Which statement best describes enzymes?

(a) temperature changes do not affect enzymes
(b) every enzyme controls many different reactions
(c) enzymes are produced tom the building blocks of carbohydrates
(d) the rate of activity of an enzyme might change as ph changes

The answer is c enzymes are the produce Tom the building blocks of carbohydrates

I think the correct answer from the choices listed above is option B. Every enzyme controls many different reactions. Enzymes are used to speed up chemical reactions especially those that proceed slowly. They are biocatalysts. Hope this answers the questions.

Both the smooth and rough endoplasmic reticulum help in the production and storage of proteins The main difference is that one contains ribosomes on it and the other does not.

Explanation: The main difference lies between the SER and RER is the presence of ribosomes, as SER do not have ribosomes but RER have ribosomes.