Origins of Life

This experiment was conducted by the scientists:

• Stanley Miller and Harold Urey

• Harold Urey and Albert Einstein

• Louis Pasteur and Francesco Redi

• James Watson and Francis Crick

Miller/Urey and other scientists have shown that:

•  Life on early Earth required material from space

• Cells survived in the primitive atmosphere

• Amino acids could be produced from inorganic molecules 

• Simple cells can be produced in a laboratory

Which of the following describes what the first life form resembled?

• Eukaryotes

• Plants

• Bacteria

• Fungi

Which question were the scientists trying to answer with this experiment?

• Where do cells come from?

• How did prokaryotes form cell membranes?

• How are biomolecules formed?

• What gave rise to the Eukaryotic cell?

The gas in the apparatus mimicked? 

• Early oceans

• The void of space

• Fusion reactions of stars

• Early Earth's atmosphere

Which of the following was probably not present in the atmosphere of the primitive Earth? 

• Methane

• Oxygen

• Water

• Carbon dioxide

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Mitochondria and chloroplasts are thought to be ________________________ cells that were engulfed by a larger cell.

• Plants

• Eukaryotic

• Prokaryotic

• Viruses

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First cells and organisms to have evolved must have been_______________ because of lack of _____________

• anaerobic , oxygen

• aerobic, oxygen

• anaerobic, carbon dioxide

• aerobic, oxygen

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Which type of cell came first?

• Eukaryotic

• Prokaryotic

• Plant

• Both Eukaryotic and Prokaryotic cells evolved around the same time

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Which of the following correctly sequences the order in which bacterial cells appeared on Earth?

• Aerobic bacteria, Photosynthetic bacteria, Anaerobic bacteria

• Anaerobic bacteria, Aerobic bacteria, Photosynthetic bacteria

• Anaerobic bacteria, Photosynthetic bacteria, Aerobic bacteria

• Photosynthetic bacteria, Aerobic bacteria, Anaerobic bacteria