Description : Cofactor (Prosthetic group) is a part of holoenzyme, it is (A) Inorganic part loosely attached (B) Accessory non-protein substance attached firmly (C) Organic part attached loosely (D) None of these
Last Answer : Answer : B
Description : $ In conjugated proteins, the protein molecule is joined to a non proteins group called prosthetic group. ! Nucleproteins are a type of conjugated pro
Last Answer : $ In conjugated proteins, the protein molecule is joined to a non proteins group called prosthetic group. ! ... wrong D. If both As and R are wrong.
Description : Glycoproteins are marked for destruction by removal of their (A) Oligosaccharide prosthetic group (B) Sialic acid residues (C) Mannose residues (D) N-terminal amino acids
Last Answer : Answer : D
Description : The half-life of a protein depends upon its (A) Signal sequence (B) N-terminus amino acid (C) C-terminus amino acid (D) Prosthetic group
Description : Zn is present as prosthetic group in this enzyme: (A) Carbonic anhydrase (B) Carboxy peptidase (C) Lactate dehydrogenase (D) All of these
Description : Iron-pophyrin is present as prosthetic group in (A) Cytochromes (B) Catalases (C) Peroxidase (D) None of these
Description : The prosthetic group of aerobic dehydrogenases is (A) NAD (B) NADP (C) FAD (D) Pantothenic acid
Last Answer : Answer : C
Description : Part of enzyme which combines with nonprotein part to form functional enzyme is (A) Apoenzyme (B) Coenzyme (C) Prosthetic group (D) None of these
Description : Combination of apoenzyme and coenzyme produces (A) Prosthetic group (B) Holoenzyme (C) Enzyme substrate complex (D) Enzyme product complex
Description : Of Which warburg’s yellow enzyme contains as a prosthetic group? (A) Thiamine pyrophosphate (B) Biotin (C) NAD+ (D) Riboflavin-5-phosphate
Description : Prosthetic group in cone cell phototreceptors is (A) Iodine (B) Opsin (C) 11-cis-retinal (D) all-trans-retinal
Description : Consider the following statements: (1) Copper is present in cytochrome oxidane (2) Pantothenic acid is precursor of co-enzyme-A (3) Thiamine prohosphate is the prosthetic group in decarboxylases (4) Zinc is present in RNA and DNA polymerases
Last Answer : Ans. ((b))
Description : Enzyme without Prosthetic group
Last Answer : Ans. Apo enzyme
Description : Apoenzyme + Prosthetic group
Last Answer : Ans. Holoenzyme
Description : Co-factor (prosthetic group) is a part of holoenzyme. It is (a) loosely attached organic part (b) loosely attached inorganic part (c) accessory non-protein substance attached firmly (d) none of these.
Last Answer : (c) accessory non-protein substance attached firmly
Description : Consider the following statements. (A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the ... ) (A) is true but (B) is false. (d) Both (A) and (B) are false
Last Answer : (d) Both (A) and (B) are false.
Description : Which of the following have carbohydrate as prosthetic group? (a) Glycoprotein (b) Chromoprotein (c) Lipoprotein (d) Nucleoprotein
Last Answer : (a) Glycoprotein
Description : The reaction of Kreb’s cycle which does not require cofactor of vitamin B group is (A) Citrate isocitrate (B) α -Ketoglutarate succinate (C) Malate oxaloacetate (D) Succinate fumarate
Last Answer : Answer : A
Description : Which one of the following is NOT part of an ATP MOLECULE? a. Phosphate group b. Cofactor c. Ribose d. Adenine
Last Answer : b. Cofactor
Description : Can one add extra prosthetic body parts?
Last Answer : You kill me @RedDeerGuy1 !
Description : Cost of a prosthetic eye?
Last Answer : $50 ?
Description : Prosthetic Devices includes i) Computer technology for vision and hearing ii) Powerful IC iii) MRI Systems iv) None of these
Last Answer : i) Computer technology for vision and hearing
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
Description : Which of the following statements describe refractive surgery? a) Refractive surgery is an elective, cosmetic surgery performed to reshape the cornea. Refractive surgery is an elective procedure and is ... a stable refractive error. The corneal structure must be normal and refractive error stable.
Last Answer : a) Refractive surgery is an elective, cosmetic surgery performed to reshape the cornea. Refractive surgery is an elective procedure and is considered a cosmetic procedure (to achieve clear vision without ... is performed to reshape the cornea for the purpose of correction of all refractive errors.
Description : Combined therapy with dipyridamole and warfarin is recommended in subjects with the following: A. Risk factors for coronary artery disease B. Prosthetic heart valves C. Cerebral thrombosis D. Buerger's disease
Last Answer : B. Prosthetic heart valves
Description : A cofactor in the conversion of dihydroorotate to orotic acid, catalysed by the enzyme dihydroorotate dehydrogenase is (A) FAD (B) FMN (C) NAD (D) NADP
Description : Molybdenum is a cofactor for (A) Xanthine oxidase (B) Aldehyde oxidase (C) Sulphite oxidase (D) All of these
Description : Zinc is a cofactor for (A) Acid phosphatase (B) Alkaline phosphatase (C) Amylase (D) Lipase
Description : Cobalt may act as cofactor for the enzyme: (A) Glycl-glycine dipeptidase (B) Elastase (C) Polynucleotidases (D) Phosphatase
Description : A cofactor required for the activity of the enzyme ALA dehydratase is (A) Cu (B) Mn (C) Mg (D) Fe
Description : Isocitrate dehydrogenase can use __________ as a cofactor. (A) NAD+ only (B) NADP+ only (C) NAD+ or NADP+ (D) FMN and FAD
Description : Which of the following is not a cofactor? (A) Mg (B) Iron (C) Cu (D) Methylcobalamine
Description : An inorganic ion required for the activity of an enzyme is known as (A) Activator (B) Cofactor (C) Coenzyme (D) None of these
Description : For reduction enzyme HMG-CoA reductase requires cofactor: (A) NADPH (B) NADP (C) NAD (D) FAD
Description : Synthesis of sphingosine requires the cofactor (A) NAD (B) NADP (C) NADPH+ (D) ATP
Description : A cofactor required for the conversion of acetyl-CoA to malonyl-CoA in extramitochondrial fatty acid synthesis is (A) Biotin (B) FMN (C) NAD (D) NADP
Description : Cofactor for transamination is (A) Thymine (B) Riboflavin (C) Pyridoxine (D) Niacin
Description : One of the main functions of Vitamin K is the cofactor for (A) Carboxylase for the formation of γ--carboxy glutamate (B) Methylation by S-adenosyl methionine (C) Carboxylation by biotin (D) One carbon transfer by tetra hydrofolate
Description : One of the main functions of Vitamin K is cofactor for (A) Carboxylate for the formation of γ carboxyglutamate (B) Methylation of δ-adenosyl methionine (C) Carboxylation of biotin (D) One carbon transfer by tetrahydrofolate
Description : A cofactor required in oxidative decarboxylation of pyruvate is (A) Lipoate (B) Pantothenic acid (C) Biotin (D) Para aminobenzoic acid
Description : The cofactor or its derivative required for the conversion of acetyl CoA to malonylCoA is (A) FAD (B) ACP (C) NAD+ (D) Biotin
Description : Vitamin K is a cofactor for (A) Gamma carboxylation of glutamic acid residue (B) β-Oxidation of fatty acid (C) Formation of γ-amino butyrate (D) Synthesis of tryptophan
Description : Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme: (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase
Description : A pathway that requires NADPH as a cofactor is (A) Extramitochondrial folic acid synthesis (B) Ketone body formation (C) Glycogenesis (D) Gluconeogenesis
Description : A pathway that requires NADPH as a cofactor is (A) Fatty acid oxidation (B) Extra mitochondrial denovo fatty acid synthesis (C) Ketone bodies formation (D) Glycogenesis
Description : For the activation of long chain fatty acids the enzyme thiokinase requires the cofactor: (A) Mg++ (B) Ca++ (C) Mn++ (D) K+
Description : An important reaction for the synthesis of amino acid from carbohydrate intermediates is transamination which requires the cofactor: (A) Thiamin (B) Riboflavin (C) Niacin (D) Pyridoxal phosphat
Description : In presence of the following cofactor, pyruvate carboxylase converts pyruvate to oxaloacetate: (A) ATP, Protein and CO2 (B) CO2 and ATP (C) CO2 (D) Protein
Last Answer : A
Description : As thrombin generation proceeds, the body has natural anticoagulant systems opposing further thrombus formation. Natural anticoagulants include: a. Tissue plasminogen activator (TPA) b. Antithrombin III c. Activated protein C d. Heparin cofactor II
Last Answer : Answer: b, c, d Just as thrombin generation is the key to coagulation, antithrombin III is the most central anticoagulant proteins. This glycoprotein binds to thrombin, preventing its removal of ... in the body. Therefore, TPA is part of the fibrinolytic system rather than a natural anticoagulant
Description : Which of the following is/are not a substrate or cofactor for prolyl hydroxylase? A. Alpha-ketoglutarate. B. Ascorbate. C. Biotin. D. Oxygen. E. Copper.
Last Answer : Answer: CE DISCUSSION: Prolyl hydroxylase is one of the rate-limiting enzymes in collagen synthesis. Substrates and cofactors such as iron, alpha-ketoglutarate, ascorbate, and oxygen are ... broken down. Thus, ascorbate deficiency (scurvy) and hypoxia have similar effects on collagen synthesis