How Life Began

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

The electrical sparks mimicked?

• The Sun's energy
• Lightning
• Volcanic eruptions
• Cosmic radiation

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What was the product of the Miller-Urey Experiment?

• Simple amino acids
• Simple nucleotides
• Simple lipids
• Simple monosaccarides

Tags

NGSS.HS-LS1-6

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

• Methane
• Oxygen
• Water
• Carbon dioxide

Tags

NGSS.HS-ESS1-6

The idea that Earth's early oceans had organic molecules that became the first life is called the...

• Primordial soup hypothesis
• Bubble hypothesis
• Miller-Urey Experiment
• Radioactive dating theory

Which statement best describes conditions on early Earth?

• hot with volcanic activity and electrical storms
• dry land covered with volcanic dust
• cold oceans
• dark and dusty with abundant water

Tags

NGSS.HS-ESS1-6

Why is Deep Sea Vent Theory a possible explanation for life on Earth?

• It has biological communities and energy
• It is dark and no oxygen
• It has a light source and energy from the vents
• High levels of electricity are generated there

Tags

NGSS.HS-ESS2-7

NGSS.HS-LS2-3

Which of the following does not support the RNA world hypothesis, which states that RNA functioned as the first genetic material in early protobionts?

• Many of the most critical elements of cells are composed mostly or entirely of RNA.
• RNA has been demonstrated to act as a catalyst in modern cells.
• Modern cells use an RNA template when synthesizing proteins.
• In modern cells, RNA provides the template on which DNA nucleotides are assembled.