MODULE 2- MICROBIOLOGY PORTAGE
LEARNING 2026/2027 ACTUAL
QUESTIONS WITH VERIFIED ANSWERS.
Six major categories of enzymes
Hydrolase - catalyzes hydrolysis - the cleavage or breaking
apart of chemical bonds by the addition of water. (Ie. A-B +
H2O -> A-OH + B-H)
Isomerase - promotes intramolecular rearrangements by
altering bonds and/or confirmations within the same molecule
producing a different molecule having the same molecular
formula, aka an isomer. (Ie. A-B -> B-A)
Ligase - causes covalent bonds to be formed between
molecules (ie. A + B -> A-B)
Lyase - causes the cleavage (break) of bonds by means other
than hydrolysis or oxidation (A-B -> A + B)
Oxidoreductase - catalyzes the transfer of electrons from the
reductant (electron donor) to the oxidant (electron acceptor).
(A- + B -> A + B)
Transferase- acts to transfer a specific functional group from
one molecule to another (Ab + C -> A + Cb)
Hydrolase
An enzyme that catalyzes hydrolysis - the cleavage or breaking
apart of chemical bonds by the addition of water. ( ie. A-B +
H2O -> A-OH + B-H)
Isomerase
, An enzyme that rearranges bonds within a molecule to form an
isomer ( ie. A-B -> B-A)
Ligase
An enzyme that causes covalent bonds to be formed between
molecules (ie. A + B -> A-B)
Lyase
An enzyme that cleaves the bonds of atoms without hydrolysis (
ie. A-B -> A + B)
Oxidoreductase
An enzyme that catalyzes the transfer of electrons from the
reductant (electron donor) to the oxidant (electron acceptor). (
ie. A- + B -> A + B)
Transferase enzymes
Acts to transfer a specific functional group (ie. The amino or
phosphate group) from one molecule to another (Ab + C -> A +
Cb)
Active site of an enzyme
The region of an enzyme that attaches to a substrate
ATP has the energy to ________ , while ADP has the
capacity to ________ energy.
Donate, accept
What is the difference between catabolism and anabolism?
Catabolism is the process of breaking down larger molecules
into useful energy sources.
Anabolism is the building up or biosynthesis of macromolecules
LEARNING 2026/2027 ACTUAL
QUESTIONS WITH VERIFIED ANSWERS.
Six major categories of enzymes
Hydrolase - catalyzes hydrolysis - the cleavage or breaking
apart of chemical bonds by the addition of water. (Ie. A-B +
H2O -> A-OH + B-H)
Isomerase - promotes intramolecular rearrangements by
altering bonds and/or confirmations within the same molecule
producing a different molecule having the same molecular
formula, aka an isomer. (Ie. A-B -> B-A)
Ligase - causes covalent bonds to be formed between
molecules (ie. A + B -> A-B)
Lyase - causes the cleavage (break) of bonds by means other
than hydrolysis or oxidation (A-B -> A + B)
Oxidoreductase - catalyzes the transfer of electrons from the
reductant (electron donor) to the oxidant (electron acceptor).
(A- + B -> A + B)
Transferase- acts to transfer a specific functional group from
one molecule to another (Ab + C -> A + Cb)
Hydrolase
An enzyme that catalyzes hydrolysis - the cleavage or breaking
apart of chemical bonds by the addition of water. ( ie. A-B +
H2O -> A-OH + B-H)
Isomerase
, An enzyme that rearranges bonds within a molecule to form an
isomer ( ie. A-B -> B-A)
Ligase
An enzyme that causes covalent bonds to be formed between
molecules (ie. A + B -> A-B)
Lyase
An enzyme that cleaves the bonds of atoms without hydrolysis (
ie. A-B -> A + B)
Oxidoreductase
An enzyme that catalyzes the transfer of electrons from the
reductant (electron donor) to the oxidant (electron acceptor). (
ie. A- + B -> A + B)
Transferase enzymes
Acts to transfer a specific functional group (ie. The amino or
phosphate group) from one molecule to another (Ab + C -> A +
Cb)
Active site of an enzyme
The region of an enzyme that attaches to a substrate
ATP has the energy to ________ , while ADP has the
capacity to ________ energy.
Donate, accept
What is the difference between catabolism and anabolism?
Catabolism is the process of breaking down larger molecules
into useful energy sources.
Anabolism is the building up or biosynthesis of macromolecules
