5.2 Flashcards

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1
Q

what are the two major components that make up a reaction

A

reactants –> products

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2
Q

what happens when a chemical reaction occurs

A

energy is either released or absorbed

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3
Q

what does exothermic mean

A

when energy is released from the molecules

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4
Q

what does endothermic mean

A

when energy is absorbed into the molecules

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5
Q

chemical reactions speed up by

A

lowering the activation energy

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6
Q

what is an active site

A

area of an enzyme where reactants bind to enzyme

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7
Q

what is the lock and key theory

A

only reactants/substrates can fit

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8
Q

enzymes are specific to the reaction that they catalyze and are based on what

A

the shape of the reactant and active site

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9
Q

enzymes can be reused after what

A

catalyzing a reaction and are not changed by the reaction

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10
Q

what are enzymes named after (-ase, in)

A

the substrate/chemical reaction after its calayzed

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11
Q

enzymes can help create a big molecule or

A

break down a big molecule

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12
Q

substrates can only activate an enzyme once they

A

bind to the enzymes activation site

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13
Q

what is activation energy

A

the amount of energy needed to start the reaction

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14
Q

catalyst

A

a substance in general that makes something go faster

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15
Q

enzyme

A

a catalyst that speeds up a reaction by lowering the activation energy

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16
Q

hump of curve

A

activation energy

17
Q

if end of line is lower than start

A

exothermic

18
Q

if end of line is higher than start

A

endothermic

19
Q

what are the 3 things enzymes do

A

speed up reactions, lower activation energy, only works because of their unique shape

20
Q

enzymes can be affected by changes in

A

pH and temperature

21
Q

if the change is great enough

A

the enzyme can be destroyed

22
Q

denature/denaturing

A

the process of an enzyme/protein being destroyed, often
because the shape of the enzyme is changed because of a drastic change in temperature