Experiment of Lazarro Spallanzan

Experiment of Lazarro Spallanzani 

A.    Background

As we all know that biology is the study of living things. However, biology alone can not define the true meaning of life. Many scientists who have examined it. We all believe that eventually we will die. That is a fact that there was no doubt, we often think how everything started? Every living creature created from the parent, there are some very silly questions, but we need to examine and thoroughly example; Which was created first egg or chicken?. Similarly, humans are created through the mother's womb. The question that the parent is created from where? The questions above have been studied by scientists in answering these questions in terms of science.

Many previous scientists who thought the same as our thinking about how the origin of life. They tried to examine these issues through experiments that their respective designs. Through these experiments eventually emerged megenai theories or concepts first gorg life.

Among the theories is the famous theory of Abiogenesis and the theory of Biogenesis. Abiogenesis theory first emerged than abiogenesis theory. Scientists who first advanced the theory is Aristotle more than two thousand years ago and supported by the scientist Antoni Van Leeunwenhoek. Abiogenesis theory states that life originated from inanimate objects. However, this theory and argue with the emergence of the theory of Biogenesis which states that living things come from previously living things. Scientist who support this theory is, among others; Lazarro Spallanzani, Francesco Redi, And Louis Pasteur.

Spallanzani Lazarro stated this theory by doing experiments on water treatment broth with different. To learn more about how to do Lazarro Spallanzani experiment, then this report can be prepared to provide additional information. If we can find the origin of life on Lazarro conducted by Spallanzani’s experiment.

 B. Preview Of Literature

Until the early 19th century, people generally believed in the ongoing spontaneous generation of certain forms of life from non-living matter. This was paired with heterogenesis, the belief that one form of life derives from a different form (e.g. bees from flowers). Classical notions of abiogenesis, now more precisely known as spontaneous generation, held that certain complex, living organisms are generated by decaying organic substances. According to Aristotle it was a readily observable truth that aphids arise from the dew which falls on plants, fleas from putrid matter, mice from dirty hay, crocodiles from rotting logs at the bottom of bodies of water, and so on (Anonim¹, 2008).

Around the year 1675 Anthoni van Leeuwen Hoek back raindrops observed using a microscope and saw several small objects in the water droplets. He called these objects "Tierkin" (Dutch term that means a body can live independently). But the question is derived from living things or origin of life arise because of these living creatures (Orphan, 1987).

The first solid evidence against spontaneous generation came in 1668 from Francesco Redi, who proved that no maggots appeared in meat when flies were prevented from laying eggs. It was gradually shown that, at least in the case of all the higher and readily visible organisms, the previous sentiment regarding spontaneous generation was false. The alternative seemed to be biogenesis: that every living thing came from a pre-existing living thing (omne vivum ex ovo, Latin for "every living thing from an egg") (Anonim², 2007)

Many theories are emerging to address the origins of life. There abiogenesis theory, theory of Biogenesis, Cozmosoic, naturalist natural creation, as well as the chemical theory. There are some scientists who argue that life comes from evolution. However, not a few who believe in this world that there is no evolution. Among some earlier theories, the theory of abiogenesis and the theory of the gasket Biogenesis often debated by scientists (Kimball, 1999).

Lazarro theory Spallanzani, scientists from Italy who oppose the experiment John Needham. He says that life is seen in the water caused by a warming broth that is not long enough to kill all microorganisms. Lazarro trial can not be uprooted Spallanzani generatio spontae theory because according to the opinion that the supporters of the theory to life spontaneously arise from inanimate objects to life-style required Lazarro Spallanzani experiment can not perform its function because the jar and the pumpkin experiment clogged meetings (Anonim³, 2007 ).

There are many theories developed to explain the origin of life. From this abiogenesis theory emerged after the discovery microscope by Antoni van Leeuwen Hoek. At the time of Aristotle to observe fish. That's what pushed Antoni Van Hoek Leewen found living beings (Protozoa) in a marinade of hay and assume that living things came from the straw. This theory we know that Spontae Generation beings from inanimate objects (Ruinsyam, 2003).

The theory does not last long, in the year 1668 comes a theory that denies the theory of Biogenesis which states that living things come from living things. This theory was introduced by Francesco Redi to conduct research using eight cylinders are divided into two parts. Four tubes in the body with meat, fish, bread mixed with milk, and snake meat. Four other tubes were treated the same as the previous tube. But the fourth sealed canister. After several days the tube is not closed and there are fly larvae in a closed tube that is not happening no direct contact with air (Janive, 2002).