Description : Mitochondrial superoxide dismutase contains (A) Zinc (B) Copper (C) Magnesium (D) Manganese
Last Answer : Answer : D
Description : The mitochondrial superoxide dismutase contains (A) Mg++ (B) Mn++ (C) Co++ (D) Zn++
Last Answer : Answer : B
Description : A mitochondrial marker enzyme is (A) Aldolase (B) Amylase (C) Succinic dehydrogenase (D) Pyruvate dehydrogenase ENZYMES 175
Last Answer : Answer : C
Description : Zn is present as prosthetic group in this enzyme: (A) Carbonic anhydrase (B) Carboxy peptidase (C) Lactate dehydrogenase (D) All of these
Description : Carbonic anhydrase enzyme has maximum turn over number (36 million). Minimum turn over number for an enzyme: (A) DNA polymerase (B) Lysozyme (C) Penicillase (D) Lactase dehydrogenase
Description : Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase
Description : An example of competitive inhibition of an enzyme is the inhibition of a. Succinic dehydrogenase by malonic acid b. Cytochrome oxidase by cyanide c. Hexokinase by glucose-6-phosphate d. Carbonic anhydrase by carbon dioxide
Last Answer : Ans: A
Description : The cytosolic superoxide dismutase enzyme contains (A) Cu2+ (B) Cu2+ and Zn2+ (C) Zn2+ (D) Mn2+
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
Description : All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is (a) isocitrate dehydrogenase (b) malate dehydrogenase (c) succinate dehydrogenase (d) lactate dehydrogenase.
Last Answer : (c) succinate dehydrogenase
Description : All of the following are zinc-containing enzymes except (A) Acid Phosphatase (B) Alkaline Phosphatase (C) Carbonic anhydrase (D) RNA polymerase
Last Answer : Answer : A
Description : In which one of the following enzymes, is copper necessarily associated as an activator? (a) Carbonic anhydrase (b) Tryptophanase (c) Lactic dehydrogenase (d) Tyrosinase
Last Answer : (d) Tyrosinase
Description : Cytosolic superoxide dismutase contains (A) Zn only (B) Cu only (C) Zn and Cu (D) Mn
Description : Superoxide radicals can be detoxified by (A) Cytochrome c (B) Superoxide dismutase (C) Both (A) and (B) (D) None of these
Description : Cytosolic superoxide dismutase contains (A) Cu2+ and Zn2+ (B) Mn2+ (C) Mn2+ and Zn2+ (D) Cu2+ and Fe2+
Description : Identify one of the canbonic anhydrase inhibitor that inhibit only luminal carbonic anhydrase enzyme. (A) Methazolamide (B) Acetazolamide (C) Dichlorphenamide(D) Benzolamide
Description : Hemolytic anemia is caused by the deficiency of certain enzymes of the pentose phosphate pathway, the principal enzyme involved is (A) Glucose-6-phosphate dehydrogenase (B) Aldolase (C) Fructose 1, 6-bisphosphatase (D) Phosphohexose isomerase
Description : The following enzyme is required for the hexose monophosphate shunt pathway: (A) Glucose-6-phosphatase (B) Phosphorylase (C) Aldolase (D) Glucose-6-phosphate dehydrogenase
Last Answer : D
Description : The enzyme that catalyses carbon dioxide fixation in C4 plants is (a) RuBP carboxylase (b) PEP carboxylase (c) carbonic anhydrase (d) carboxydismutase.
Last Answer : (b) PEP carboxylase
Description : The following is true of topiramate except: A. It is a broad spectrum antiepileptic drug B. It inhibits the enzyme carbonic anhydrase C. It is used as add-on therapy in refractory partial seizures D. It is not effective in generalized tonic-clonic seizures
Last Answer : D. It is not effective in generalized tonic-clonic seizures
Description : Calcium is required for the activation of the enzyme: (A) Isocitrate dehydrogenase (B) Fumarase (C) Succinate thiokinase (D) ATPase
Description : The enzyme using some other substance, not oxygen as hydrogen acceptor is (A) Tyrosinase (B) Succinate dehydrogenase (C) Uricase (D) Cytochrome oxidase
Description : An enzyme catalyzing oxidoreduction, using oxygen as hydrogen acceptor is (A) Cytochrome oxidase (B) Lactate dehydrogenase (C) Malate dehydrogenase (D) Succinate dehydrogenase
Description : NADPH is produced when this enzyme acts (A) Pyruvate dehydrogenase (B) Malic enzyme (C) Succinate dehydrogenase (D) Malate dehydrogenase
Description : An example of ligases is (A) Succinate thiokinase (B) Alanine racemase (C) Fumarase (D) Aldolase
Description : Metabolic alkalosis can occur in (A) Severe diarrhoea (B) Renal failure (C) Recurrent vomiting (D) Excessive use of carbonic anhydrase inhibitors
Description : Thiazide diuretics inhibit (A) Carbonic anhydrase (B) Aldosterone secretion (C) ADH secretion (D) Sodium reabsorption in distal tubules
Description : All of the following are iron-containing enzymes except (A) Carbonic anhydrase (B) Catalase (C) Peroxidase (D) Cytochrome oxidase
Description : Carbonic anhydrase is competitively inhibited by (A) Allopurinol (B) Acetazolamide (C) Aminopterin (D) Neostigmine
Description : Physostigmine is a competitive inhibitor of (A) Xanthine oxidase (B) Cholinesterase (C) Carbonic anhydrase (D) Monoamine oxidase
Description : All the following diuretics inhibit the carbonic anhydrase except (A) Acetazolamide (B) Bumetanide (C) Furosemide (D) Ethacrynic acid
Description : Carbonic anhydrase is an example of (A) Lipoprotein (B) Phosphoprotein (C) Metalloprotein (D) Chromoprotein
Description : Select the option which is not correct with respect to enzyme action. (a) Substrate binds with enzyme at its active site. (b) Addition of lot of succinate does not reverse the inhibition ... from that which binds the substrate. (d) Malonate is a competitive inhibitor of succinic dehydrogenase.
Last Answer : (b) Addition of lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate.
Description : Reducing equivalents from succinate enter the mitochondrial respiratory chain at (A) NAD (B) Coenzyme Q (C) FAD (D) Cyt c
Description : Which of the following statement `//` s is `//` are correct ? A- A high concentration of carbonic anhydrase is present in RBC. B- Minute quantities of
Last Answer : Which of the following statement `//` s is `//` are correct ? A- A high concentration of carbonic anhydrase is ... and D C. A,B,C and D D. Only A
Description : Assertion : Carbonic anhydrase is present in the erythrocytes. Reason : In erythrocytes the carbon dioxide combine with water and is transported.
Last Answer : Assertion : Carbonic anhydrase is present in the erythrocytes. Reason : In erythrocytes the carbon dioxide ... A is correct and statement B is wrong.
Description : Inhibition of carbonic anhydrase results in (a) Abolition of NaHCO3 reabsorption in proximal tubule (b) Enhanced of NaHCO3 reabsorption in proximal tubule (c) Enhanced NAHCO3 secretion in distal tubule (d) None of the above
Description : With regard to the transport of carbon dioxide in blood: a. 25% of carbon dioxide is dissolved in blood b. carbonic anhydrase is found in plasma c. 50% of carbon dioxide is carried as bicarbonate d. deoxygenated haemoglobin facilitates the transport of carbon dioxide
Last Answer : deoxygenated haemoglobin facilitates the transport of carbon dioxide
Description : Urine volume is increased with: a. carbonic anhydrase inhibitors b. hyperglycaemia c. increased aldosterone secretion d. damage to the posterior pituitary
Last Answer : damage to the posterior pituitary
Description : Carbonic anhydrase occurs in (a) lymphocytes (b) blood plasma (c) RBCs (d) leucocytes.
Last Answer : (c) RBCs
Description : Select the diuretic which is orally active, efficacious in acidosis as well as alkalosis, causes diuresis even in renal failure and has additional carbonic anhydrase inhibitory action: A. Mannitol B. Benzthiazide C. Indapamide D. Furosemide
Last Answer : D. Furosemide
Description : Select the correct statement abut donepezil: A. It is a topical carbonic anhydrase inhibitor used in glaucoma B. It is a catechol-'O'-methyl transferase inhibitor used as adjuvant in ... affords symptomatic improvement in Alzheimer's disease D. It is a synthetic cannabinoid with antiemetic property
Last Answer : C. It is a cerebroselective anticholinesterase that affords symptomatic improvement in Alzheimer's diseas
Description : Aldosterone enhances Na+ reabsorption in renal tubules by: A. Stimulating carbonic anhydrase B. Activating Na+ K+ ATPase C. Inducing the synthesis of Na+ K+ ATPase D. Inducing renal prostaglandin synthesis
Last Answer : C. Inducing the synthesis of Na+ K+ ATPase
Description : Dorzolamide is a: A. Topically applied ocular carbonic anhydrase inhibitor B. Second generation sulfonylurea hypoglycaemic C. Topical sulfonamide antibacterial D. Luminal amoebicide
Last Answer : A. Topically applied ocular carbonic anhydrase inhibitor
Description : An important zinc containing enzyme is (A) Carboxypeptidase A (B) Isocitrate dehydrogenase (C) Cholinesterate (D) Lipoprotein lipase
Description : Transfer of reducing equivalents from succinate dehydrogenase to coenzyme Q is specifically inhibited by (A) Carboxin (B) Oligomycin (C) Piericidin A (D) Rotenone
Description : A specific inhibitor for succinate dehydrogenase is (A) Arsenite (B) Malonate (C) Citrate (D) Fluoride
Description : The inhibition of succinate dehydrogenase by malonate by (A) Competitive inhibition (B) Non-competitive inhibition (C) Uncompetitive inhibition (D) Feedback inhibition
Description : Which of the following is not having an apoenzyme and coenzyme? (A) Lactate dehydrogenase (B) Succinate dehydrogenase (C) Malate dehydrogenase (D) Pepsin