proteins form a hollow sphere of molecules, with a space inside it (It looks like a circle in the picture because you are looking down at it from the top). This is because some of the amino acids in the thermal protein chemically don't like water (just the way oil tries to get away from water), and so they make a ball, all trying to get as far away from the water as they can.They can't help doing that; it's automatic. The whole thermal protein is about ten to fifteen microns in diameter, about the size of a small living cell (and much too small to see).
Thermal proteins making new
thermal proteins through budding
Thermal proteins could do a lot of the same things that living cells do today. They could divide in half to make more thermal proteins like themselves, as these thermal proteins in the picture are doing. They could let some molecules pass through their wall, while keeping other molecules out (osmosis).
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