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