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10 Questions

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Origin and Evolution of Life

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Questions and Answers

Which of the following is true about the early atmosphere of Earth?

It had a low concentration of nitrogen (N2)

It contained oxygen (O2)

It had a high concentration of carbon dioxide (CO2) (correct)

It lacked water vapor (H2O)

What are the four requirements for the formation and accumulation of biomolecules?

Chemical building blocks, energy, absence of oxygen, and time (correct)

Chemical building blocks, oxygen, energy, and time

Chemical building blocks, water, oxygen, and time

Chemical building blocks, energy, oxygen, and life

Which hypothesis suggests that organic monomers formed polymers on hot rock/clay surfaces?

Iron-sulfur world (correct)

Miller-Urey experiment

Protobionts

Prebiotic soup/broth

What are protobionts?

Abiotically produced organic molecules Signup and view all the answers

Who tested the prebiotic soup hypothesis in the 1950s?

Miller and Urey Signup and view all the answers

Which of the following is true about the age of the Earth?

Earth is approximately 4.6 billion years old Signup and view all the answers

What were the main components of the early atmosphere?

Carbon dioxide (CO2) and water vapor (H2O) Signup and view all the answers

What is the Iron-sulfur world hypothesis?

Cracks in deep ocean floor allowed the formation of organic molecules Signup and view all the answers

What did Oparin and Haldane test in the 1920s?

The composition of the early atmosphere Signup and view all the answers

What is the main focus of the chapter 'Origin and evolutionary history of life'?

The chemistry of life Signup and view all the answers