Multiple Choice
Why is it important for carbon dioxide molecules from the atmosphere to enter the Calvin cycle in plants?
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Intro to Organic Chemistry
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What was the significance of the Miller-Urey experiment in the context of organic chemistry?
A
It demonstrated that organic molecules could be synthesized from inorganic precursors under prebiotic conditions.
B
It proved that life originated from organic molecules in space.
C
It showed that organic molecules are unstable in the presence of water.
D
It confirmed that organic molecules can only be synthesized by living organisms.
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The Miller-Urey experiment was designed to simulate the conditions thought to be present on the early Earth, often referred to as 'prebiotic conditions'.
In the experiment, a mixture of gases (methane, ammonia, hydrogen, and water vapor) was exposed to electrical sparks to mimic lightning, which was believed to be a common energy source on early Earth.
The significance of the experiment lies in its results: after running the experiment for a week, Miller and Urey found that several organic molecules, including amino acids, had formed.
This finding was groundbreaking because it demonstrated that simple inorganic molecules could give rise to complex organic compounds under conditions that might have been present on the early Earth.
The experiment provided evidence supporting the hypothesis that the building blocks of life could form naturally from non-living matter, which was a crucial step in understanding the origin of life on Earth.
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