Primordial Soup Hypothesis In The 1920's

This chapter covers the basics that you may have learned in your chemistry class. The questions that follow

When life arose on Earth about 4 billion years ago, the first types of cells to evolve were prokaryotic cells. For approximately 2 billion years, prokaryotic-type cells were the only form of life on Earth. The oldest known sedimentary rocks found in Greenland are about 3.8 billion years old. The oldest known fossils are prokaryotic cells, 3.5 billion years in age, found in Western Australia and South Africa. The nature of these fossils, and the chemical composition of the rocks in which they are found, indicates that these first cells made use of simple chemical reactions to produce energy for their metabolism and growth. Eukaryotic cells evolved into being between 1.5 and 2 billion years ago. Eukaryotic cells appear to have arisen from prokaryotic cells, specifically out of the archaea. Indeed, there are many similarities in molecular biology of contemporary archaea and eukaryotes. However, the origin of the eukaryotic organelles, specifically chloroplasts and mitochondria, is explained by evolutionary associations between primitive nucleated cells and certain respiratory and photosynthetic bacteria, which led to the development of these organelles and the associated explosion of eukaryotic diversity. Today Prokaryotes

Early earth was dominated with carbon dioxide and hydrogen sulfide. Hydrogen sulfide are invisble gas that were poisonous. We think this is when life first took hold. Penny Boston and Diana Northern investigate how life can survived here. They went to a cave, Cueva day Pl lose which was filled with hydrogen sulfide. Life is thriving inside the cave. Single cell bacterias snot tights were here. Bacteria are common organism, grow adapt and reproduce. Many bacteria were found and they survive from the hydrogen sulfide. If they can find life here, then life can be formed in early earth.

The study of science is defined as that which deals with the workings of the physical world we are able to observe and measure. The origin of life, however, is a topic that science has long grappled with, despite the impossibility of observing or proving any origins theory in a strictly scientific manner. Today, the widely accepted theory of life’s beginning is the theory of Evolution by mutation and natural selection, or Neo-Darwinism. Most people in our modern society accept this theory at face value because it is popular with the majority of scientists, but it must always be taken into account that our origins cannot be proven scientifically and that, in fact, the theory of Evolution is not the only or even the most logical theory

    Secondly, I present to you the “Law” of Biogenesis, which is actually not a law at all. This “Law” states that matter can arise spontaneously from other matter. Some would say that Biogenesis is an existing fact, because of the Miller Urey Experiment. This Experiment, though trying to prove that Biogenesis exists, actually proves exactly the opposite. Miller tries to convey life as a spontaneous event, which formed as the effect of an accidental chemical reaction in the Earth’s atmosphere(Answers). The scientists who conducted this experiment did not use any oxygen to support their replicated atmosphere. Instead they used methane ammonia, even though our earth is supported by oxygen. Although the Miller Urey did

My earliest memory of science in elementary school was in first grade. I remember walking into the classroom early in the morning and seeing plant pots lined up in the back of the room. Of course one of us asked, Mrs. Denny, what are those for? She answered like any experienced teacher “We will get to those after lunch. Thank you for noticing though.” As a young student, I was more interested about taking the plant home to my mom and showing her what I did. After lunch, we went on a walk to the atrium in the center of the school. Mrs. Denny pointed out the different kinds of plants that were in the atrium like flowers, and other small plants. We walked back to our classroom and talked about what a plant needs to grow and finally got to make a plant ourselves. We each had a cup of water, a cup of soil, a pot, and a plant. I also remember in third grade learning about the weather by creating a big picture of the water cycle with the clouds and why there is lightening and thunder. After we made the picture, we each got to write down a question about weather and Mrs. Heffernan went over each one. I loved science when I was little because I was able to explore and try new things. I struggled in math and reading because they were very black and white but science allowed creativity. I enjoyed science in elementary school because it was very hands on so I didn’t have to sit in my seat. I would define science has a content area that allows the individual to research and develop

Chemical evolution is the main exploratory clarification for the birthplace of life. Like every scientific theory, the hypothesis of chemical evolution has an example part that makes a case about the common world and a procedure segment that clarifies that patter. The example part is that notwithstanding little atoms, complex carbon-containing substances exist and are needed forever. The procedure part is that in Earths early history, straightforward concoction mixes consolidated to frame more mind boggling carbon-containing substances before the advancement of life. The hypothesis keeps up that inputs of vitality prompted the development of progressively complex carbon-containing substances, coming full circle in an intensify that could recreate

The topics I read about in the first couple of chapters was about the understandings of evolution and DNA. The author pointed out many times the reasons he created his book throughout chapter 1 but other then that it explains some characteristics in a gene which is selfishness and altruism. As the story progresses into chapter 2 the author begins to talk about primordial soup and where life began. The theory of primordial soup is when all of life began in the ocean or some sort of liquid form. I find this theory to be very fascinating as I have always wondered, like many others, how life came to be on earth and this theory demonstrates a very likely and understandable possibility. He starts to teach us of why sexual reproduction is preferable

We find that Anaximander of Miletus (611 B.C.-546 B.C.) advanced the traditional evolutionary idea, already quite common in his day, that life first evolved from a type of pre-biotic soup, helped along a bit by the rays of the sun. He believed that the first animals developed from sea slime which had been evaporated by the suns rays. He also

Most of us are familiar with the panspermia hypothesis – that life can be “seeded” from asteroid, comet, and planetoid contents – but to date, no direct evidence has been discovered. So, why should we consider meteorites to be possible parents? The truth is out there somewhere and these space rocks contain the essentials, as far down as to amino acids. Until now, what has been recovered has been regarded as structured. However, the matter of Tagish Lake arose.

The "warm little pond” is a theory that many modern biologist believe all life originated from. Whilst there had been plenty of theories prior to Darwin’s on the origin of life, his was the first that proposed an explanation that is consonant with the larger picture of evolution of life on earth. Darwin’s theory of “the warm little pond” stipulates that life originated in shallow bodies of water that contained very simple chemicals present in early earth. Adding the presence of an energy source such as heat, light or electricity, Darwin believed that life could form. The most significant test of this theory was the Urey-miller experiment in the 1950’s. This involved sending an electrical current through a sealed flask containing a chemical solution of methane, ammonia, hydrogen and water which were all the chemicals thought to be present in very early earth. At the conclusion of the experiment, two percent of the carbon had formed amino acid 13 of which that are used to make proteins

Although early Earth was hostile, it provided a great environment for the production of organic molecules. Events such as lightning, volcanic eruptions, meteorites, radioactivity in the Earth’s crust, and the easy access of ultraviolet light, are thought to have provided the energy for these molecules to produce. Therefore, the conditions of early Earth were critical in the commencing of the first organic molecules.

The article reports that University College London geochemist Dominic Papineau and his student Matthew Dodd described fossils similar to those found in the Apex Chert in an outcrop known to be anywhere from 3.77 billion to 4.28 billion years in age. This outcrop, located in Quebec, is referred to as the Nuvvuagittuq Greenstone Belt and is a remnant of Earth’s original ocean floor. In the article, Dodd describes the hematite fossils contained by the Nuvvuagittuq Greenstone Belt as “tubelike” and suggests that they were formed by a community of microbes that lived up to 4.28 billion years

Life has continually perplexed and fascinated individuals since the dawn of mankind. The subject’s complexity is so great even over the course of human existence only a minute fraction of its mysteries have been unraveled. A phenomenon which has always intrigued scientists is the origin of life on Earth, and in recent years significant advancements have been made in the understanding of this enigma. This essay will briefly outline two theories regarding life’s origin on Earth to further comprehend why an explanation for this phenomenon has been so difficult to reach.

According to astronomical research and geological evidence, scientist indicate the universe is approximately thirteen thousand eight hundred and twenty billion years old. The first link to humanity started with a primate group called Ardipithecus. While our ancestors have been around for about six million years, the modern form of humans only evolved about two hundred thousand years ago. The age of the Earth is estimated about four point fifty four billion years because that is the age of the oldest rocks with fossil evidence of life on earth. The oldest rocks on Earth found to date are the Acasta Gneisses in northwestern Canada near the Great Slave Lake, which are four point three billion years old. The study of the origin of life on Earth, more specifically abiogenesis, is the natural process of life arising from non-living matter. Life on Earth is believed to have began from organic compounds about three point eight to four billion years ago. Despite several competing theories for how life arose on Earth scientist only know when life first appeared on Earth and are still far from answering how it appeared. Since it is hard to prove or disprove them, no fully accepted theories of the origin of life exists.