Description : Combination of apoenzyme and coenzyme produces (A) Prosthetic group (B) Holoenzyme (C) Enzyme substrate complex (D) Enzyme product complex
Last Answer : Answer : B
Description : An organic substance bound to an enzyme and essential for the activity of enzyme is called (A) Holoenzyme (B) Apoenzyme (C) Coenzyme (D) Isoenzyme
Last Answer : Answer : C
Description : Protein portion of an enzyme when it is combined with organic molecule is termed as A- apoenzyme B- co-enzyme C- holoenzyme D- co-factors
Last Answer : apoenzyme
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
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
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 : Protein part of enzyme is know as – (1) Isoenzyme (2) Holoenzyme (3) Apoenzyme (4) All the above
Last Answer : (3) Apoenzyme Explanation: Enzymes are defined as biological catalysts. Chemically all enzymes are globular proteins. Each enzyme catalyses only one chemical reaction. Protein part of enzyme is known as Apoenzyme.
Description : Protein part of enzyme is know as (1) Isoenzyme (2) Holoenzyme (3) Apoenzyme (4) All the above
Last Answer : Apoenzyme
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 : A Holoenzyme is (A) Functional unit (B) Apo enzyme (C) Coenzyme (D) All of these
Last Answer : Answer : D
Description : difference between apoenzyme and holoenzyme -Biology
Last Answer : answer:
Description : Difference between apoenzyme and coenzyme -Biology
Description : Which of the following is not having an apoenzyme and coenzyme? (A) Lactate dehydrogenase (B) Succinate dehydrogenase (C) Malate dehydrogenase (D) Pepsin
Description : Enzymes combine with a ___________at the___________ site to lower the activation energy. a. Substrate; Active b. Product; Noncompetitive c. Product; Active d. Coenzyme; Active
Last Answer : a. Substrate; Active
Description : What is it called when an enzyme is blocked at its active site so the normal substrate can't bind? a. Competitive Inhibition b. Feedback Inhibition c. Noncompetitive Inhibition d. Pathway Modulation
Last Answer : a. Competitive Inhibition
Description : If an enzyme‘s active site becomes deformed, inhibition was likely responsible. a. Metabolic b. Competitive c. Noncompetitive d. Cellular
Last Answer : c. Noncompetitive
Description : Ribonucleotides of RNA primer are replaced by deoxyribonucleotides by the enzyme: (A) DNA polymerase I (B) DNA polymerase II (C) DNA polymerase III holoenzyme (D) All of these
Last Answer : Answer : A
Description : Features of methylcobalamin include the following: A. It is an active coenzyme form of vit B12 B. It is required for the synthesis of S-adenosyl methionine C. It is specifically indicated for correcting neurological defects of vit B12 deficiency D. All of the above
Last Answer : D. All of the above
Description : Hormones (A) Act as coenzyme (B) Act as enzyme (C) Influence synthesis of enzymes (D) Belong to B-complex group
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
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 : Biotin is a coenzyme of the enzyme (A) Carboxylase (B) Hydroxylase (C) Decarboxylase (D) Deaminase
Description : Riboflavin is a coenzyme in the reaction catalysed by the enzyme (A) Acyl CoA synthetase (B) Acyl CoA dehydrogenase (C) β-Hydroxy acyl CoA (D) Enoyl CoA dehydrogenase
Description : The following co-enzyme is needed for the oxidative decarboxylation of ketoacids: (A) NADP+ (B) TPP (C) Folate coenzyme (D) Biotin coenzyme
Last Answer : B
Last Answer : (A) Carboxylase
Description : Isoniazid has a very narrow drug spectrum as the active form of the drug specifically interferes with cell wall synthesis in _____ by inhibiting the production of mycolic acid in the cell wall. a. Staphylococcus b. Streptococcus c. Enterococcus d. Mycobacterium
Last Answer : d. Mycobacterium
Description : Apoenzyme + Prosthetic group
Last Answer : Ans. Holoenzyme
Description : In an ELISA, the primary antibody represents a. The patient‘s serum. b. The antibody recognizing the secondary antibody. c. The enzyme-linked (labeled) antibody. d. The antibodies having been washed away.
Last Answer : b. The antibody recognizing the secondary antibody.
Description : Which of the following is NOT an enzyme a pathogen might use to gain entrance into the body? a. Coagulase b. Streptokinase c. Hemolysin d. A-C Are Correct
Last Answer : d. A-C Are Correct
Description : The bacterial enzyme ______ assists the spread of bacteria away from a blood clot, while ______ assists the spread through body tissues. a. Streptokinase; Hyaluronidase b. Streptokinase; Hemolysin c. Coagulase; Hyaluronidase d. Coagulase; Hemolysin
Last Answer : a. Streptokinase; Hyaluronidase
Description : The enzyme adds complementary bases to the DNA template strand during replication. a. Ligase b. Helicase c. DNA polymerase III d. RNA polymerase
Last Answer : d. RNA polymerase
Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase
Last Answer : A.substrate-level phosphorylation
Description : The other name of invertase enzyme is A- sucrose B- saccharase C- isomerase D- both (a) and (b
Last Answer : both (a) and (b)
Description : The ability of CTP to bind to aspartate carbamoyltransferase and shut down the synthesis of more A- enzyme induction B- enzyme repression C- feedback inhibition of enzyme activity D- none of these
Last Answer : feedback inhibition of enzyme activity
Description : Isozymes or iso enzymes are those enzyme which A- have same structural forms B- have different structural forms but identical catalytic properties C- catalyses oxidation reactions D- none of these
Last Answer : have different structural forms but identical catalytic properties
Description : Main function of an enzyme is to A- increase the activation energy B- decrease the activation energy C- maintain constant activation energy D- .none of these
Last Answer : decrease the activation energy
Description : Most of the energy in aerobic respiration of glucose is captured by A- substrate-level phosphorylation B- electron transport of electrons from NADH C- long-chain fatty acid oxidation D- the enzyme formic-hydrogen lyase
Last Answer : electron transport of electrons from NADH
Description : Which of the following organism produces enzyme taka diastase? A- A. oryzae B- B. subtilis C- A. niger D- S. cerevisiae
Last Answer : A. oryzae
Description : The transposase gene encodes an enzyme that facilitate A- viral replication within a genome B- general recombination C- site-specific integration of transposable elements D- none of the above
Last Answer : site-specific integration of transposable elements
Description : Enzyme catalase has non-protein metal asA-magnesium B-manganese C-iron D-zinc
Last Answer : iron
Description : Allosteric enzymes are A- larger than simple enzyme B- smaller than simple enzyme C- larger and more complex than simple enzyme D- .smaller than simple enzyme but not complex
Last Answer : larger and more complex than simple enzyme
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
Last Answer : .lysozyme
Description : Which one of the following pairs is matched correctly? a. Ions - covalent bonds b. Carbon - organic compounds c. Glucose - enzyme d. Thymine - amino acid
Last Answer : b. Carbon - organic compounds
Description : Which is the enzyme that degrade tryptophan to indol , pyruvic acid and ammonia A Tryptoamylase B Indolase C Tryptophanase D Tryptolyase
Last Answer : C Tryptophanase
Description : _____ implies that if enough people in a population are immunized against certain diseases, then it is very difficult for those diseases to spread. a. Herd immunity b. Passive immunity c. Active immunity d. Natural immunity
Last Answer : a. Herd immunity
Description : _____ acquired _____ immunity usually follows an obvious illness or it may follow a subclinical illness. a. Naturally; passive b. Artificially; active c. Naturally; active d. Artificially; passive
Last Answer : c. Naturally; active
Description : Immune complex formation and serum sickness are dangers of a. Artificially acquired passive immunity. b. Naturally acquired active immunity. c. Artificially acquired active immunity. d. Naturally acquired passive immunity.
Last Answer : a. Artificially acquired passive immunity.
Description : Exposure to the flu virus, contracting the flu, and recovering from the disease would be an example of a. Artificially acquired passive immunity. b. Naturally acquired active immunity. c. Artificially acquired active immunity. d. Naturally acquired passive immunity.
Last Answer : b. Naturally acquired active immunity.