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Honors Biology A > Unit 3 Concept 1 - Enzymes and Biochemical Reactions > Flashcards

Unit 3 Concept 1 - Enzymes and Biochemical Reactions Flashcards

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1
Q

metabolism

A

all of the chemical reactions within each cell of an organism

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2
Q

chemical reactions

A

the breaking and forming of bonds between different substances during chemical changes

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3
Q

catabolic

A

break down larger molecules into simpler compounds

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4
Q

anabolic

A

build larger molecules from smaller ones

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5
Q

activation energy

A

amount of energy needed to make a chemical reaction start

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6
Q

reactants

A

(substrate) substances that are charged during a chemical reaction

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7
Q

products

A

substances that are made by a chemical reaction

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8
Q

2 types of reactions

A

endothermic and exothermic

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9
Q

endothermic

A

absorbs energy (ie. photosynthesis)

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10
Q

exothermic

A

releases energy (ie. cellular respiration)

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11
Q

formula for photosynthesis

A

6CO2 + 6H20 yields C6H12O6 + 6O2

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12
Q

formula for cellular respiration

A

C6H12O6 + 6O2 yields 6CO2 + 6H20

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13
Q

enzymes

A

mostly proteins that speed up biochemical reactions by lowering the activation energy

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14
Q

catalysts

A

substances that speed up chemical reactions without being permanently altered

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15
Q

3 parts to a chemical reaction with an enzyme

A

substrate (reactant), active site, and enzyme

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16
Q

denaturation

A

enzymes active site gets deformed and loses its specific shape -> loss of biological activity

17
Q

5 ways to change the rate of a chemical reaction

A

temperature
pH
substrate concentration
catalysts
competitive inhibitor

18
Q

how does temperature change the rate of a chemical reaction?

A

increasing temperature increases rate of reaction

19
Q

how does pH change the rate of a chemical reaction?

A

how acidic a solution is

20
Q

how does substrate concentration change the rate of a chemical reaction?

A

higher the amount of substrate, the faster the reaction

21
Q

how does catalysts change the rate of a chemical reaction?

A

(like enzymes) speed up reactions

22
Q

how does a competitive inhibitor change the rate of a chemical reaction?

A

slows down reaction

Honors Biology A (9 decks)

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