Download 5.10-5.15 review - PRISMS Honors biology 2015-2016

5.10-5.15 REVIEW
Honors
Biology 20152016
DO NOW
Describe the general process of how
enzymes work. Be as descriptive as
possible and mention all relevant key
terms.
5.10-5.15 GROUP
REVIEW
Are you
ready? 
NAME 5 FACTORS THAT AFFECT THE SPEED
OF AN ENZYME-CATALYZED REACTION
A)
B)
C)
D)
light energy to chemical energy
chemical energy to kinetic energy
light energy to potential energy
heat to light energy
WHICH OF THE FOLLOWING DIRECT ENERGY
TRANSFERS IS IMPOSSIBLE IN LIVING
SYSTEMS?
A)
B)
C)
D)
light energy to chemical energy
chemical energy to kinetic energy
light energy to potential energy
heat to light energy
A) Its synthesis is endergonic.
B) Extremely stable bonds link the second
and third phosphate groups.
C) It is a type of nucleic acid.
D) It releases energy when one phosphate
group leaves ATP.
E) ADP is more stable than ATP
WHICH OF THE FOLLOWING STATEMENTS
REGARDING ATP ARE TRUE?
(THERE MAY BE MORE THAN ONE RIGHT ANSWER)
A) Its synthesis is endergonic.
B) Extremely stable bonds link the second
and third phosphate groups.
C) It is a type of nucleic acid.
D) It releases energy when one phosphate
group leaves ATP.
E) ADP is more stable than ATP
A new stomach enzyme is discovered. It is inhibited by a
molecule that mimics its substrate and displaces the location
where the substrate normally binds.
a) Which colored curve demonstrates the reaction rate
of this enzyme with its inhibitor?
b) Draw a graph of this enzyme’s predicted pH v. activity
curve.
A) Competitive inhibitors interfere with the enzyme;
noncompetitive inhibitors interfere with the reactants.
A) Competitive inhibitors change the enzyme's tertiary
structure; noncompetitive inhibitors cause polypeptide
subunits to dissociate.
A) Competitive inhibitors bind to the active site of the
enzyme; noncompetitive inhibitors bind to a different
site.
A) None of the above
HOW DOES INHIBITION OF AN ENZYME -CATALYZED
REACTION BY A COMPETITIVE INHIBITOR DIFFER FROM
INHIBITION BY A NONCOMPETITIVE INHIBITOR?
A) Competitive inhibitors interfere with the enzyme;
noncompetitive inhibitors interfere with the reactants.
A) Competitive inhibitors change the enzyme's tertiary
structure; noncompetitive inhibitors cause polypeptide
subunits to dissociate.
A) Competitive inhibitors bind to the active site of the
enzyme; noncompetitive inhibitors bind to a different
site.
A) None of the above
A) the burning of wood
B) the synthesis of glucose from carbon
dioxide and water
C) the breakdown of glucose
D) cellular respiration
WHICH OF THE FOLLOWING PROCESSES
IS ENDERGONIC?
A) the burning of wood
B) the synthesis of glucose from carbon
dioxide and water
C) the breakdown of glucose
D) cellular respiration
WHAT IS
WHAT IS
Energy coupling?
A) breaking the covalent bonds that hold
the molecule together.
B) removing phosphate groups from the
enzyme.
C) causing enzyme molecules to stick
together.
D) changing the enzyme's threedimensional shape.
HEATING INACTIVATES ENZYMES BY
A) breaking the covalent bonds that hold
the molecule together.
B) removing phosphate groups from the
enzyme.
C) causing enzyme molecules to stick
together.
D) changing the enzyme's threedimensional shape.
A) Thermodynamics is the study of energy
transformations that occur in a collection
of matter.
B) A single cell or the planet Earth could be a
thermodynamic system.
C) An open system exchanges both energy
and matter with its surroundings.
D) An automobile engine is a closed system
because it does not exchange energy and
matter with its surroundings.
WHICH OF THE FOLLOWING STATEMENTS
REGARDING THERMODYNAMICS IS FALSE?
A) Thermodynamics is the study of energy
transformations that occur in a collection
of matter.
B) A single cell or the planet Earth could be a
thermodynamic system.
C) An open system exchanges both energy
and matter with its surroundings.
D) An automobile engine is a closed system
because it does not exchange energy and
matter with its surroundings.