AP- BIOLOGY – ENZYMES EXAM Q&A
active site - ANSWER-the location on the enzyme where the substrate binds and
goes through a chemical reaction.
activation energy - ANSWER-Eₐ is the abbreviation used for the energy required to
start a reaction.
sucrase - ANSWER-An enzyme that catalyzes the hydrolysis of sucrose into glucose
and fructose
Catalase - ANSWER-an enzyme found in most aerobic organisms that breaks down
H2O2 to water and oxygen
amylase - ANSWER-Enzyme that can break the bonds of starch to form the
carbohydrate monomer, glucose.
lipase - ANSWER-Enzyme that can break the bonds of lipids to form the monomer,
fatty acids.
protease - ANSWER-Enzyme that can break the polypeptide bonds of proteins to
form the monomer, amino acids.
nuclease - ANSWER-Enzyme that can break the bonds of nucleic acids to form
monomer, nucleotides
activated complex - ANSWER-the structure that is made up of the substrate bonded
to the active site of the enzyme.
lock and key hypothesis - ANSWER-The substrate fits the active site of the enzyme
like a key fits in a lock. There is no change to the shape of the enzyme or substrate.
induced fit hypothesis - ANSWER-The active site of the enzyme is flexible and
conforms to fit the substrate like a glove fits on a hand.
Denature - ANSWER-Characteristic of proteins; a change in shape that stops the
protein from functioning.
Allosteric - ANSWER-__________ regulation of enzyme occurs when a molecule
binds to an enzyme changing the protein's shape
Catalyst - ANSWER-______ an agent that speeds up a chemical reaction without
itself being permanently altered
G - ANSWER-An exergonic reaction releases free energy. The abbreviation for free
energy is: Named after the American Scientist Josiah Gibbs
active site - ANSWER-the location on the enzyme where the substrate binds and
goes through a chemical reaction.
activation energy - ANSWER-Eₐ is the abbreviation used for the energy required to
start a reaction.
sucrase - ANSWER-An enzyme that catalyzes the hydrolysis of sucrose into glucose
and fructose
Catalase - ANSWER-an enzyme found in most aerobic organisms that breaks down
H2O2 to water and oxygen
amylase - ANSWER-Enzyme that can break the bonds of starch to form the
carbohydrate monomer, glucose.
lipase - ANSWER-Enzyme that can break the bonds of lipids to form the monomer,
fatty acids.
protease - ANSWER-Enzyme that can break the polypeptide bonds of proteins to
form the monomer, amino acids.
nuclease - ANSWER-Enzyme that can break the bonds of nucleic acids to form
monomer, nucleotides
activated complex - ANSWER-the structure that is made up of the substrate bonded
to the active site of the enzyme.
lock and key hypothesis - ANSWER-The substrate fits the active site of the enzyme
like a key fits in a lock. There is no change to the shape of the enzyme or substrate.
induced fit hypothesis - ANSWER-The active site of the enzyme is flexible and
conforms to fit the substrate like a glove fits on a hand.
Denature - ANSWER-Characteristic of proteins; a change in shape that stops the
protein from functioning.
Allosteric - ANSWER-__________ regulation of enzyme occurs when a molecule
binds to an enzyme changing the protein's shape
Catalyst - ANSWER-______ an agent that speeds up a chemical reaction without
itself being permanently altered
G - ANSWER-An exergonic reaction releases free energy. The abbreviation for free
energy is: Named after the American Scientist Josiah Gibbs
