What are genes? 1.specific proteins that DNA wraps around to form chromosomes
2.sections of DNA that control traits by encoding specific proteins
3.specific locations on DNA where chromatids attach to each other
4.entire threads of DNA wrapped around histone proteins

2. Sections of DNA that control traits by encoding specific proteins.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

if you listed your answers right then i believe your answer is b.