AP BIOLOGY

BIOCHEMISTRY

ENZYMES AND METABOLISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The enzymes that do not follow the enzyme nomenclature are
A
those enzymes that was discovered before the systematic naming system were introduced.
B
those enzymes that was undiscovered before the systematic naming system were introduced.
Explanation: 

Detailed explanation-1: -Systematic names consist of two parts. The first contains the name of the substrate or, in the case of a bimolecular reaction, of the two substrates separated by a colon. The second part, ending in-ase, indicates the nature of the reaction.

Detailed explanation-2: -According to the International Union of Biochemists (I U B), enzymes are divided into six functional classes and are classified based on the type of reaction in which they are used to catalyze. The six kinds of enzymes are hydrolases, oxidoreductases, lyases, transferases, ligases and isomerases.

Detailed explanation-3: -An enzyme will interact with only one type of substance or group of substances, called the substrate, to catalyze a certain kind of reaction. Because of this specificity, enzymes often have been named by adding the suffix “-ase” to the substrate’s name (as in urease, which catalyzes the breakdown of urea).

Detailed explanation-4: -Which of the following is a systematic name given by enzyme commission? Explanation: International Union of Biochemistry appointed an “Enzyme commission” to provide proper systematic way of naming and classifying the enzymes. The commission assigned each enzyme a systematic name and a 4-digit code.

There is 1 question to complete.