Enzymes having slightly different molecular structure but performing identical activity are………
a) holoenzyme
b) isoenzyme
c) coenzyme
d) apoenzyme
Enzyme Nomenclature:
Many enzymes but not all end in the suffix”………”.
a) tis
b) ase
c) ess
d) aze
Explanation: exceptions are pepsin and trypsin
Which of the following is/are the basis for the nomenclature of enzymes?
a) the substrate they act on
b) the action they perform
c) both a and b
d) none of these
Explanation: e.g. lipase (on lipids) and hydrolase (hydrolysis action )
Enzymes are classified into….categories.
a) two
b) three
c) four
d) six
Explanation: oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases
The enzymes which are involve in various types of oxidation-reduction reactions are ……….
a) hydrolases
b) lyases
c) oxidoreductase
d) transferases
