Which hypothesis about the origin of organic molecules relies on the chemical reaction between hydrogen sulfide (H₂S)and iron (Fe)for the build up of an H₂ concentration gradient to provide energy for the reduction of N₂ to NH₃? A)Reducing Atmosphere Hypothesis. B)Extraterrestrial Hypothesis. C)Deep-Sea Vent Hypothesis. D)Both Reducing Atmosphere and Extraterrestrial Hypotheses. E)All three hypotheses use this exact reaction to create a chemical gradient to form amino acids.

Question

Quizplus · Accepted Answer

The description fits with the Deep-Sea Vent Hypothesis, which proposes that the energy for the synthesis of organic molecules originated from the chemical gradients produced by hydrothermal vents.

Which Hypothesis About the Origin of Organic Molecules Relies on the Chemical