Enzymes Flashcards

1
Q

Oxidoreductase

A

Alcohol dehydrogenase

Lactate dehydrogenase

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2
Q

Transferase

A

Hexokinase

Transaminase

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3
Q

Hydrolases

A

Lipase
Trypsin
Pepsin

(Triacylglycerol ———> 1,2 diacylglycerol + fatty acid)

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4
Q

Lyases

A

Aldolase
Fumarase

Fructose 16….———-> DHAP

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5
Q

Isomerase

A

Triose phosphate isomerase

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6
Q

Ligases

A

Glutamine synthetase

Acetyl CoA carboxylase

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7
Q

Competitive inhibition

A

Malonate and oxalate are inhibitors of succinic dehydrogenase

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8
Q

Non competitive inhibition

A

Fluoride inhibits enolase

Cyanide inhibits cytochrome oxidase

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9
Q

Uncompetitive inhibition

A

Placental alkaline phosphotase inhibited by phenylalanine

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10
Q

Suicide inhibition

A

Allopurinol is oxidised by xanthine oxidase to alloxanthane

Used to treat gouty arthritis

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11
Q

Feedback inhibition

A

Heme , ala synthetase

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12
Q

Induction

A

Insulin induces glucokinase

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13
Q

Repression

A

Cholesterol synthesis inhibited by inhibiting HMG CoA

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14
Q

Covalent modification

A

Glycogen synthase

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15
Q

Compartmentation

A

Fatty acid synthesis — cytosol

B oxidation — mitochondria

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16
Q

Compartmentation

A

Fatty acid synthesis — cytosol

B oxidation — mitochondria