Abiogenesis - Wikipedia, the free encyclopedia
In natural science, abiogenesis (pronounced /ˌeɪbaɪ.ɵˈdʒɛnɨsɪs/, AY-bye-oh-JEN-ə-siss) or biopoesis is the study of how life on Earth arose from inanimate matter. Most amino acids, often called "the building blocks of life", can form via natural chemical reactions unrelated to life, as demonstrated in the Miller–Urey experiment and similar experiments, which involved simulating some of the conditions of the early Earth, in a scientific laboratory. In all living things, these amino acids are organized into proteins, and the construction of these proteins is mediated by nucleic acids. Which of these organic molecules first arose and how they formed the first life is the focus of abiogenesis.
In any theory of abiogenesis, two aspects of life have to be accounted for: replication, and metabolism. The question of which came first gave rise to different types of theories. In the beginning, metabolism-first theories (Oparin coacervate) were proposed, and only later thinking gave rise to the modern, replication-first approach.Because you're taking evidence and non-sequituring it to mean what you want it to mean.Yes it does. Why does it not?
This is silly now:And neither can you prove that all things rose from abiogenesis. You can't go years into the past and see it happening. Even if remotely plausible (which it isn't) no one can prove that this is how life started. What is the physical property of gravity? It's like time, it isn't physical but it does indeed exist. You can't put time and gravity in a test tube. They aren't physical things. Regardless, even the test tube itself in my opinion proves God exists. Where did the atoms come from that comprise it? Why is it there? How were those atoms created? By the Creator.
Again, you have no evidence for a creator so claiming there is one is quite useless. Where is this creator? What scientific experiments can one conduct to prove the existence? How can one observe it? As I said before, you might as well be claiming furry creatures came to the earth and made everything.The experiment used water (H2O), methane (CH4), ammonia (NH3), and hydrogen (H2). The chemicals were all sealed inside a sterile array of glass tubes and flasks connected in a loop, with one flask half-full of liquid water and another flask containing a pair of electrodes. 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, liquids, and some of the building blocks for nucleic acids were also formed.
In an interview, Stanley Miller stated: "Just turning on the spark in a basic pre-biotic experiment will yield 11 out of 20 amino acids."
As observed in all subsequent experiments, both left-handed (L) and right-handed (D) optical isomers were created in a racemic mixture.
The original experiment remains today under the care of Miller and Urey's former student Professor Jeffrey Bada at the University of California, San Diego, Scripps Institution of Oceanography.