Which of the following posits that the metabolic reactions that led to the first cells took place on the porous surface of iron-sulfide-rich rocks at hydrothermal vents?
A) Hydrothermal vent hypothesis
B) Iron-sulfur world hypothesis
C) RNA world hypothesis
D) Ribozyme hypothesis
E) Protoevolutionary hypothesis

Question

Which of the following posits that the metabolic reactions that led to the first cells took place on the porous surface of iron-sulfide-rich rocks at hydrothermal vents?  
A) Hydrothermal vent hypothesis
B) Iron-sulfur world hypothesis
C) RNA world hypothesis
D) Ribozyme hypothesis
E) Protoevolutionary hypothesis

Quizplus · Accepted Answer

The hypothesis that posits that the metabolic reactions that led to the first cells took place on the porous surface of iron-sulfide-rich rocks at hydrothermal vents is the Iron-sulfur world hypothesis. Option A, Hydrothermal vent hypothesis, is related to the idea that life originated in hydrothermal vents, but it does not specify the role of iron-sulfide-rich rocks. Options C, D, and E refer to other hypotheses about the origin of life.

Which of the Following Posits That the Metabolic Reactions That