Question

What is the name of the class of enzymes that would catalyze each of the following reactions? (a) hydrolysis of sucrose O hydrolase isomerase lyase oxidoreductase transferase (b) moving an amino group from one molecule to another hydrolase somerase lyase oxidoreductase transferase (c) addition of oxygen hydrolase isomerase lyase oxidoreductase transferase (d) removing hydrogen atoms hydrolasee isomerase lyase oxidoreductasee transferase

Answer 1

a) Hydrolase is an enzyme that catalyzes the hydrolysis of a chemical bond. For example, an enzyme that catalyzes the following reaction is a hydrolase: A–B + H₂O ? A–OH + B–H.

b)Transferase, any one of a class of more than 450 enzymes that catalyze the transfer of various chemical groups (other than hydrogen) from one compound to another. Transaminases, for example, catalyze the transfer of an amino group (?NH₂) from an amino acid to an a-keto acid.

c)Oxidoreductases catalyze reactions similar to this example: A– + B ? A + B– where A is the oxidant and B is the reductant. Oxidorecuctases can be oxidases or dehydrogenases. Oxidases are enzymes involved when molecular oxygen acts as an acceptor of hydrogen or electrons.

d)Oxidoreductase, any member of a class of enzymes, commonly known as dehydrogenases or oxidases, that catalyse. Oxidoreductases catalyze reactions similar to the following, A^– + B ? A + B^– where A is the oxidant and B is the reductant the removal of hydrogen atoms and electrons from the compounds on which they act.