The iron containing nonporphyrin is (A) Hemosiderin (B) Catalase (C) Cytochrome C (D) Peroxidase

The iron containing nonporphyrin is (A) Hemosiderin (B) Catalase (C) Cytochrome C (D) Peroxidase
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All of the following are iron-containing enzymes except (A) Carbonic anhydrase (B) Catalase (C) Peroxidase (D) Cytochrome oxidase

Description : All of the following are iron-containing enzymes except (A) Carbonic anhydrase (B) Catalase (C) Peroxidase (D) Cytochrome oxidase

Last Answer : Answer : A

The pentose phosphate pathway protects erythrocytes against hemolysis by assisting the enzyme: (A) Superoxide dismutase (B) Catalase (C) Glutathionic peroxidase (D) Cytochrome oxidase ENZYMES 149

Description : The pentose phosphate pathway protects erythrocytes against hemolysis by assisting the enzyme: (A) Superoxide dismutase (B) Catalase (C) Glutathionic peroxidase (D) Cytochrome oxidase ENZYMES 149

Last Answer : Answer : C

Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase

Description : Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase

Last Answer : Answer : B

Hydrogen peroxide may be detoxified in the absence of an oxygen acceptor by (A) Peroxidase (B) Catalase (C) Both (A) and (B) (D) None of these

Description : Hydrogen peroxide may be detoxified in the absence of an oxygen acceptor by (A) Peroxidase (B) Catalase (C) Both (A) and (B) (D) None of these

Last Answer : Answer : B

Which enzyme is tested for cream pasteurization? a. Plasmin b. Phosphates c. Catalase d. peroxidase

Description : Which enzyme is tested for cream pasteurization? a. Plasmin b. Phosphates c. Catalase d. peroxidase

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Copper is associated with _____ mitochondria' enzymes. (1) Cytochrome oxidase (2) Succinic dehydrogenase (3) Catalase (4) Acid phosphatase

Description : Copper is associated with _____ mitochondria' enzymes. (1) Cytochrome oxidase (2) Succinic dehydrogenase (3) Catalase (4) Acid phosphatase

Last Answer : (1) Cytochrome oxidase Explanation: Copper is involved in normalized function of many enzymes, such as cytochrome oxidase, which is complex IV in mitochondrial electron ... transportation, antioxidant and free radical scavenging and neutralization, and neurotransmitter synthesis, respectively.

Copper is associated with ____ mitochondrial enzymes. (1) Cytochrome oxidase (2) Succinic dehydrogenase (3) Catalase (4) Acid phosphatase

Description : Copper is associated with ____ mitochondrial enzymes. (1) Cytochrome oxidase (2) Succinic dehydrogenase (3) Catalase (4) Acid phosphatase

Last Answer : Cytochrome oxidase

The following reaction is characteristic of what type of enzymes? 2H2O2 → 2H2O + O2 (A) Peroxides (B) Catalase (C) Dehydrogenase (D) Copper containing oxidases

Description : The following reaction is characteristic of what type of enzymes? 2H2O2 → 2H2O + O2 (A) Peroxides (B) Catalase (C) Dehydrogenase (D) Copper containing oxidases

Last Answer : Answer : B

Iron is present in all the following except (A) Peroxidase (B) Xanthine oxidase (C) Aconitase (D) Fumarase

Description : Iron is present in all the following except (A) Peroxidase (B) Xanthine oxidase (C) Aconitase (D) Fumarase

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Iron-pophyrin is present as prosthetic group in (A) Cytochromes (B) Catalases (C) Peroxidase (D) None of these

Description : Iron-pophyrin is present as prosthetic group in (A) Cytochromes (B) Catalases (C) Peroxidase (D) None of these

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A copper containing cytochrome is (A) Cytochrome a (B) Cytochrome P-450 (C) Cytochrome a3 (D) None of these

Description : A copper containing cytochrome is (A) Cytochrome a (B) Cytochrome P-450 (C) Cytochrome a3 (D) None of these

Last Answer : Answer : C

A copper containing oxidase is (A) Cytochrome oxidase (B) Flavin mononucleotide (C) Flavin adenine dinucleotide (D) Xanthine oxidase

Description : A copper containing oxidase is (A) Cytochrome oxidase (B) Flavin mononucleotide (C) Flavin adenine dinucleotide (D) Xanthine oxidase

Last Answer : Answer : A

A molybdenum containing oxidase is (A) Cytochrome oxidase (B) Xanthine oxidase (C) Glucose oxidase (D) L-Amino acid oxidase

Description : A molybdenum containing oxidase is (A) Cytochrome oxidase (B) Xanthine oxidase (C) Glucose oxidase (D) L-Amino acid oxidase

Last Answer : Answer : B

Selenium is a constituent of the enzyme: (A) Glutathione peroxidase (B) Homogentisate oxidase (C) Tyrosine hydroxylase (D) Phenylalanin hydroxylase

Description : Selenium is a constituent of the enzyme: (A) Glutathione peroxidase (B) Homogentisate oxidase (C) Tyrosine hydroxylase (D) Phenylalanin hydroxylase

Last Answer : Answer : A

Formation of melanin from tyrosine requires the action of (A) Dopa decarboxylation (B) Diamine oxidase (C) Peroxidase (D) Tyrosinase

Description : Formation of melanin from tyrosine requires the action of (A) Dopa decarboxylation (B) Diamine oxidase (C) Peroxidase (D) Tyrosinase

Last Answer : Answer : D

Cytochrome is (a) metallo flavo protein (b) Fe containing porphyrin pigment (c) glycoprotein (d) lipid.

Description : Cytochrome is (a) metallo flavo protein (b) Fe containing porphyrin pigment (c) glycoprotein (d) lipid.

Last Answer : (b) Fe containing porphyrin pigment

Enzyme catalase has non-protein metal asA-magnesium B-manganese C-iron D-zinc

Description : Enzyme catalase has non-protein metal asA-magnesium B-manganese C-iron D-zinc

Last Answer : iron

The following are the functions of copper: (A) Constituent of cytochromes (B) Catalase (C) Tyrosinase (D) All of these

Description : The following are the functions of copper: (A) Constituent of cytochromes (B) Catalase (C) Tyrosinase (D) All of these

Last Answer : Answer : D

The enzymes present in the membrane of mitochondria are (A) Flavoproteins and cytochromes (B) Fumarase and lipase (C) Enolase and catalase (D) Hexokinase and zymase

Description : The enzymes present in the membrane of mitochondria are (A) Flavoproteins and cytochromes (B) Fumarase and lipase (C) Enolase and catalase (D) Hexokinase and zymase

Last Answer : Answer : A

An enzyme which uses hydrogen acceptor as substrate is (A) Xanthine oxidase (B) Aldehyde oxidase (C) Catalase (D) Tryptophan oxygenase

Description : An enzyme which uses hydrogen acceptor as substrate is (A) Xanthine oxidase (B) Aldehyde oxidase (C) Catalase (D) Tryptophan oxygenase

Last Answer : Answer : C

Oxaloacetate is converted to aspartic acid by (A) Reductase (B) Oxidase (C) Transminase (D) Catalase

Description : Oxaloacetate is converted to aspartic acid by (A) Reductase (B) Oxidase (C) Transminase (D) Catalase

Last Answer : Answer : C

The α-ketoacid is decarboxylated by H2O2 forming a carboxylic acid with one carbon atom less in the absence of the enzyme: (A) Catalase (B) Decarboxylase (C) Deaminase (D) Phosphatase

Description : The α-ketoacid is decarboxylated by H2O2 forming a carboxylic acid with one carbon atom less in the absence of the enzyme: (A) Catalase (B) Decarboxylase (C) Deaminase (D) Phosphatase

Last Answer : Answer : A

The example of chromoprotein: (A) Salmine (B) Catalase (C) Zein (D) Gliadin

Description : The example of chromoprotein: (A) Salmine (B) Catalase (C) Zein (D) Gliadin

Last Answer : Answer : B

The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as A-lipase B- .lysozyme C- .pectinaseD-.peroxidase

Description : The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as A-lipase B- .lysozyme C- .pectinase D-.peroxidase

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Which of the following liquids is not suitable for prolonged immersion of cobalt chrome partial dentures: A. Alkaline peroxidase B. Hypochlorite solutions C. Soap solutions D. Water

Description : Which of the following liquids is not suitable for prolonged immersion of cobalt chrome partial dentures: A. Alkaline peroxidase B. Hypochlorite solutions C. Soap solutions D. Water

Last Answer : B. Hypochlorite solutions

Which one of the following statements about cytochrome P450 is wrong? (a) It is a coloured cell. (b) It is an enzyme involved in oxidation reactions. (c) It has an important role in metabolism. (d) It contains iron

Description : Which one of the following statements about cytochrome P450 is wrong? (a) It is a coloured cell. (b) It is an enzyme involved in oxidation reactions. (c) It has an important role in metabolism. (d) It contains iron

Last Answer : (a) It is a coloured cell.

In photosystem I, the first electron acceptor is (a) an iron-sulphur protein (b) ferredoxin (c) cytochrome (d) plastocyanin.

Description : In photosystem I, the first electron acceptor is (a) an iron-sulphur protein (b) ferredoxin (c) cytochrome (d) plastocyanin.

Last Answer : (a) an iron-sulphur protein

The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is (a) iron-sulphur protein(b) ferredoxin (c) quinone (d) cytochrome.

Description : The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is (a) iron-sulphur protein(b) ferredoxin (c) quinone (d) cytochrome.

Last Answer : (c) quinone

Superoxide radicals can be detoxified by (A) Cytochrome c (B) Superoxide dismutase (C) Both (A) and (B) (D) None of these

Description : Superoxide radicals can be detoxified by (A) Cytochrome c (B) Superoxide dismutase (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

Which of the following component of respiratory chain is not attached to the inner mitochondrial membrane? (A) Coenzyme Q (B) Cytochrome c (C) Both (A) and (B) (D) None of these

Description : Which of the following component of respiratory chain is not attached to the inner mitochondrial membrane? (A) Coenzyme Q (B) Cytochrome c (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

Superoxide radicals can be detoxified by (A) Cytochrome c (B) Cytochrome b (C) Cytochrome a (D) None of these

Description : Superoxide radicals can be detoxified by (A) Cytochrome c (B) Cytochrome b (C) Cytochrome a (D) None of these

Last Answer : Answer : A

The compound having the lowest redox potential amongst the following is (A) Hydrogen (B) NAD (C) Cytochrome b (D) Cytochrome a

Description : The compound having the lowest redox potential amongst the following is (A) Hydrogen (B) NAD (C) Cytochrome b (D) Cytochrome a

Last Answer : Answer : A

Activity of cytochrome oxidase is inhibited by (A) Sulphite (B) Sulphate (C) Arsenite (D) Cyanide

Description : Activity of cytochrome oxidase is inhibited by (A) Sulphite (B) Sulphate (C) Arsenite (D) Cyanide

Last Answer : Answer : D

One of the site of phsosphorylation in mitochondrial respiratory chain is (A) Between FMN and coenzyme Q (B) Between coenzyme Q and cyt b (C) Between cytochrome b and cytochrome c1 (D) Between cytochrome c1 and cytochrome c

Description : One of the site of phsosphorylation in mitochondrial respiratory chain is (A) Between FMN and coenzyme Q (B) Between coenzyme Q and cyt b (C) Between cytochrome b and cytochrome c1 (D) Between cytochrome c1 and cytochrome c

Last Answer : Answer : C

The correct sequence of cytochrome carriers in respiratory chain is (A) Cyt b—cyt c—cyt c1—cyt aa3 (B) Cyt aa3— cyt b—cyt c—cyt c1 (C) Cyt b—cyt c1—cyt c—cyt aa3 (D) Cyt b—cyt aa3—cyt c1— cyt c

Description : The correct sequence of cytochrome carriers in respiratory chain is (A) Cyt b—cyt c—cyt c1—cyt aa3 (B) Cyt aa3— cyt b—cyt c—cyt c1 (C) Cyt b—cyt c1—cyt c—cyt aa3 (D) Cyt b—cyt aa3—cyt c1— cyt c

Last Answer : Answer : C

Cytochrome oxidase contains (A) Cu2+ and Zn2+ (B) Cu2+ and Fe2+ (C) Cu2+ and Mn2+ (D) Cu2+

Description : Cytochrome oxidase contains (A) Cu2+ and Zn2+ (B) Cu2+ and Fe2+ (C) Cu2+ and Mn2+ (D) Cu2+

Last Answer : Answer : B

Redox potential (EO volts) of cytochrome C, Fe3+/Fe2+ is (A) –0.29 (B) –0.27 (C) –0.08 (D) +0.22

Description : Redox potential (EO volts) of cytochrome C, Fe3+/Fe2+ is (A) –0.29 (B) –0.27 (C) –0.08 (D) +0.22

Last Answer : Answer : D

The oxidation-reduction system having the highest redox potential is (A) Ubiquinone ox/red (B) Fe3+ cytochrome a/Fe2+ (C) Fe3+ cytochrome b/Fe2+ (D) NAD+/NADH

Description : The oxidation-reduction system having the highest redox potential is (A) Ubiquinone ox/red (B) Fe3+ cytochrome a/Fe2+ (C) Fe3+ cytochrome b/Fe2+ (D) NAD+/NADH

Last Answer : Answer : B

An example of feedback inhibition is (A) Allosteric inhibition of hexokinase by glucose6-phosphate (B) Cyanide action on cytochrome (C) Sulpha drug on folic acid synthesizer bacteria (D) Reaction between succinic dehydrogenase and succinic acid

Description : An example of feedback inhibition is (A) Allosteric inhibition of hexokinase by glucose6-phosphate (B) Cyanide action on cytochrome (C) Sulpha drug on folic acid synthesizer bacteria (D) Reaction between succinic dehydrogenase and succinic acid

Last Answer : Answer : A

ω-oxidation is normally a very minor pathway and is brought by hydroxylase enzymes involving (A) Cytochrome a (B) Cytochrome b (C) Cytochrome c (D) Cytochrome p-450

Description : ω-oxidation is normally a very minor pathway and is brought by hydroxylase enzymes involving (A) Cytochrome a (B) Cytochrome b (C) Cytochrome c (D) Cytochrome p-450

Last Answer : Answer : C

The enzyme using some other substance, not oxygen as hydrogen acceptor is (A) Tyrosinase (B) Succinate dehydrogenase (C) Uricase (D) Cytochrome oxidase

Description : The enzyme using some other substance, not oxygen as hydrogen acceptor is (A) Tyrosinase (B) Succinate dehydrogenase (C) Uricase (D) Cytochrome oxidase

Last Answer : Answer : B

An enzyme catalyzing oxidoreduction, using oxygen as hydrogen acceptor is (A) Cytochrome oxidase (B) Lactate dehydrogenase (C) Malate dehydrogenase (D) Succinate dehydrogenase

Description : An enzyme catalyzing oxidoreduction, using oxygen as hydrogen acceptor is (A) Cytochrome oxidase (B) Lactate dehydrogenase (C) Malate dehydrogenase (D) Succinate dehydrogenase

Last Answer : Answer : A

Example of an extracellular enzyme is (A) Lactate dehydrogenase (B) Cytochrome oxidase (C) Pancreatic lipase (D) Hexokinase

Description : Example of an extracellular enzyme is (A) Lactate dehydrogenase (B) Cytochrome oxidase (C) Pancreatic lipase (D) Hexokinase

Last Answer : Answer : C

Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome A (B) Panthyroid hormone (C) Cytochrome b (D) cAMP

Description : Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome A (B) Panthyroid hormone (C) Cytochrome b (D) cAMP

Last Answer : Answer : B

Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome - a (B) Parathyroid hormone (C) Cytochrome-b (D) CAMP

Description : Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome - a (B) Parathyroid hormone (C) Cytochrome-b (D) CAMP

Last Answer : Answer : B

ω-oxidation takes place by the hydroxylase in microsomes involving (A) Cytochrome b (B) Cytochrome c (C) Cytochrome p-4500(D) Cytochrome a3

Description : ω-oxidation takes place by the hydroxylase in microsomes involving (A) Cytochrome b (B) Cytochrome c (C) Cytochrome p-4500(D) Cytochrome a3

Last Answer : Answer : C

An uncoupler of oxidative phosphorylation such as dinitrophenol (A) Inhibits electron transport and ATP synthesis (B) Allow electron transport to proceed without ATP synthesis (C) Inhibits electron transport without impairment of ATP synthesis (D) Specially inhibits cytochrome b

Description : An uncoupler of oxidative phosphorylation such as dinitrophenol (A) Inhibits electron transport and ATP synthesis (B) Allow electron transport to proceed without ATP synthesis (C) Inhibits electron transport without impairment of ATP synthesis (D) Specially inhibits cytochrome b

Last Answer : B

Which of the following is located in the mitochondria? (A) Cytochrome oxidase (B) Succinate dehydrogenase (C) Dihydrolipoyl dehydrogenase (C) All of these

Description : Which of the following is located in the mitochondria? (A) Cytochrome oxidase (B) Succinate dehydrogenase (C) Dihydrolipoyl dehydrogenase (C) All of these

Last Answer : D

How can pH affect catalase activity Design an experiment to test your hypothesis. Ask your teacher for comments on your design. If necessary revise the procedure. Carry out your experiment and be sure?

Description : How can pH affect catalase activity Design an experiment to test your hypothesis. Ask your teacher for comments on your design. If necessary revise the procedure. Carry out your experiment and be sure?

Last Answer : Need answer

In today's experiment what was one method that you used to denature the catalase?

Description : In today's experiment what was one method that you used to denature the catalase?

Last Answer : Need answer