Question

NEED AN ANSWER ASAP!!!! in 1953, miller and urey constructed an experiment that attempted to mimic the conditions leading to the formation of biomol cules on early earth

Part A: construct a hypothesis statement that Miller and Urey might have made prior to conducting their experiment. use an “if, then” format to write your statement.
Part B: Describe in detail their experiment. include what they used to simulate the conditons of early earth, and what their results were.

Answer 1

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rodja224

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Answer:

A// If early conditions of primeval earth had ammonia, methane, hydrogen in its atmosphere, then it is possible that amino acids such as glycine, α-alanine, and β-alanine may have been spontaneously formed from chemical reactions spurred by energy from lightning.

Their hypothesis was that the early conditions of primeval earth favored the spontaneous formation of organic molecules, from inorganic precursors, that may have been the origin of life. This theory is called abiogenesis.

B//Miller Urey put methane, ammonia, hydrogen gases in a glass flask and a pool of water at the bottom of the glass flask. The flask was heated moderately to simulate the hot conditions then. Sparks were also occasionally induced in the flask to mimic lighting. The flask was then cooled slowly to simulate cooling of earth over time.After one day, they found the presence of some amino acids (glycine, α-alanine and β-alanine) was discovered in the water in the flask

CREDIT TO: rodja224

Answer 2

Part A: If the conditions on early Earth were replicated in a laboratory setting, then it is possible to create the organic building blocks of life.

Part B: Miller and Urey's experiment, published in 1953, aimed to investigate the hypothesis that the conditions present on early Earth could have led to the formation of organic molecules, including amino acids, which are the building blocks of proteins. They used a closed system consisting of a flask of water, representing the Earth's primitive ocean, and a second flask containing a mixture of gases that they believed were present in the atmosphere of early Earth, including methane, ammonia, and hydrogen. The mixture of gases was continuously circulated between the two flasks, while an electrical discharge was applied to simulate lightning, which was believed to be a frequent occurrence in early Earth's atmosphere. After a week of continuous circulation and electrical stimulation, the researchers analyzed the contents of the water and found that several amino acids, as well as other organic molecules, had been produced.