CLASS AND VARIANT OF ENZYME-MCQ

Jef Marc Valencia · 73問 · 2年前

通報

問題一覧

Classifications of enzymes are based on_____of the enzyme

CATALYTIC ACTIVITY

The international union of biochemistry enzyme commission categorize enzyme to how many classes

What is the first class of enzyme

OXIDOREDUCTASE, OXIDASE, DEHYDROGENASE

Class of enzyme which catalyze oxidation reduction reactions via transfer of electron from one mole to another

OXIDOREDUCTASE

Class of enzyme assayed for investigation of cardiac and liver disorders

OXIDOREDUCTASE

Examples of oxidoreductase

GLUCOSE OXIDASE, CYTOCHROME OXIDASE, LACTATE DEHYDROGENASE

Donor of electron is also known as

OXIDANT

Recipient of electron is also known as

REDUCTANT

What is the second class of enzyme

TRANSFERASE

Class of enzyme move an intact group of atoms (NH2 or PO4) from one molecule to another

TRANSFERASE

Class of enzyme that gives information about liver damage

TRANSFERASE

Process in which a phosphate group is added to molecule

PHOSPHORYLATION

What are the examples of transferase

AST, ALT, CK

Class of enzyme which catalyzes the hydrolysis of various chemical bonds

HYDROLASE

Class of enzyme in which reactions utilizes water and it is used to break a bond within a molecule leading to the formation of two smaller molecules

HYDROLASE

What are the subclasses of hydrolase

ESTERASE, PEPTIDASE, GLYCOSIDASE

Subclass of hydrolase in which hydrolyzed or catalyzed ester bonds or lipid molecules

ESTERASE

Sunglass of hydrolase which hydrolyzes peptide bonds in proteins and peptides

PEPTIDASE, PROTEASE

Subclass of hydrolase which hydrolyzes glycosidic bonds in carbohydrates

GLYCOSIDASE

Examples of glycosidase

AMYLASE, AMYLO-1,6-GLUCOSIDASE

Examples of peptidase

LEUCINE AMINOPEPTIDASE, PEPSIN

Examples of esterase

ACID PHOSPHATASE, ALKALINE PHOSPHATASE, TRIACYLGLYCEROL LIPASE

Class of enzyme which catalyzes the breaking of various chemical bonds without the use of water and without oxidation and reduction

LYASE

Lyase often result in the formation of a _______ or ____ structure in the molecule

DOUBLE BOND, NEW RING

Class of enzyme that are acid in the diagnosis of cellular muscle disorder

LYASE

Splits fructose-1, 6-biphosphate into two smaller sugar

ALDOLASE

Class of enzyme that catalyze the conversion of molecule into one of its isomers which is a molecule with the same chemical formula but different structural arrangement

ISOMERASE

Which class of enzyme is reversible reaction

ISOMERASE

The class of enzyme which involves intramolecular rearrangement not addition or removal of atoms and its substrate and product have identical molecular formulas but differ in structure or spatial arrangement

ISOMERASE

The type of isomer reaction which geometric isomers of alkenes or cyclic compounds

CIS-TRANS ISOMERISM

The type of isomer reaction which amino acids and sugars changing chirality

L-D ISOMERISM

An example of alldose-ketose conversion which function is to convert G6P to become F6P

GLUCOSE PHOSPHATE ISOMERASE

What is the third class of enzyme

HYDROLASE

What is the fourth class of enzyme

LYASE

What is the fifth class of enzyme

ISOMERASE

What is the six class of enzyme

LIGASE

Class of enzyme which catalyze the joining or delegation of two molecules typically using energy derived from atp hydrolysis to form a larger more complex

LIGASE

Ligase enzyme reactions are typically_____building up molecules

ANABOLIC

Ligase enzyme reactions requires energy input usually in the form

ATP

Ligase enzyme which joins dna strands during replication and repair

DNA LIGASE

Ligase enzyme which attaches amino acids to the corresponding trna

AMINOACYL-TRNA SYNTHETASE

Ligase enzyme which adds carbon dioxide to pyruvate in gluconeogenesis

PYRUVATE CARBOXYLASE

What is the first class of enzyme

OXIDOREDUCTASE, OXIDASE, DEHYDROGENASE

Converts glutamate to GABA which removes carbon dioxide

GLUTAMATE DECARBOXYLASE

Converts pyruvate to acetaldehyde + CO2

PYRUVATE DECARBOXYLASE

Refers to the different forms of the same enzyme that exist in an organism

ENZYME VARIANT

Structurally distinct forms of an enzyme that catalyzes the same reaction

ISOENZYME, ISOZYME

Isoenzyme are usually____multimeric proteins composed of different combinatios of subunits

MULTICHAINED

Isoenzymes are often differ in

AMINO ACID COMPOSITION, KINETIC PROPERTIES, PHYSICAL PROPERTIES

Km is also known as

MICHAELIS CONSTANT

Kinetic properties of isoenzymes are measured in

KM, VMAX

Physical properties of isoenzymes are measured in

ELECTROPHORETIC MOBILITY, PH STABILITY

Enzyme used to differentiate liver Vs bone disease

ALKALINE PHOSPHATASE

Enzyme used to assess pancreatic disorder

AMYLASE

Characteristics of isoenzyme which differ in net charge and size affecting how they migrate in an electric field

ELECTROPHORETIC MOBILITY

Characteristics of isoenzyme which binds differently due to variation in surface charge, allowing for fractionation and identification

ION EXCHANGE RESIN MOBILITY

Enzymes of similar catalytic activity but are specie specific

HETEROENZYME

Importance of heteroenzyme

COMPARATIVE ENZYMOLOGY, IMMUNOLOGIC STUDY, THERAPEUTIC DEVELOPMENT

Used to differentiate RBC ACP and Prostatic ACP

2% FORMALIN

Which ACP inhibit 2% formalin

RBC ACP

Genetically transmitted enzyme important in defining biochemical characteristics of an individual

ALLOENZYME

Stable and active generally secreted by the liver directly to the plasma

PLASMA SPECIFIC ENZYME

Examples of plasma specific enzyme

COAGULATION ENZYME, COMPLEMENT ENZYME, LIPOPROTEIN LIPASE

Enzymes mostly originated from cells or tissues, and their presence in plasma is typically due to cell injury, secretion, or turnover

NON PLASMA SPECIFIC ENZYME

Secreted into plasma at high rate but also rapidly cleared

ENZYME OF SECRETION

Examples of enzyme of secretion

AMYLASE, LIPASE

Perform metabolic functions inside the cells where they are synthesized and usually released into plasma only when cells are damaged orr undergo necrosis

ENZYME ASSOCIATED WITH CELLULAR METABOLISM

Examples of enzyme associated with cellular metabolism

ALT, AST

Enzymes that are found in only one specific cellular location and involved in cytosolic metabolism such as alkaline phosphatase

UNILOCULAR ENZYME

Enzymes that are distributed in 2 distinct cellular compartments

BILOCULAR ENZYME

Location of unilocular enzyme

CELL SAP

Location of bilocular enzyme

CELL SAP, MITOCHONDRIA

Enzyme kinetics which is unchanges acts as catalyst

ENZYME

Enzyme kinetics which is temporary intermediate

ENZYME SUBSTRATE COMPLEX

Enzyme kinetics which is molecule acted upon

SUBSTRATE

Enzyme kinetics which is transformed substrate

PRODUCT

Enzyme responsible for clot formation

SERINE PROTEASE

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dis 5

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Introduction

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