Origins of Cells

Which scientist disproved the idea of spontaneous generation once and for all by using a specifically designed swan-necked flask to heat broth?

• Spallanzani

• Pasteur

• Redi

• Needham

Which of the following is the natural law that states that living organisms come only from other living organisms and are not created from nonliving materials?

• evolution

• oxidation

• biogenesis

• abiogenesis

Which scientists successfully performed experiments to create amino acids from the chemicals they believed made up the early atmosphere? (Select all that apply)

• Stanley Miller

• Sidney Fox

• Harold Urey

• J.B.S. Haldane

• Alexander Oparin

According to most scientists, which of the following is NOT a characteristic of the first cell(s)

• aerobic

• prokaryotic

• anaerobic

• heterotrophic

According to the theory of endosymbiosis, how did cells acquire mitochondria?

• A eukaryotic cell engulfed a virus

• A large aerobic cell engulfed a chloroplast

• A large anaerobic cell engulfed a small aerobic bacterium

• A large anaerobic cell engulfed a photosynthetic bacterium

According to theory of endosymbiosis, how did plant cells evolve

• An anaerobic cell engulfed a chloroplast

• An aerobic, eukaryotic cell engulfed a photosynthetic bacterium

• An anaerobic cell engulfed a small aerobic bacterium

• A large anaerobic cell engulfed a photosynthetic bacterium

How are mitochondria and chloroplasts like bacteria cells?

• They divide by meiosis

• They can make their own food

• They have the same membrane-bound organelles

• They contain their own DNA

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What was formed in the Miller-Urey experiments?

• amino acids

• proteins

• living cells

• DNA

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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

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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?

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