Which statement best describes the amount of catalyst that remains at the end of a reaction? a. more catalyst is present at the end than at the beginning of the reaction. b. less catalyst is present at the end than at the beginning of the reaction. c. the amount of catalyst is the same at the end as at the beginning of the reaction. d. the catalyst is consumed by the reaction, so none remains at the end of the reaction.

The correct answer is option C. The amount of catalyst is the same at the end as at the beginning of the reaction.

The catalyst is a compound, which is added to a chemical reaction to speed it up. The catalyst act as an enhancer of the reaction, it is not involved in the reaction. As the catalyst is not involved in the reaction process, then amount of the catalyst is not reduced during the reaction. Also, the catalyst is not generated during the reaction so, the amount of the catalyst does not increase. So, the amount of the catalyst present in the starting remains the same at the end of the reaction.

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation:

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.