Origin Of Life Research Project by Andrew Timkovich-ca

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Origin Of Life Research Project

Published on Dec 06, 2015

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Louis Pasteur with his experiment of sterilizing grapes a natural source of yeast that by sterilizing the grapes they would never ferment to produce wine without an outside source disproving the idea of spontaneous generation.
He also did an experiment with broth in sealed flask to prove his idea showing that nothing grew in the broth until it was open proving that an outside force is needed for life to develop

Pasteur added to the idea about the origin of life on Earth that there isn't any spontaneous generation and that all life is made by an outside source other life

The Miller-Urey experiment was an experiment that simulated hypothetical conditions thought at the time to be present on the early Earth, and tested for the occurrence of chemical evolution. or to make organic compounds from inorganic compounds
The liquid water was heated to induce evaporation, sparks were fired between the electrodes to simulate lightning through the atmosphere and water vapor, and then the atmosphere was cooled again so that the water could condense and trickle back into the first flask in a continuous cycle.

At the end of one week of continuous operation, Miller and Urey observed that as much as 10-15% of the carbon within the system was now in the form of organic compounds. Two percent of the carbon had formed amino acids that are used to make proteins in living cells, with glycine as the most abundant. Sugars, lipids, and some of the building blocks for nucleic acids were also formed.
The basic building blocks needed for life formed.

Oparin believed that there is no fundamental difference between a living organism and lifeless matter. His theory was that the properties that define life came about as a result of the process of evolution where lifeless matter was exposed to an atmosphere, containing methane, ammonia, hydrogen and water vapor. In his opinion, these were the components necessary for the evolution of life and the growth of simple organic matter. He then theorized that as organic matter became more complex, evolution resulted in a "biological orderliness" where survival of the fittest, and natural selection came into play creating modern day living things.

Oparin outlined a way he thought that basic organic chemicals might have formed into microscopic localized systems, from which primitive living things could have developed. He cited work done by de Jong on coacervates and research by others, including himself, into organic chemicals which, in solution, might spontaneously form droplets and layers. Oparin suggested that different types of coacervates could have formed in the Earth's primordial ocean and been subject to a selection process that led, eventually, to life.

All three scientists believed that life on Earth began when nonliving matter was exposed to the right combination of external forces including water, gases and atmosphere and evolved into simple living matter.
As the living organisms became more complex and external conditions changed over time, those organisms that could adapt to the changes survived while other organisms died out through the process of natural selection gradually evolving into modern living things.