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Multiple Choice
What did the Miller-Urey experiment demonstrate about the origin of organic compounds?
A
It demonstrated that DNA could spontaneously form in early Earth conditions.
B
It showed that organic molecules could be synthesized from inorganic precursors under early Earth conditions.
C
It confirmed that life originated from extraterrestrial sources.
D
It proved that life began in a primordial soup.
Verified step by step guidance
1
The Miller-Urey experiment was designed to simulate the conditions thought to be present on early Earth, specifically the atmosphere and energy sources.
The experiment involved a closed system containing water, methane, ammonia, and hydrogen gases, which were believed to be the components of the early Earth's atmosphere.
Electrical sparks were used to simulate lightning, providing energy to drive chemical reactions within the system.
After running the experiment for a week, the researchers found that several organic molecules, including amino acids, had formed from the inorganic precursors.
This demonstrated that organic molecules, essential for life, could be synthesized from inorganic substances under conditions similar to those of early Earth, supporting the idea of abiogenesis.