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Biochemistry II > Enzymes! > Flashcards

Enzymes! Flashcards

1
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires a phosphorylated enzyme

A

Phosphoglycerate mutase

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2
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a substrate-level phosphorylation

A

Phosphoglycerate kinase

Pyruvate kinase

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3
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that involves making and breaking carbon-carbon bonds

A

Aldolase

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4
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires NAD+ as a cosubstrate

A

Glyceraldehyde-3-phosphate dehydrogenase

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5
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes an aldo-keto isomerization

A

Phosphohexoisomerase

Triose phosphate isomerase

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6
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reversible dehydration reaction

A

Enolase

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7
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction requiring biotin

A

pyruvate carboxylase

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8
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes reaction requiring ATP

A

Hexokinase

Phosphohexoisomerase

Pyruvate carboxylase

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9
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes reaction requiring GTP

A

Phosphoenolpyruvate carboxykinase

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10
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes an irreversible step in glycolysis

A

Hexokinase

Phosphofructokinase-1

Pyruvate kinase

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11
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes an irreversible step in gluconeogenesis

A

Pyruvate carboxylase

Phosphoenolpyruvate carboxykinase

Fructose-1,6-bisphosphatase

Glucose-6-phosphatase

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12
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that often employs a Schiff base mechanism

A

Aldolase (glycolysis)

Transaldolase (PPP)

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13
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires NADH

A

Lactate dehydrogenase (lactic acid fermentation)

Alcohol dehydrogenase (alcoholic fermentation)

Glyceraldehyde-3-phosphate dehydrogenase (gluconeogenesis)

Malatae dehydrogenase (gluconeogenesis)

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14
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes an irreversible dehydration reaction

A

Fructose-1,6-bisphosphatase

Glucose-6-phosphatase

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15
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes the decarboxylation of an alpa-keto acid

A

Pyruvate decarboxylase

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16
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes the decarboxylation of a beta-keto acid

A

6-phosphogluconate dehydrogenase (PPP)

17
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes reactions requiring NADP+

A

Glucose-6-phosphaste dehydrogenase (PPP)

6-phosphogluconate dehydrogenase (PPP)

18
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes an ester hydrolysis

19
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes an aldo-keto isomerization in the pentose phosphate pathway

A

Phosphopentoisomerase

20
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes the formation of an epimer

21
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes the transfer of a two-carbon units from a keto donor to an aldo receptor via TPP

A

Transketolase

22
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that produces a “high-energy” compound

A

Glyceraldehyde-3-phosphate dehydrogenase

Enolase

23
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires lysine and aspartate residues and a water molecule

24
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires a cysteine residue, NAD+, and an inorganic phosphate

A

Glyceraldehyde-3-phosphate dehydrogenase

25
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires deprotonated and phosphorylated histidine residues

A

Phosphoglycerate mutase

26
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires lysine and glutamic acid residues

27
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a reaction that requires Zn2+

A

Alcohol dehydrogenase

28
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a decarboxylation reaction that requires thiamine pyrophosphate

A

Pyruvate decarboxylase

29
Q

Identify the enzyme or enzymes that accomplish the following:

Catalyzes a redox reaction in lactic acid fermentation

A

Lactase dehydrogenase

Biochemistry II (19 decks)

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