Vocabulary
Law of Thermodynamics
Energy
ATP
Regulation of enzyme activity
100
these inhibitors bind to another part of an enzyme, causing the enzyme to change shape and making the active site less effective
What is noncompetitive inhibitors
100
the study of energy transformations
What is Thermodynamics
100
the capacity to cause change
What is energy
100
a renewable resource that is regenerated by addition of a phosphate group to ADP
What is ATP
100
Most allosterically regulated enzymes are made from
What is polypeptide subunits
200
a chemical agent that speeds up a reaction without being consumed by the reaction
What is a catalyst
200
energy and matter can be transferred between the system and its surroundings
What is an open system
200
the energy of the motion of objects.
What is kinetic energy
200
In the cell, the energy from the exergonic reactions of ATP hydrolysis can be used to drive what kind of reactions?
What is endergonic reactions
200
would result if a cell’s metabolic pathways were not tightly regulated
What is chemical chaos
300
these inhibitors bind to the active site of an enzyme, competing with the substrate
What is competitive inhibitors
300
every energy transfer or transformation increases the entropy (disorder) of the universe
What is the second law of thermodynamics
300
potential energy available in a chemical reaction
What is chemical energy
300
The bonds between the phosphate groups of ATP’s tail can be broken by _______
What is hydrolysis
300
does the binding of an inhibitor or activator stabilize the inactive form of the enzyme?
What is inhibitor
400
a form of allosteric regulation that can amplify enzyme activity
What is Cooperativity
400
According to this law, the energy of the universe is constant. Energy can be transferred and transformed but cannot be created or destroyed (also called the principle of conservation of energy)
What is First law of thermodynamics
400
energy that matter possesses because of its location or structure
What is potential energy
400
How is ATP regenerated?
What is by addition of a phosphate group to ADP
400
the end product of a metabolic pathway shuts down the pathway
What is feedback inhibition
500
the term used to describe cases where a protein’s function at one site is affected by binding of a regulatory molecule at another site
What is Allosteric regulation
500
Organisms are what kind of systems?
What is an open system
500
the kinetic energy associated with the random movement of atoms or molecules
What is heat
500
The energy to phosphorylate ADP comes from _____ in the cell
What is catabolic reactions
500
binding by a substrate to one active site stabilizes favorable conformational changes at all other subunits
What is Cooperativity
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