36.7k views
1 vote
Which of the following are TRUE?

a. the suffix "-ase" indicates an enzyme
b. often enzymes are named for the substrates they act upon
c. enzymes are larger than their substrates
d. Enzymes have to be constantly produced because theyare used up in reactions

User Ian Wood
by
8.6k points

1 Answer

4 votes

Final answer:

Enzymes are indicated by the suffix '-ase' and are often named after their substrates, and they are typically larger than their substrates. They do not get consumed in the reactions they facilitate but act as organic catalysts, made mostly of amino acids, repeatedly lowering the activation energy for chemical reactions.

Step-by-step explanation:

The truth about enzymes is that the suffix “-ase” indicates an enzyme, enzymes are often named for the substrates they act upon, and they are typically larger than their substrates. However, it is not true that enzymes have to be constantly produced because they are used up in reactions. Instead, enzymes are not consumed by the reactions they catalyze; they are reused.

Enzymes are made largely of amino acids and function as biological catalysts by lowering the activation energy required for chemical reactions. They have an active site where the substrate binds, and this high level of specificity is due to the particular three-dimensional shape and electrical charges of both the enzyme and the substrate. This specificity can range from absolute, acting on a single substrate, to group specificity, acting only on certain chemical groups.

Enzymatic nomenclature often includes the substrate name followed by the type of reaction it catalyzes, such as alcohol dehydrogenase. The large size and complex nature of enzymes allow them to fit their substrates precisely, and although flexible, they are not consumed in the process, but rather function as organic catalysts to increase reaction rates.

User Ananta Raha
by
8.5k points