[Campbell Biology P.575] Based on Figure 25.2, which of the following statements accurately ... | Practice Question

Based on Figure 25.2, which of the following statements accurately compares the amino acid synthesis in the 1953 classic Miller study with the 2008 reanalysis simulating volcanic eruptions?

  • A: The 1953 study produced more types of amino acids than the 2008 study.
  • B: The total mass of amino acids produced in 2008 was significantly higher than in 1953.
  • C: Both studies produced the same number of amino acid types and mass.
  • D: The 2008 study exclusively focused on the number of amino acids, not the mass.
  • E: The 1953 study utilized a reducing atmosphere, while the 2008 study used a neutral atmosphere.

Explanation

Figure 25.2 clearly shows that both the number and mass of amino acids produced were significantly higher in the 2008 reanalysis of the simulated volcanic eruption conditions compared to the classic 1953 Miller study. Specifically, the mass of amino acids in 2008 was approximately double that of 1953.