Chemical reaction rates vary depending on the concentrations of reactants.In which primitive Earth environment would conditions have shifted reactant concentrations to favor increased polymerization of monomers?
A) Rocky outcroppings with full sun exposure
B) Deep, wide freshwater lakes
C) Hot, sandy beaches
D) Shallow ponds with clay bottoms
E) Thermal vents deep in a salty ocean

Question

Quizplus · Accepted Answer

Shallow ponds with clay bottoms would provide a confined space with limited water flow, favoring the accumulation of monomers. Clay particles have a negative charge that may concentrate and bind positively charged monomers, increasing their local concentration and thus the likelihood of polymerization.

Chemical Reaction Rates Vary Depending on the Concentrations of Reactants