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(4) Enzymes

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

Enzymes are protein catalysts involved in the regulation of…

Back (Answer)

biochemical reactions in metabolic pathways.

#2
Front (Question)

Enzymes increase…

Back (Answer)

the rate of reaction without being altered or consumed during a reaction.

#3
Front (Question)

Enzymes ___ the activation energy of a reaction.

Back (Answer)

Lower.

#4
Front (Question)

Role of oxidoreductases.

Back (Answer)

Catalyze oxidation-reduction reactions.

#5
Front (Question)

Role of transferases.

Back (Answer)

Catalyze group transfer of C, N, or P containing groups.

#6
Front (Question)

Role of hydrolases.

Back (Answer)

Catalyze cleavage bonds by the addition of water.

#7
Front (Question)

Role of lyases.

Back (Answer)

Catalyze cleavage of C-C, C-S, & certain C-N bonds, lysis generating a double bond.

#8
Front (Question)

Role of isomerases.

Back (Answer)

Catalyze optical or geometric isomers, rearrangements.

#9
Front (Question)

Role of ligases.

Back (Answer)

Catalyze the formation of bonds between C, O, S, N; coupled of hydrolysis of high energy phosphates (ATP required).

#10
Front (Question)

Reference range of AST.

Back (Answer)

5 - 30 U/L.

#11
Front (Question)

Reference range of ALT.

Back (Answer)

6 - 37 U/L.

#12
Front (Question)

Reference range of CPK.

Back (Answer)

15 - 160 U/L (slightly lower in females).

#13
Front (Question)

Reference range of GGT.

Back (Answer)

6 - 45 U/L (slightly lower for females).

#14
Front (Question)

Reference range of LDH.

Back (Answer)

Forward: 100-225 U/L. Reverse: 80 - 290 U/L.

#15
Front (Question)

Reference range of ALP.

Back (Answer)

30 - 90 U/L.

#16
Front (Question)

Reference range of AMY.

Back (Answer)

95 - 290 U/L.

#17
Front (Question)

State the enzyme class for each of the following analytes: AST, ALT, CK, GGT

Back (Answer)

Transferases.

#18
Front (Question)

State the enzyme class for each of the following analytes: LDH, G-6-PD

Back (Answer)

Oxidoreductase.

#19
Front (Question)

State the enzyme class for each of the following analytes: PChE, AMY, LIP, ALP, ACP

Back (Answer)

Hydrolases

#20
Front (Question)

State the enzyme class for each of the following analytes: ALD

Back (Answer)

Lyase.

#21
Front (Question)

State the optimal pH for the following analyte: Amylase

Back (Answer)

6.9 - 7.0

#22
Front (Question)

State the optimal pH for the following analyte: ALP

Back (Answer)

10

#23
Front (Question)

State the optimal pH for the following analyte: ACP

Back (Answer)

5.0

#24
Front (Question)

State the optimal pH for the following analyte: Lipase

Back (Answer)

8.6 - 9.0