What are the co-enzymes required for the reaction?

What are the co-enzymes required for the reaction?
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Biotin and ATP.
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What are the co-enzymes required for the conversion of propionyl CoA to succinyl CoA?

Description : What are the co-enzymes required for the conversion of propionyl CoA to succinyl CoA?

Last Answer : Biotin, ATP, Vitamin B12.

Enzymes are required in traces because they (A) Have high turnover number (B) Remain unused at the end of reaction and are re used (C) Show cascade effect (D) All correct

Description : Enzymes are required in traces because they (A) Have high turnover number (B) Remain unused at the end of reaction and are re used (C) Show cascade effect (D) All correct

Last Answer : Answer : D

If a coenzyme is required in an enzyme reaction, the former usually has the function of (A) Acting as an acceptor for one of the cleavage products of the substrate (B) Enhancing the specificity of the apo enzyme (C) Increasing the number of receptor sites of the apo enzyme (D) Activating the substrate ENZYMES 167

Description : If a coenzyme is required in an enzyme reaction, the former usually has the function of (A) Acting as an acceptor for one of the cleavage products of the substrate (B) Enhancing the specificity ... C) Increasing the number of receptor sites of the apo enzyme (D) Activating the substrate ENZYMES 167

Last Answer : Answer : A

Enzymes requiring NAD as co-substrate can be assayed by measuring change in absorbance at (A) 210 nm (B) 290 nm (C) 340 nm (D) 365 nm

Description : Enzymes requiring NAD as co-substrate can be assayed by measuring change in absorbance at (A) 210 nm (B) 290 nm (C) 340 nm (D) 365 nm

Last Answer : Answer : C

A demonstrable inducer is absent in (A) Allosteric enzyme (B) Constitutive enzyme (C) Inhibited enzyme (D) Co-operative enzyme ENZYMES 141

Description : A demonstrable inducer is absent in (A) Allosteric enzyme (B) Constitutive enzyme (C) Inhibited enzyme (D) Co-operative enzyme ENZYMES 141

Last Answer : Answer : B

In β−oxidation of fatty acids which of the following are utilized as co-enzymes? (A) NAD+ and NADP+ (B) FAD H2 and NADH + H+ (C) FAD and FMN (D) FAD and NAD+

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What are the co-enzymes needed for fatty acid oxidation?

Description : What are the co-enzymes needed for fatty acid oxidation?

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What are the co-enzymes necessary for oxidative decarboxylation of pyruvate?

Description : What are the co-enzymes necessary for oxidative decarboxylation of pyruvate?

Last Answer : Thiamine pyrophosphate, NAD, FAD, Lipoic acid, Co-enzyme A.

Give some examples of co-enzymes involved in reactions other than hydrogen transfer.

Description : Give some examples of co-enzymes involved in reactions other than hydrogen transfer.

Last Answer : Thiamine pyrophosphate, pyridoxal phosphate, biotin, co-enzyme A, ATP.

Give some examples of co-enzymes involved in oxidoreductases.

Description : Give some examples of co-enzymes involved in oxidoreductases.

Last Answer : NAD, NADP, FAD.

How are co-enzymes classified?

Description : How are co-enzymes classified?

Last Answer : (a) Those taking part in reactions catalysed by oxidoreductases by donating or accepting hydrogen atoms or electrons. (b) Those co-enzymes taking part in reactions transferring groups other than hydrogen.

What are co-enzymes?

Description : What are co-enzymes? 

Last Answer : Enzyme may contain a non-protein part, the coenzyme. The co-enzyme is essential for the biological activity of the enzyme. A co-enzyme is a low molecular weight organic substance, without which the ... reaction. Coenzyme accepts one of the products of the reaction; and so act as a co-substrate.

Which of the following is not required for any of the techniques of DNA fingerprinting available at present? (a) Restriction enzymes (b) DNA-DNA hybridisation (c) Polymerase chain reaction (d) Zinc finger analysis

Description : Which of the following is not required for any of the techniques of DNA fingerprinting available at present? (a) Restriction enzymes (b) DNA-DNA hybridisation (c) Polymerase chain reaction (d) Zinc finger analysis

Last Answer : (d) Zinc finger analysis

All the enzymes required for de novo synthesis of pyrimidine nucleotides are cytosolic except (A) Carbamoyl phosphate synthetase (B) Aspartate transcarbamoylase (C) Dihydro-orotase (D) Dihydro-orotate dehydrogenase

Description : All the enzymes required for de novo synthesis of pyrimidine nucleotides are cytosolic except (A) Carbamoyl phosphate synthetase (B) Aspartate transcarbamoylase (C) Dihydro-orotase (D) Dihydro-orotate dehydrogenase

Last Answer : Answer : D

In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core enzymes of RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Description : In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core ... RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Last Answer : Answer : C

In which of the following types of enzymes an inducer is not required? (A) Inhibited enzyme (B) Cooperative enzyme (C) Allosteric enzyme (D) Constitutive enzyme

Description : In which of the following types of enzymes an inducer is not required? (A) Inhibited enzyme (B) Cooperative enzyme (C) Allosteric enzyme (D) Constitutive enzyme

Last Answer : Answer : D

Coenzymes derived from the vitamin shown below are required by which of the following enzymes? (A) Lactate dehydrogenase (B) Glutamate dehydrogenase (C) Pyruvate dehydrogenase (D) Malate dehydrogenase

Description : Coenzymes derived from the vitamin shown below are required by which of the following enzymes? (A) Lactate dehydrogenase (B) Glutamate dehydrogenase (C) Pyruvate dehydrogenase (D) Malate dehydrogenase

Last Answer : Answer : C

Coenzymes derived from the vitamin shown below are required by enzymes involved in the synthesis of which of the following? (A) ATP (B) UTP (C) CTP (D) NADH

Description : Coenzymes derived from the vitamin shown below are required by enzymes involved in the synthesis of which of the following? (A) ATP (B) UTP (C) CTP (D) NADH

Last Answer : Answer : A

For biosynthesis of proteins (A) Amino acids only are required (B) Amino acids and nucleic acids only are required (C) Amino acid, nucleic acids and ATP only are required (D) Amino acids, nucleic acids, ATP, GTP, enzymes and activators are required

Description : For biosynthesis of proteins (A) Amino acids only are required (B) Amino acids and nucleic acids only are required (C) Amino acid, nucleic acids and ATP only are required (D) Amino acids, nucleic acids, ATP, GTP, enzymes and activators are required

Last Answer : Answer : D

Which is not true about inorganic catalysts and enzymes? (A) They are specific (B) Inorganic catalysts require specific not needed by enzymes (C) They are sensitive to pH (D) They speed up the rate of chemical reaction

Description : Which is not true about inorganic catalysts and enzymes? (A) They are specific (B) Inorganic catalysts require specific not needed by enzymes (C) They are sensitive to pH (D) They speed up the rate of chemical reaction

Last Answer : Answer : B

Template/lock and key theory of enzyme action is supported by (A) Enzymes speed up reaction (B) Enzymes occur in living beings and speed up certain reactions (C) Enzymes determine the direction of reaction (D) Compounds similar to substrate inhibit enzyme activity

Description : Template/lock and key theory of enzyme action is supported by (A) Enzymes speed up reaction (B) Enzymes occur in living beings and speed up certain reactions (C) Enzymes determine the direction of reaction (D) Compounds similar to substrate inhibit enzyme activity

Last Answer : Answer : D

Enzymes are different from catalysts in (A) Being proteinaceous (B) Not used up in reaction (C) Functional at high temperature (D) Having high rate of diffusion

Description : Enzymes are different from catalysts in (A) Being proteinaceous (B) Not used up in reaction (C) Functional at high temperature (D) Having high rate of diffusion

Last Answer : Answer : A

Enzymes increases the rate of reactions by (A) Increasing the free energy of activation (B) Decreasing the energy of activation (C) Changing the equilibrium constant of the reaction (D) Increasing the free energy change of the reaction

Description : Enzymes increases the rate of reactions by (A) Increasing the free energy of activation (B) Decreasing the energy of activation (C) Changing the equilibrium constant of the reaction (D) Increasing the free energy change of the reaction

Last Answer : Answer : B

Which of the following is not true regarding enzymes? (A) They catalyze only a particular type of reaction (B) They remain active even after separation from the source (C) They are destroyed after the completion of the reaction they catalyse (D) They are irreversibly destroyed at high temperature (E) Their activity depends on the pH of the solution

Description : Which of the following is not true regarding enzymes? (A) They catalyze only a particular type of reaction (B) They remain active even after separation from the source (C) They are destroyed ... They are irreversibly destroyed at high temperature (E) Their activity depends on the pH of the solution

Last Answer : Answer : C

Enzymes increase the rates of reactions by (A) Increasing the free energy of activation (B) Decreasing the energy of activation (C) Changing the equilibrium constant of the reaction (D) Increasing the free energy change of the reaction

Description : Enzymes increase the rates of reactions by (A) Increasing the free energy of activation (B) Decreasing the energy of activation (C) Changing the equilibrium constant of the reaction (D) Increasing the free energy change of the reaction

Last Answer : Answer : B

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

Enzymes accelerate the rate of reactions by (A) Increasing the equilibrium constant of reactions (B) Increasing the energy of activation (C) Decreasing the energy of activation (D) Decreasing the free energy change of the reaction

Description : Enzymes accelerate the rate of reactions by (A) Increasing the equilibrium constant of reactions (B) Increasing the energy of activation (C) Decreasing the energy of activation (D) Decreasing the free energy change of the reaction

Last Answer : Answer : C

Isoenzymes can be characterized by (A) Proteins lacking enzymatic activity that are necessary for the activation of enzymes (B) Proteolytic enzymes activated by hydrolysis (C) Enzymes with identical primary structure (D) Similar enzymes that catalyse different reaction

Description : Isoenzymes can be characterized by (A) Proteins lacking enzymatic activity that are necessary for the activation of enzymes (B) Proteolytic enzymes activated by hydrolysis (C) Enzymes with identical primary structure (D) Similar enzymes that catalyse different reaction

Last Answer : Answer : B

Arrhenius equation K = Ae-E a / R T In some reactions, Rate of reaction is directly proportional to. Concentration of catalyst Catalyst used in Bio-Chemical reactions is called. Enzymes Reactions catalyzed by light are called as. Photo catalyzed or Photosensitised reactions

Description : Arrhenius equation K = Ae-E a / R T In some reactions, Rate of reaction is directly proportional to. Concentration of catalyst Catalyst used in Bio-Chemical reactions is called. Enzymes Reactions catalyzed by light are called as. Photo catalyzed or Photosensitised reactions

Last Answer : Define order of reaction

Vitamin function as a. Co-enzymes b. Co-melecules c. Building blocks of cell d. None of these

Description : Vitamin function as a. Co-enzymes b. Co-melecules c. Building blocks of cell d. None of these

Last Answer : Ans: C

Boron in green plants assists in (a) activation of enzymes (b) acting as enzyme co-factor (c) photosynthesis (d) sugar transport.

Description : Boron in green plants assists in (a) activation of enzymes (b) acting as enzyme co-factor (c) photosynthesis (d) sugar transport.

Last Answer : (d) sugar transport.

Which of the following statements is correct with reference to enzymes? (a) Holoenzyme = Apoenzyme + Coenzyme (b) Coenzyme = Apoenzyme + Holoenzyme (c) Holoenzyme = Coenzyme + Co-factor (d) Apoenzyme = Holoenzyme + Coenzyme

Description : Which of the following statements is correct with reference to enzymes? (a) Holoenzyme = Apoenzyme + Coenzyme (b) Coenzyme = Apoenzyme + Holoenzyme (c) Holoenzyme = Coenzyme + Co-factor (d) Apoenzyme = Holoenzyme + Coenzyme

Last Answer : a) Holoenzyme = Apoenzyme + Coenzyme

Prosthetic groups differ from co-enzymes in that (a) they require metal ions for their activity (b) they (prosthetic groups) are tightly bound to apoenzymes (c) their association with apoenzymes is transient (d) they can serve as co-factors in a number of enzyme-catalyzed reactions.

Description : Prosthetic groups differ from co-enzymes in that (a) they require metal ions for their activity (b) they (prosthetic groups) are tightly bound to apoenzymes (c) their association with apoenzymes is transient (d) they can serve as co-factors in a number of enzyme-catalyzed reactions.

Last Answer : (b) they (prosthetic groups) are tightly bound to apoenzymes

The major role of minor elements inside living organisms is to act as (a) co-factors of enzymes (b) building blocks of important amino acids (c) constituent of hormones (d) binder of cell structure.

Description : The major role of minor elements inside living organisms is to act as (a) co-factors of enzymes (b) building blocks of important amino acids (c) constituent of hormones (d) binder of cell structure.

Last Answer : (a) co-factors of enzymes

Which one of the following statements is correct , with reference to enzymes ? (1) Holoenzyme = Apoenzyme + Coenzyme (2) Coenzyme = Apoenzyme + Holoenzyme (3) Holoenzyme = Coenzyme + Co-factor (4) Apoenzyme = Holoenzyme + Coenzyme

Description : Which one of the following statements is correct , with reference to enzymes ? (1) Holoenzyme = Apoenzyme + Coenzyme (2) Coenzyme = Apoenzyme + Holoenzyme (3) Holoenzyme = Coenzyme + Co-factor (4) Apoenzyme = Holoenzyme + Coenzyme

Last Answer : (1) Holoenzyme = Apoenzyme + Coenzyme

Substance which increase the activity of certain enzymes called (a) Pro-enzyme (b) Iso-enzymes (d) Co-enzymes (d) Catalysis

Description : Substance which increase the activity of certain enzymes called (a) Pro-enzyme (b) Iso-enzymes (d) Co-enzymes (d) Catalysis

Last Answer : c

For the activity of amylase which of the following is required as co-factor? (A) HCO3 (B) Na+ (C) K+ (D) Cl

Description : For the activity of amylase which of the following is required as co-factor? (A) HCO3 (B) Na+ (C) K+ (D) Cl

Last Answer : Answer : D

A sigmoidal plot of substrate concentration ([S]) verses reaction velocity (V) may indicate (A) Michaelis-Menten kinetics (B) Co-operative binding (C) Competitive inhibition (D) Non-competitive inhibition

Description : A sigmoidal plot of substrate concentration ([S]) verses reaction velocity (V) may indicate (A) Michaelis-Menten kinetics (B) Co-operative binding (C) Competitive inhibition (D) Non-competitive inhibition

Last Answer : Answer : B

Which one of the following statements concerning glucose metabolism is correct? (A) The conversion of Glucose to lactate occurs only in the R.B.C (B) Glucose enters most cells by a mechanism in which Na+ and glucose are co-transported (C) Pyruvate kinase catalyses an irreversible reaction (D) An elevated level of insulin leads to a decreased level of fructose 2, 6-bisphosphate in hepatocyte

Description : Which one of the following statements concerning glucose metabolism is correct? (A) The conversion of Glucose to lactate occurs only in the R.B.C (B) Glucose enters most cells by a mechanism in ... ) An elevated level of insulin leads to a decreased level of fructose 2, 6-bisphosphate in hepatocyte

Last Answer : C

Pyruvate carboxylase reaction (pyruvate to oxaloacetate) needs which co-enzyme?

Description : Pyruvate carboxylase reaction (pyruvate to oxaloacetate) needs which co-enzyme?

Last Answer : Biotin and ATP.

The enzymes required to obtain wall-free/naked protoplasts are

Description : The enzymes required to obtain wall-free/naked protoplasts are

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Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes? (a) Bioreactor (b) BOD incubator (c) Sludge digester (d) Industrial oven

Description : Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes? (a) Bioreactor (b) BOD incubator (c) Sludge digester (d) Industrial oven

Last Answer : (a) Bioreactor

Explain enzymes with the type of reaction they catalyse. -Biology

Description : Explain enzymes with the type of reaction they catalyse. -Biology

Last Answer : answer:

A scientist wants to make a dna fingerprint and she used polymerase chain reaction and restriction enzymes what should her next step be?

Description : A scientist wants to make a dna fingerprint and she used polymerase chain reaction and restriction enzymes what should her next step be?

Last Answer : use restriction enzymes is the right answer for apex :)

A scientist wants to make a dna fingerprint and she used polymerase chain reaction and restriction enzymes what should her next step be?

Description : A scientist wants to make a dna fingerprint and she used polymerase chain reaction and restriction enzymes what should her next step be?

Last Answer : use restriction enzymes is the right answer for apex :)

Regulator gene controls chemical synthesis (Operon concept) by (a) Inhibiting transcription of mRNA (b) Inhibiting enzymes (c) Inhibiting passage of mRNA (d) Inhibiting substrate enzyme reaction

Description : Regulator gene controls chemical synthesis (Operon concept) by (a) Inhibiting transcription of mRNA (b) Inhibiting enzymes (c) Inhibiting passage of mRNA (d) Inhibiting substrate enzyme reaction

Last Answer : Ans. ((a))

The catalytic power of enzymes is due to (a) the presence of amino acids in their structures (b) their high molecular weight (c) their ability to lower the activation energy of the reaction (d) their limited solubility in water and other solvents

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Last Answer : Ans:(c)

Genes control (a) Protein synthesis but not heredity (b) Protein synthesis and heredity (c) Heredity but not protein synthesis (d) Biochemical reaction of some enzymes

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Stroma in the chloroplasts of higher plant contains (a) light-dependent reaction enzymes (b) ribosomes (c) chlorophyll (d) light-independent reaction enzymes.

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Last Answer : d) light-independent reaction enzymes.

Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in (A) Blood (B) Saliva (C) Intestine (D) Gland

Description : Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in (A) Blood (B) Saliva (C) Intestine (D) Gland

Last Answer : (B) Saliva