Origins of Life

Which types of organisms developed first due to the early environmental conditions on Earth? 

• prokaryotic and aerobic

• prokaryotic and anaerobic

• eukaryotic and aerobic

• eukaryotic and anaerobic

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NGSS.HS-ESS2-7

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Which of the following was presumably absent from Earth Early atmosphere based on the conditions present at the time?

• Carbon Dioxide (CO2)

• Methane (CH4)

• Oxygen (O2)

• Water(H2O)

• Cyanide (CN-)

Tags

NGSS.HS-ESS1-6

The Miller-Urey experiment of 1953 was designed to test the hypothesis that lightning supplied the energy needed to turn atmospheric gases into organic molecules such as amino acids. Which of the following describes why the Miller-Urey theory is widely accepted today?

• Amino acids spontaneously form from molecules in the atmosphere today.

• Organic molecules are present today in extremely high concentrations.

• The process of synthesizing organic molecules from a mixture of gases has been successfully modeled in the laboratory. 

• No other alternative hypotheses have been introduced.

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NGSS.HS-LS1-6

The diagram shows a proposed theory of the origin of eukaryotic cells, called endosymbiosis.

Which of the following explains why cells that contained mitochondria-like organelles had an evolutionary advantage?

• They were able to photosynthesize

• They had more DNA

• They were able to make more use of available energy

• They were immune to bacterial invasion.

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NGSS.HS-LS1-7

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These scientists proved that organic molecules formed from inorganic molecules present in the Earth’s early atmosphere when given energy from lightening.

• Lennon and McCartney

• Einstein and Newton

• Watson and Crick

• Miller and Urey

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NGSS.HS-ESS1-6

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Mitochondria and chloroplasts are thought to be ________________________ cells engulfed by a larger one.

• Plants

• Eukaryotic

• Prokaryotic

• Viruses

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What was formed in the Miller-Urey experiments?

• amino acids

• proteins

• living cells

• DNA

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NGSS.HS-LS1-6

How are mitochondria and chloroplasts like bacteria cells?

• They divide by meiosis

• They contain their own DNA

• They have the same membrane-bound organelles

• They can make their own food

The image provided represents the following experiment to test Earth Early Atmosphere...

• Watson-Crick's DNA experiment

• Lynn Margullis Endosymbiotic Theory

• Miller-Urey Experiment

• Einstein's theory of general relativity

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NGSS.HS-ESS1-6

One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?

• onset of photosynthesis

• origin of genetic material

• Synthesis of organic molecules

• formation of the plasma membrane

Tags

NGSS.HS-LS1-6