Think about the land in the region where you live. How was it shaped by plate tectonics? Is it still impacted by the movement of plates? Explain your answer. The region is southeast, I'm not sure where to find the information to answer this question and when i look it up nothing is coming up.

the endomembrane system i think

geologic time scale (for gradpoint) =)

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.