Cracking the Code of Life Questions: It was long thought that humans had around 100,000 genes. The initial survey of the human genome indicated that there were only about
genes in humans.
Fill in the blank.

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.

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).

answer(isometric);