1. The theory of Abiogenesis
the theory of Abiogenesis has been said by Aristotle. This theory argues that the
origins of living things came from inanimate objects. Aristotle considered that frogs and
fish origin came from mud, from the land of origin of worms, maggots were first formed
from rotten meat and mice derived from the chaff and dirty cloth.
2. The theory of biogenesis
Emerging theory of biogenesis, briefly break the theory of Abiogenesis. So most
people no longer recognize the truth Aristotle in his theory of it. Scientists who
conducted the experiment so that it appears this theory are :
a. Franceso Redi (1626-1697) experiment is performed using three tubes, each
filled sliver of meat.
The first tube : filled sliver of meat, and then closed
The second tube : filled sliver of meat and closed
The third tube : gauze stuffed sliver of meat and opened entirely
After a couple of days left, the tubes checked. The result :
The first tube : not found a larva maggots in it.
The second tube : found some maggots on the tail of gauze covering.
The third tube : there are many maggots on meat it was rotting.
The conclusion of the experiment last
Maggots are not formed from decaying meat rather than flies that rested there,
then spawn and abandonment. The egg later hatches into a maggot.
b. Lazzaro Spallanzaini (1729-1799). The experiment was conducted using
materials from Bouillon filled on two tube-shaped gourd.
The first tube : filled 80 cc bouillon is then heated to 15 degrees Celsius in
a State open.
The second tube : tubes filled bouillon 80 cc meeting then closed with Cork
covered with wax and
then heated to 15 degrees Celsius.
After a couple of days left, the tubes are examined using a microscope.The result:
The first tube : bouillon looks very murky and tastes awful. When examined
using a microscope, there are many microbes.
The second tube : bouillon stays clear and does not contain microbes.
Spallanzani experiment conclusion: Microbes or microorganisms are scattered in
the air. Possible onset of life has been around since long before life formed.
c. Lous Pasteur (1822-1895). His experiments using glass bottles (resembles a
pumpkin). The tubes are filled bouillon 70 cc.
First step : glass tube closed meetings and heated.
the second step : the glass tube penetrated using pipe goose neck. And
cooled. Then examined using a microscope,It turns out that
clear water it begins not microbes.
Third step : the tube is tilted so that the water reaches the mouth of the
pipe neck stock a goose. Left a couple of days. The water in
them turning into turbid. When there are many microbes
turns out to be checked.
Conclusion the experiments of Louis:
a warming bouillon aims to kill microbes, so it becomes sterile. While the goose
neck pipe that was installed was intended to free the air can get into the tube out
but the bacteria are not able to touch the water. While the bouillon is tilted and
touches the mouth of the pipe. By digitally so it was concluded that no true
living beings originated from inanimate objects.
3. Theories of chemical evolution
Theories of chemical evolution including the following:
1. Harold Urey from America. He was a chemical engineer. The theory expressed,
that at one time the Earth's atmosphere is rich in the gas molecules that are the
important elements in the body of any living being. The molecule is methane
Urey intended, ammonia, hydrogen and water vapor. Of some elements are then
formed the substance of life first.
2. A.I. Oparin from Russia. He posited the theory that ancient atmosphere (millions
of years ago) begins water vapor, methane, ammonia and hydrogen. From the
chemical and physical conditions like that then the chemical evolution can be
formed, so that the existence of living beings because derived from living things
before.
3. Stanley Miller was a pupil of Urey which are no bored-bosanya experiment to
discover the origin of living things.
the theory of Abiogenesis has been said by Aristotle. This theory argues that the
origins of living things came from inanimate objects. Aristotle considered that frogs and
fish origin came from mud, from the land of origin of worms, maggots were first formed
from rotten meat and mice derived from the chaff and dirty cloth.
2. The theory of biogenesis
Emerging theory of biogenesis, briefly break the theory of Abiogenesis. So most
people no longer recognize the truth Aristotle in his theory of it. Scientists who
conducted the experiment so that it appears this theory are :
a. Franceso Redi (1626-1697) experiment is performed using three tubes, each
filled sliver of meat.
The first tube : filled sliver of meat, and then closed
The second tube : filled sliver of meat and closed
The third tube : gauze stuffed sliver of meat and opened entirely
After a couple of days left, the tubes checked. The result :
The first tube : not found a larva maggots in it.
The second tube : found some maggots on the tail of gauze covering.
The third tube : there are many maggots on meat it was rotting.
The conclusion of the experiment last
Maggots are not formed from decaying meat rather than flies that rested there,
then spawn and abandonment. The egg later hatches into a maggot.
b. Lazzaro Spallanzaini (1729-1799). The experiment was conducted using
materials from Bouillon filled on two tube-shaped gourd.
The first tube : filled 80 cc bouillon is then heated to 15 degrees Celsius in
a State open.
The second tube : tubes filled bouillon 80 cc meeting then closed with Cork
covered with wax and
then heated to 15 degrees Celsius.
After a couple of days left, the tubes are examined using a microscope.The result:
The first tube : bouillon looks very murky and tastes awful. When examined
using a microscope, there are many microbes.
The second tube : bouillon stays clear and does not contain microbes.
Spallanzani experiment conclusion: Microbes or microorganisms are scattered in
the air. Possible onset of life has been around since long before life formed.
c. Lous Pasteur (1822-1895). His experiments using glass bottles (resembles a
pumpkin). The tubes are filled bouillon 70 cc.
First step : glass tube closed meetings and heated.
the second step : the glass tube penetrated using pipe goose neck. And
cooled. Then examined using a microscope,It turns out that
clear water it begins not microbes.
Third step : the tube is tilted so that the water reaches the mouth of the
pipe neck stock a goose. Left a couple of days. The water in
them turning into turbid. When there are many microbes
turns out to be checked.
Conclusion the experiments of Louis:
a warming bouillon aims to kill microbes, so it becomes sterile. While the goose
neck pipe that was installed was intended to free the air can get into the tube out
but the bacteria are not able to touch the water. While the bouillon is tilted and
touches the mouth of the pipe. By digitally so it was concluded that no true
living beings originated from inanimate objects.
3. Theories of chemical evolution
Theories of chemical evolution including the following:
1. Harold Urey from America. He was a chemical engineer. The theory expressed,
that at one time the Earth's atmosphere is rich in the gas molecules that are the
important elements in the body of any living being. The molecule is methane
Urey intended, ammonia, hydrogen and water vapor. Of some elements are then
formed the substance of life first.
2. A.I. Oparin from Russia. He posited the theory that ancient atmosphere (millions
of years ago) begins water vapor, methane, ammonia and hydrogen. From the
chemical and physical conditions like that then the chemical evolution can be
formed, so that the existence of living beings because derived from living things
before.
3. Stanley Miller was a pupil of Urey which are no bored-bosanya experiment to
discover the origin of living things.
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