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BIochem > Enzymes > Flashcards

Enzymes Flashcards

1
Q

Inc rate of rxn

A

Enzyme

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2
Q

Reactant aka

A

Substrate

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3
Q

Regulated frm a state of low activity to high activity & vice versa

A

Enzymes

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4
Q

Most enzymes are

A

Proteins

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5
Q

Peptide component aka

A

Apoenzyme

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6
Q

Cofactor aka

A

Coenzyme

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7
Q

Combined functional unit aka

A

Holoenzyme

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8
Q

Cofactor is

A

Non-peptide component

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9
Q

Cofactors that are tightly bound to the polypeptide

A

Prosthetic groups

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10
Q

Proteins w/o prosthetic groups

A

Simple proteins

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11
Q

Prosthetic groups are

A

Complex/conjugated proteins

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12
Q

Inactive form of apoenzyme

A

Proenzyme/Zymogen

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13
Q

Proenzyme aka

A

Zymogen

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14
Q

Contain several amino acids in the protein w/c are removed & allows the final specific tertiary structure to be formed before it is activated as an apoenzyme

A

Proenzyme/Zymogen

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15
Q

Common coenzymes eg

A

Vitamins

Metal ions

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16
Q

Metal ions used in enzymes as cofactors

A 
Zn
Mg
Mn
Fe
Cu
K
Na
17
Q

Tightly incorporated into protein struct by covalent/ noncovalent forces

A

Prosthetic groups

18
Q

Prosthetic groups eg

A

Deriv of Vit B

19
Q

FMN

A

Flavin mononucleotide

20
Q

FAD

A

Flavin adenine dinucleotide

21
Q

Pyridoxal phosphate

A

Prosthetic groups

22
Q

Thiamin pyrophosphate

A

Prosthetic groups

23
Q

Biotin

A

Prosthetic groups

24
Q

Metal ions Prosthetic groups

A 
Co
Cu
Mg
Mn
Zn
25
Q

Enzymes that contain tightly bound metal ions

A

Metalloenzymes

26
Q

6 Major classes of enzymes

A 
Oxidoreductase
Hydrolases
Isomerases
Transferases
Lyases
Ligases
27
Q

Breaks down starch

A

Amylase

28
Q

Breaks down fibers

A

Cellulase

29
Q

Breaks down dairy products

A

Lactase

30
Q

Breaks down fats

A

Lipase

31
Q

Breaks down grains

A

Maltase

32
Q

Breaks down proteins

A

Protease

33
Q

Breaks down sugars

A

Sucrase

BIochem (14 decks)

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