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47 Cards in this Set

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The kind of reaction where ATP is made.
Catabolic
Making ATP
phosphorylation
The kind of reaction where breaking proteins down into their amino acids
catabolic
The kind of reaction where ATP is used.
anabolic
The kind of reaction where amino acids are used to make proteins.
anabolic
More disorder, always increasing, unable to do work
entropy
The heat content of a system
enthalpy
Total E of a sytem that can do work under constant temperature and pressure
Gib;s Free
Endothermic or Exothermic? Heat is transferred from object to its surroundings.
exothermic
Endothermic or Exothermic? Heat is absorbed into an object from its surroundings.
endothermic
Exergonic or endergonic? Spontaneous reaction
exergonic
Exergonic or endergonic? Not sponteaneous reactions
endergonic
Exergonic or endogonic? energy released
exergonic
Exergonic or endogonic? requires energy
endergonic
Exergonic or endogonic? Products have less free energy than reactants
exergonic
Exergonic or endogonic? ATP->ADP+Pi
exergonic
Exergonic or endogonic? Phosphorylation
endergonic
ADP+Pi->ATP
endergonic
How do enzymes affect a reaction?
They increase the rate of reaction
Why is an ATP molecule important in metabolism?
It has high-energy phosphate bonds
A measure of disorder of a system
entropy
If products are more disordered than reactant entropy increases or decreases?
increases
If products are more disordered than reactant entropy increases or decreases?
decreases
When proeteins are made from amino acids entropy increases or decreases?
decreases
disorder tends to increase or decrease?
increase
When relative concentrations of two reactants are such that forward and reverse reactions take place at the same rate.
chemical equilibrium
Endergonic or exergonic? cell respriration
exergonic
Endergonic or exergonic? cell movement
endergonic
Endergonic or exergonic? active transport
endergonic
What are two kinds of biological catylysts?
enzymes and ribozymes
The energy needed before exergonic reactions can procede.
activation energy
What kind of bonding can hold enzyme substrate complexes together?
ionic, hydrogen, covalent
Enzymes catalyze reactions using one or more of the following mechanisms:
Orienting substrates
Adding charges to substrates
Inducing strain in the substrates
The total energy of a sytem
enthalpy
Usable energy that can do work
free energy
Unusable energy
entropy
What are 3 products or ADP+H2O?
ADP, Pi and free energy
process that makes atp
hydrolysis
Substances that speed up a reaction without being permanently changed.
catalysts
unstable molecular forms created by activation energy
transition-state species
The reactants in an enzyme catalyzed reaction
substrates
The part on the enzyme where catalysis takes place
active site
A change in enzyme shape cause by subtrate binding.
an induced fit
Inorganic ions that bind to certain enzymes and are essential to their function
cofactors
carbon containing molecules that temporarily bind to an enzyme to help it react
coenzymes
groups that are permanently bound to enzymes
prothetic groups
enzymes that catalyze the same reaction but have different chemical composition and physical properties
isozymes