Lecture 2 Flashcards
(25 cards)
Oxidation reactions have __________ energy than reduction reactions.
Less
Going from ATP to ADP is an __________ reaction.
Exergonic
__________ is the energy required to initiate a chemical reaction.
Activation Energy
The __________ of an exergonic reaction depends on the activation energy required.
Rate
Rate can be increased in two ways:
Increasing energy if reacting molecules (heating)
Lowering activation energy
On a graph, activation energy is represented as a __________.
Peak
A __________ lowers activation energy.
Catalyst
True or false. A catalyst cannot make an endergonic reaction spontaneous.
True
True or false? Catalysts do not alter the ratio of reactants to products.
True
__________ are catalysts.
Enzymes
Most enzymes are __________.
Proteins
Enzymes stabilize association between __________.
Substrates
True or false? Enzymes are changed or consumed in reactions.
False
An __________ is a pocket or cleft used for substrate binding.
Active site
Active sites stress and distort particular bonds to __________ activation energy.
Reduce
The reaction rate of an enzyme depends on the __________ and __________.
Substrate
Functional Enzyme
Enzymes can be actively __________.
Inhibited
A __________ inhibitor competes with substrate for active site.
Competitive
A non competitive inhibitor is __________.
Allosteric
A __________ is all the chemical reactions in an organism.
Metabolism
__________ reactions use energy to make larger molecules.
Anabolic
__________ reactions harvest energy by breaking down molecules.
Catabolic
Reactions occur in a __________.
Sequence
The product for one reactions is the __________ for the next reaction.
Reactant (substrate)
