Penicillins interfere with bacterial cell wall synthesis by: A. Inhibiting synthesis of N-acetyl muramic acid pentapeptide B. Inhibiting conjugation between N-acetyl muramic acid and N-acetyl glucosamine C. Inhibiting transpeptidases and carboxypeptidases which cross link the peptidoglycan residues D. Counterfeiting for D-alanine in the bacterial cell wall

Penicillins interfere with bacterial cell wall synthesis
by:
A. Inhibiting synthesis of N-acetyl muramic
acid pentapeptide
B. Inhibiting conjugation between N-acetyl muramic acid and N-acetyl glucosamine
C. Inhibiting transpeptidases and carboxypeptidases which cross link the peptidoglycan residues
D. Counterfeiting for D-alanine in the bacterial
cell wall
by

1 Answer

Answer :

C. Inhibiting transpeptidases and carboxypeptidases which cross link the peptidoglycan residues
by

Related questions

Penicillins interfere with bacterial cell wall synthesis by (a) Inhibiting synthesis of N-acetyl muramic acid pentapeptide (b) Inhibiting conjugation between N-acetyl muramic acid and N-acetyl glucosamine (c) Inhibiting transpeptidases and carboxy peptidases which cross link the peptidoglycan residues (d) Counterfeiting for D-alanine in the bacterial cell wall

Description : Penicillins interfere with bacterial cell wall synthesis by (a) Inhibiting synthesis of N-acetyl muramic acid pentapeptide (b) Inhibiting conjugation between N-acetyl muramic acid and N-acetyl ... link the peptidoglycan residues (d) Counterfeiting for D-alanine in the bacterial cell wall

Last Answer : Ans: C

The sulfonamides interfere with bacterial metabolism by a. blocking cell wall synthesis. b. disrupting folic acid metabolism. c. reacting with bacterial cell membranes. d. inhibiting DNA replication.

Description : The sulfonamides interfere with bacterial metabolism by a. blocking cell wall synthesis. b. disrupting folic acid metabolism. c. reacting with bacterial cell membranes. d. inhibiting DNA replication.

Last Answer : b. disrupting folic acid metabolism.

The most likely explanation of differing sensitivities of different bacteria to various penicillins is: A. Differing susceptibilities of the various penicillins to β-lactamases produced by different bacteria B. Differing affinities of penicillin binding proteins present in different bacteria towards various penicillins C. Differing penetrability of various penicillins into different bacteria D. Differing rates of cell wall synthesis by different bacteria

Description : The most likely explanation of differing sensitivities of different bacteria to various penicillins is: A. Differing susceptibilities of the various penicillins to β-lactamases produced by different ... into different bacteria D. Differing rates of cell wall synthesis by different bacteria

Last Answer : B. Differing affinities of penicillin binding proteins present in different bacteria towards various penicillins

The last step in synthesis of peptidoglycan is A- attachment of a peptide to muramic acid B- attaching two amino acids to form a cross-link C- attachment of a portion of peptidoglycan to a membrane lipid D- binding of penicillin to a membrane protein

Description : The last step in synthesis of peptidoglycan is A- attachment of a peptide to muramic acid B- attaching two amino acids to form a cross-link C- attachment of a portion of peptidoglycan to a membrane lipid D- binding of penicillin to a membrane protein

Last Answer : attaching two amino acids to form a cross-link

The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes and inhibit bacterial protein synthesis C. They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes ... peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis

Indicate the attribute that is common to both polymyxin B and bacitracin: A. Both are active against gram negative bacteria B. Both are too toxic for systemic use C. Both act by inhibiting bacterial cell wall synthesis D. Both a

Description : Indicate the attribute that is common to both polymyxin B and bacitracin: A. Both are active against gram negative bacteria B. Both are too toxic for systemic use C. Both act by inhibiting bacterial cell wall synthesis D. Both a

Last Answer : B. Both are too toxic for systemic use

Semisynthetic penicillins developed so far have overcome the following drawbacks of benzylpenicillin except: A. Lack of efficacy against gram negative bacilli B. Susceptibility to bacterial penicillinase C. Inactivation by gastric acid D. Potential to cause hypersensitivity reactions

Description : Semisynthetic penicillins developed so far have overcome the following drawbacks of benzylpenicillin except: A. Lack of efficacy against gram negative bacilli B. Susceptibility to bacterial penicillinase C. Inactivation by gastric acid D. Potential to cause hypersensitivity reactions

Last Answer : D. Potential to cause hypersensitivity reactions

What is true of Quinupristin-Dalfopristin: A. It is a synergistic combination of two similar antibiotics B. It acts by inhibiting bacterial protein synthesis C. It is active against most resistant coccal infections D. All of the above are correct

Description : What is true of Quinupristin-Dalfopristin: A. It is a synergistic combination of two similar antibiotics B. It acts by inhibiting bacterial protein synthesis C. It is active against most resistant coccal infections D. All of the above are correct

Last Answer : D. All of the above are correct

The following is true of vancomycin except: A. It is a bactericidal antibiotic active primarily against gram positive bacteria B. It acts by inhibiting bacterial protein synthesis C. It is an alternative to penicillin for enterococcal endocarditis D. It can cause deafness as a dose related toxicity

Description : The following is true of vancomycin except: A. It is a bactericidal antibiotic active primarily against gram positive bacteria B. It acts by inhibiting bacterial protein synthesis C. It is an alternative to penicillin for enterococcal endocarditis D. It can cause deafness as a dose related toxicity

Last Answer : B. It acts by inhibiting bacterial protein synthesis

Chloramphenicol inhibits bacterial protein synthesis by: A. Binding to 30S ribosome and inhibiting attachment of aminoacyl tRNA B. Binding to 50S ribosome and preventing peptide bond formation C. Binding to 50S ribosome and blocking translocation of peptide chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code

Description : Chloramphenicol inhibits bacterial protein synthesis by: A. Binding to 30S ribosome and inhibiting attachment of aminoacyl tRNA B. Binding to 50S ribosome and preventing peptide bond formation C. Binding to ... chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code

Last Answer : B. Binding to 50S ribosome and preventing peptide bond formation

Peptidoglycan is also known as A- N-acetyl muramic acid B- mureinmucopeptide C- N acetylglucosamine D- mesodiaminopimetic acid

Description : Peptidoglycan is also known as A- N-acetyl muramic acid B- mureinmucopeptide C- N acetylglucosamine D- mesodiaminopimetic acid

Last Answer : mureinmucopeptide

Trimethoprim and sulfamethoxazole are examples of synthesis. a. Sulfonamides; PABA b. Penicillins; Cell Wall c. Sulfonamides; Folic Acid d. Macrolides; Protein

Description : Trimethoprim and sulfamethoxazole are examples of synthesis. a. Sulfonamides; PABA b. Penicillins; Cell Wall c. Sulfonamides; Folic Acid d. Macrolides; Protein

Last Answer : c. Sulfonamides; Folic Acid

The repeating unit in hyaluronic acid is (A) Glucuronic acid and Galactosamine (B) Glucuronic acid are glucosamine (C) Glucuronic acid and N-acetyl glucosamine (D) Glucuronic acid and N-acetyl galactosamine

Description : The repeating unit in hyaluronic acid is (A) Glucuronic acid and Galactosamine (B) Glucuronic acid are glucosamine (C) Glucuronic acid and N-acetyl glucosamine (D) Glucuronic acid and N-acetyl galactosamine

Last Answer : Answer : C

Repeating units of hyaluronic acid are (A) N-acetyl glucosamine and D-glucuronic acid (B) N-acetyl galactosamine and D-glucuronic acid (C) N-acetyl glucosamine and galactose (D) N-acetyl galactosamine and L- iduronic acid

Description : Repeating units of hyaluronic acid are (A) N-acetyl glucosamine and D-glucuronic acid (B) N-acetyl galactosamine and D-glucuronic acid (C) N-acetyl glucosamine and galactose (D) N-acetyl galactosamine and L- iduronic acid

Last Answer : A

Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Description : Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Last Answer : B. Alteration of bacterial cell membrane permeability

Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following statement(s) is/are true concerning antimicrobial classes? a. Penicillins and cephalosporins share the compound structure of a b-lactam ring which binds to bacterial division plate proteins b. Tetracyclines and macrolides such as erythromycin inhibit bacterial ribosomal activity and therefore protein synthesis c. Aminoglycosides act in a similar fashion to tetracyclines and therefore are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Description : Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following ... are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Last Answer : Answer: a, b, d Penicillins, cephalosporins, and monobactams possess a b-lactam ring of some type and act to bind bacterial division plate proteins, thus inhibiting cell wall ... act in different mechanisms to inhibit protein synthesis, therefore two agents in combination act synergistically

Insulin regulates fatty acid synthesis by (A) Dephosphorylating of acetyl CoA carboxylase (B) Activating phosphorylase (C) Inhibiting malonyl CoA formation (D) Controlling carnitine-Acyl CoA transferase activity

Description : Insulin regulates fatty acid synthesis by (A) Dephosphorylating of acetyl CoA carboxylase (B) Activating phosphorylase (C) Inhibiting malonyl CoA formation (D) Controlling carnitine-Acyl CoA transferase activity

Last Answer : Answer : A

The chitinous exoskeleton of arthropods is formed by the polymerisation of (a) N - acetyl glucosamine (b) lipoglycans (c) keratin sulphate and chondroitin sulphate (d) D - glucosamine.

Description : The chitinous exoskeleton of arthropods is formed by the polymerisation of (a) N - acetyl glucosamine (b) lipoglycans (c) keratin sulphate and chondroitin sulphate (d) D - glucosamine.

Last Answer : (a) N - acetyl glucosamine

That sulfonamides act by inhibiting folate synthesis in bacteria is supported by the following findings except: A. Paraaminobenzoic acid antagonises the action of sulfonamides B. Methionine antagonises the action of sulfonamides C. Purines and thymidine present in pus antagonise the action of sulfonamides D. Bacteria that utilise folic acid taken up from the medium are insensitive to sulfonamides

Description : That sulfonamides act by inhibiting folate synthesis in bacteria is supported by the following findings except: A. Paraaminobenzoic acid antagonises the action of sulfonamides B. Methionine antagonises ... . Bacteria that utilise folic acid taken up from the medium are insensitive to sulfonamides

Last Answer : B. Methionine antagonises the action of sulfonamides

The polyene antibiotics act by: A. Inhibiting fungal cytochrome P450 enzyme B. Binding to ergosterol and creating micropores in fungal cell membrane C. Inhibiting fungal DNA synthesis D. Disorienting microtubules in fungal cells

Description : The polyene antibiotics act by: A. Inhibiting fungal cytochrome P450 enzyme B. Binding to ergosterol and creating micropores in fungal cell membrane C. Inhibiting fungal DNA synthesis D. Disorienting microtubules in fungal cells

Last Answer : B. Binding to ergosterol and creating micropores in fungal cell membrane

The most probable mechanism of action of imidazole antifungal drugs is: A. They bind to ergosterol in fungal cell membrane and make it leaky B. They interfere with ergosterol synthesis by fungi C. They interfere with fungal mitosis D. They block oxidative phosphorylation in fungi

Description : The most probable mechanism of action of imidazole antifungal drugs is: A. They bind to ergosterol in fungal cell membrane and make it leaky B. They interfere with ergosterol synthesis by fungi C. They interfere with fungal mitosis D. They block oxidative phosphorylation in fungi

Last Answer : B. They interfere with ergosterol synthesis by fungi

The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferase C. Lowered affinity of the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi

Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded ... the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi

Last Answer : B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferas

Sulpha drugs interfere with bacterial synthesis of (A) Lipoate (B) Vitamin E (C) Tetrahydrofolate (D) Ascorbic acid

Description : Sulpha drugs interfere with bacterial synthesis of (A) Lipoate (B) Vitamin E (C) Tetrahydrofolate (D) Ascorbic acid

Last Answer : Answer : C

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

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

The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes ... peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : Ans: B

The cell wall of both bacteria and cyanobactena contains: (a) Lipid (b) Pectin (c) Protein (d) muramic acid

Description : The cell wall of both bacteria and cyanobactena contains: (a) Lipid (b) Pectin (c) Protein (d) muramic acid

Last Answer : Ans. ((d))

Gram negative organisms are largely insensitive to benzyl penicillin because: A. They produce large quantities of penicillinase B. They do not utilise D-alanine whose incorporation in the cell wall is inhibited by benzylpenicillin C. Benzyl penicillin is not able to penetrate deeper into the lipoprotein-peptidoglycan multilayer cell wall of gram negative bacteria D. Both ‘A’ and ‘B’ are correct

Description : Gram negative organisms are largely insensitive to benzyl penicillin because: A. They produce large quantities of penicillinase B. They do not utilise D-alanine whose incorporation in the cell wall is inhibited ... multilayer cell wall of gram negative bacteria D. Both A' and B' are correct

Last Answer : . Benzyl penicillin is not able to penetrate deeper into the lipoprotein-peptidoglycan multilayer cell wall of gram negative bacteria

Vinca alkaloids exert antitumor activity by: A. Activating topoisomerase II to cause breaks in DNA strands B. Crosslinking DNA strands C. Inhibiting DNA mediated RNA synthesis D. Inhibiting polymerization of tubulin to form intracellular microtubules

Description : Vinca alkaloids exert antitumor activity by: A. Activating topoisomerase II to cause breaks in DNA strands B. Crosslinking DNA strands C. Inhibiting DNA mediated RNA synthesis D. Inhibiting polymerization of tubulin to form intracellular microtubules

Last Answer : D. Inhibiting polymerization of tubulin to form intracellular microtubules

Rifampin kills tubercle bacilli by: A. Binding to mycobacterial DNA dependent RNA polymerase B. Inhibiting mycobacterial DNA synthesis C. Inhibiting synthesis of mycolic acids in mycobacteria D. Damaging mycobacterial mitochondria

Description : Rifampin kills tubercle bacilli by: A. Binding to mycobacterial DNA dependent RNA polymerase B. Inhibiting mycobacterial DNA synthesis C. Inhibiting synthesis of mycolic acids in mycobacteria D. Damaging mycobacterial mitochondria

Last Answer : A. Binding to mycobacterial DNA dependent RNA polymerase

Aspirin prolongs bleeding time by inhibiting the synthesis of: A. Clotting factors in liver B. Prostacyclin in vascular endothelium C. Cyclic AMP in platelets D. Thromboxane A2 in platelets

Description : Aspirin prolongs bleeding time by inhibiting the synthesis of: A. Clotting factors in liver B. Prostacyclin in vascular endothelium C. Cyclic AMP in platelets D. Thromboxane A2 in platelets

Last Answer : D. Thromboxane A2 in platelets

Carbimazole acts by inhibiting: A. Iodide trapping B. Oxidation of iodide C. Proteolysis of thyroglobulin D. Synthesis of thyroglobulin protein

Description : Carbimazole acts by inhibiting: A. Iodide trapping B. Oxidation of iodide C. Proteolysis of thyroglobulin D. Synthesis of thyroglobulin protein

Last Answer : B. Oxidation of iodide

Low doses of aspirin prolong bleeding time by selectively inhibiting synthesis of the following mediator in the platelets: A. Thromboxane A2 B. 5-Hydroxytryptamine C. Platelet activating factor D. Prostacyclin

Description : Low doses of aspirin prolong bleeding time by selectively inhibiting synthesis of the following mediator in the platelets: A. Thromboxane A2 B. 5-Hydroxytryptamine C. Platelet activating factor D. Prostacyclin

Last Answer : A. Thromboxane

The following statements are true of oral anticoagulants except: A. They interfere with an early step in the synthesis of clotting factors B. Irrespective of the dose administered, their anticoagulant effect has a latency of onset of 1-3 days C. Their dose is adjusted by repeated measurement of prothrombin time D. They are contraindicated during pregnancy

Description : The following statements are true of oral anticoagulants except: A. They interfere with an early step in the synthesis of clotting factors B. Irrespective of the dose administered, their ... dose is adjusted by repeated measurement of prothrombin time D. They are contraindicated during pregnancy

Last Answer : A. They interfere with an early step in the synthesis of clotting factors

The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded for chloramphenicol acetyl transferase (c) Lowered affinity of the bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded ... bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Last Answer : Ans: B

Aminoglycoside antibiotics exert the following action(s) on sensitive bacteria: A. Induce synthesis of defective proteins B. Make bacterial cell membrane more leaky C. Augment their own carrier mediated entry into the bacteria D. All of the above

Description : Aminoglycoside antibiotics exert the following action(s) on sensitive bacteria: A. Induce synthesis of defective proteins B. Make bacterial cell membrane more leaky C. Augment their own carrier mediated entry into the bacteria D. All of the above

Last Answer : D. All of the above

As a plasma expander, dextran has the following advantages except: A. It exerts oncotic pressure similar to plasma proteins B. It keeps plasma volume expanded for about 24 hours C. It is nonpyrogenic D. It does not interfere with grouping and cross matching of blood

Description : As a plasma expander, dextran has the following advantages except: A. It exerts oncotic pressure similar to plasma proteins B. It keeps plasma volume expanded for about 24 hours C. It is nonpyrogenic D. It does not interfere with grouping and cross matching of blood

Last Answer : D. It does not interfere with grouping and cross matching of blood

If a patient gives history of urticaria, itching and swelling of lips following injection of penicillin G, then: A. He will develop similar reaction whenever penicillin is injected B. He can be given ampicillin safely C. He can be given oral phenoxymethyl penicillin safely D. All natural and semisynthetic penicillins are contraindicated for him

Description : If a patient gives history of urticaria, itching and swelling of lips following injection of penicillin G, then: A. He will develop similar reaction whenever penicillin is injected ... oral phenoxymethyl penicillin safely D. All natural and semisynthetic penicillins are contraindicated for him

Last Answer : D. All natural and semisynthetic penicillins are contraindicated for him

The following is true of linezolid except: A. It inhibits bacterial protein synthesis at an early step B. It is active against vancomycin resistant enterococci C. It is the drug of choice for enterococcal endocarditis D. It can be administered orally as well as by i.v. infusion

Description : The following is true of linezolid except: A. It inhibits bacterial protein synthesis at an early step B. It is active against vancomycin resistant enterococci C. It is the drug of choice for enterococcal endocarditis D. It can be administered orally as well as by i.v. infusion

Last Answer : C. It is the drug of choice for enterococcal endocarditis

Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ribosome does not move along the mRNA and the peptide chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin

Description : Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ... chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin

Last Answer : B. Erythromycin

Select the class of antibiotics which act by interfering with bacterial protein synthesis, but are bactericidal: A. Tetracyclines B. Aminoglycosides C. Macrolides D. Lincosamides

Description : Select the class of antibiotics which act by interfering with bacterial protein synthesis, but are bactericidal: A. Tetracyclines B. Aminoglycosides C. Macrolides D. Lincosamides

Last Answer : B. Aminoglycosides

The most efficacious drug for inhibiting round the clock gastric acid output is: A. Omeprazole B. Cimetidine C. Pirenzepine D. Misoprostol

Description : The most efficacious drug for inhibiting round the clock gastric acid output is: A. Omeprazole B. Cimetidine C. Pirenzepine D. Misoprostol

Last Answer : A. Omeprazole

Diazoxide is an effective hypotensive, but is not used in the long-term treatment of hypertension because: A. It impairs glucose tolerance by inhibiting insulin release B. It inhibits uric acid excretion C. It causes marked Na+ and water retention leading to development of tolerance D. All of the above

Description : Diazoxide is an effective hypotensive, but is not used in the long-term treatment of hypertension because: A. It impairs glucose tolerance by inhibiting insulin release B. It inhibits uric acid ... causes marked Na+ and water retention leading to development of tolerance D. All of the above

Last Answer : D. All of the above

In urea synthesis, the amino acid functioning solely as an enzyme activator: (A) N-acetyl glutamate(B) Ornithine (C) Citrulline (D) Arginine

Description : In urea synthesis, the amino acid functioning solely as an enzyme activator: (A) N-acetyl glutamate(B) Ornithine (C) Citrulline (D) Arginine

Last Answer : Answer : A

Furosemide acts by inhibiting the following in the renal tubular cell: A. Na+-K+-2Cl– cotransporter B. Na+-Cl– symporter C. Na+-H+ antiporter D. Na+ K+ ATPase

Description : Furosemide acts by inhibiting the following in the renal tubular cell: A. Na+-K+-2Cl– cotransporter B. Na+-Cl– symporter C. Na+-H+ antiporter D. Na+ K+ ATPase

Last Answer : A. Na+-K+-2Cl– cotransporter

Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria by conjugation. (c) Bacteria obtained its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus.

Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria by conjugation. (c) Bacteria obtained its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.

Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus

Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.

Description : Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.

Last Answer : a. Take Up DNA Fragments From The Environment.

A bacterial cell that is transformed _____. a. Cannot Form A Conjugation Pilus. b. Has Undergone A Frameshift Mutation. c. Has Acquired Dna From The Environment. d. Will Probably Die Within 24 Hours.

Description : A bacterial cell that is transformed _____. a. Cannot Form A Conjugation Pilus. b. Has Undergone A Frameshift Mutation. c. Has Acquired Dna From The Environment. d. Will Probably Die Within 24 Hours.

Last Answer : c. Has Acquired Dna From The Environment.

The following is not true of the cytochrome P450 isoenzyme CYP2D6: A. It generates the hepatotoxic metabolite N-acetyl benzoquinone immine from paracetamol B. It is involved in demethylation of codeine into morphine C. Its altered form is responsible for poor capacity to hydroxylate many drugs including metoprolol D. It is inhibited by quinidine

Description : The following is not true of the cytochrome P450 isoenzyme CYP2D6: A. It generates the hepatotoxic metabolite N-acetyl benzoquinone immine from paracetamol B. It is involved in demethylation of ... for poor capacity to hydroxylate many drugs including metoprolol D. It is inhibited by quinidine

Last Answer : A. It generates the hepatotoxic metabolite N-acetyl benzoquinone immine from paracetamol

N-acetyl cysteine is beneficial in acute paracetamol poisoning because: A. It reacts with paracetamol to form a nontoxic complex B. It inhibits generation of the toxic metabolite of paracetamol C. It is a free radical scavenger D. It replenishes hepatic glutathione which in turn binds the toxic metabolite of paracetamol

Description : N-acetyl cysteine is beneficial in acute paracetamol poisoning because: A. It reacts with paracetamol to form a nontoxic complex B. It inhibits generation of the toxic metabolite of ... scavenger D. It replenishes hepatic glutathione which in turn binds the toxic metabolite of paracetamol

Last Answer : D. It replenishes hepatic glutathione which in turn binds the toxic metabolite of paracetamol