Which of the following mechanisms of action of antibiotics has the fewest side effects? protein synthesis cell wall synthesis DNA replication synthesis of essential metabolites enzymatic activity
Q: Cell wall inhibitors – (including Penicillins) - Inhibitors of protein synthesis Injury to plasma…
A:
Q: Which of the following is the most important structure related to microbial attachment to cells?…
A: Flagellum is microscopic hair-like structures involved in the locomotion of a cell. The flagella…
Q: which one is nucleoside - amoino acid- de novo synthesis - nucleotide - salvage
A: Nucleotides and nucleosides: Nucleic acids such as DNA and RNA are polynucleotides. They are chains…
Q: Which of the following structures contains genes for enzymes and antibiotic resistance? Plasmid…
A: A gene is a sequence of DNA nucleotides that encodes a protein. A gene contains the instructions for…
Q: Why are bacterial DNA gyrase and topoisomerase good targets for antimicrobial drugs? These enzymes…
A: There are six targets of antibiotics for their action for bacteria that are: Cell well Cell…
Q: DNA replication is critical to the growth of microbes. describe themechanism used by prokaryotes to…
A: DNA polymerase III replicates prokaryotic DNA at a rate of 1000 nucleotides per second in the 5′ to…
Q: The plasmid (episome) F factor mediates which of the following? a. Transduction b. Transformation…
A: A plasmid or DNA sequence enables certain bacteria to create a sex pilus for conjugation with other…
Q: Holoenzyme binds the DNA without the assistance of proteins such as TFs. True False
A: Enzymes are the catalysts who function to enhance the rate of reaction without the enzymes being…
Q: Explain the importance of each of the following plasmids: conjugative plasmid, R plasmid, Col…
A: Biotechnology is a branch of biology, including the use of living organisms to produce products.…
Q: Which one of the following vitamins is known as the anti sterile factor ? A) Ascorbic acid B)…
A: Answer is A.) Ascorbic acid.
Q: Which of the following involves remarkable capacity of short segment of DNA to move from one place…
A: in order to find out the correct answer, let's analyse each option 1. transposition: DNA transposons…
Q: Most medically useful antibiotics interfere with either peptidoglycan synthesis or ribosome…
A: Antibiotics are the antimicrobial drugs that prevent the growth of bacteria. These antibiotics have…
Q: Lysozyme and the antibiotic penicillin have similar mechanisms of action in that they both cause…
A: To find: What do Lysozyme and the antibiotic penicillin cause damage to?
Q: Indicate in the boxes the activity inhibited by the antibioticsand list some antibiotics which…
A: Bacteria are prokaryotic organisms that are devoid of any membrane-bound organelles. They possess a…
Q: In their Nobel Prize-winning experiments, Beadle and Tatum exposed fungal spores to X-rays to induce…
A: In case genes were associated with biochemical catalysts, Beadle and Tatum contemplated that it…
Q: 7. A proteolytic enzyme has the following action: 1. It cleaves complex sugars into simple sugars.…
A: Proteolytic enzymes are also known as proteases , peptidase or proteinases . In the human body ,they…
Q: Which of the following contributes the least to the rapid spread of antibiotic resistance among…
A: Antibiotic resistance is a phenomenon by which microorganisms like bacteria gain resistance to a…
Q: All of the following contribute to prokaryotic genetic recombination of DNA EXCEPT conjugation…
A: Bacteria is a prokaryotic organism. It contains nucleoid and lacks membrane bound organelles.
Q: Materials: • Single colony of E. coli cells to be transformed • LB medium • 0.1 M CaCl2, ice cold…
A: The most common bacterial species for transformation is E.coli but their natural competency (copy…
Q: Question: Name and explain the mode of mechanism of antibiotics (one each) targeting prokaryotic (1)…
A: 1. levofloxacin and norfloxacin are the antibiotics that interfere with DNA synthesis by inhibiting…
Q: Antibiotics often target which components of microbial cells? Choose all that apply. Group of…
A: Antibiotics are chemical compounds that are naturally occurring or synthetic which are used to…
Q: Which of the following modes of action would be most selectively toxic?a. interrupting ribosomal…
A: The given mechanisms of action are used by different antibacterial drugs to kill bacteria. Selective…
Q: antibiotic
A: Antibiotics, also known as antibacterials, are medications that destroy or slow down the growth of…
Q: Please indicate whether you expect growth or no growth. (Each cell is worth 0.25) Tetracycline No…
A: Antibiotic resistance is a normal part of life. Antibiotic resistance, on the other hand, is driven…
Q: Spectrum of activity describes how many species of microbes a drug works against. Broad-spectrum…
A: Introduction :- Antibiotics are the drugs that are most preferably used to treat the general…
Q: Which of the following statements about plasmids is FALSE? 1) The number of copies of plasmids per…
A: ANSWER: - There are specifically two different types of plasmids found in the prokaryotic cells.…
Q: Which of the following is not an antiviral drug? O Protease inhibitors O Fusion inhibitors O Cell…
A: Antiviral drugs - protease inhibitors ,Fusion inhibitors and entry inhibitors . Fusion or Entry…
Q: What is required for the transformation of a bacterial cell (as opposed to conjugation and…
A: Bacterial transformation is a method of gene transfer by which some bacteria take up foreign genetic…
Q: Why is ultraviolet radiation only sufficient for the disinfection of surfaces or air, while x-rays…
A: Sterilization is a process where all viable microbes including virus, endospores etc are destroyed…
Q: CHOICES: Physical Agent Base Analogs Alkylating Agent Intercalating Agent Metal ions…
A: The mutation is a permanent alteration in the nucleotide sequence of DNA molecules. The mutation…
Q: Which of the following is a function of a bacterial glycocalyx? Adherence to structures Protection…
A: Glycocalyx covers the bacterial cell wall. It is made inside the cell and secretes to the cell…
Q: Adding CaCl2 to E. coli cells allows the E. coli cells to freeze properly. assists with DNA uptake…
A: Cacl2 is an inorganic compound, a salt with the chemical formula CaCl2. It is white coloured…
Q: When using combination antibiotic therapy, it is important to administer drugs that work…
A: Antibiotic synergism It is the combination of antibiotics to enhance the activity in which two or…
Q: action of DNA inhibitors antibiotics
A: DNA (deoxyribonucleic acid) is a helical structure that is made up of two chains of polynucleotides…
Q: Which of the following does NOT describe a mechanism for drug resistance? Prevention of drug entry…
A: Drug resistance is defined as a reduction in the effectiveness of drugs, chemicals and other agents.…
Q: Antibiotic medication work by targeting specific structures and function in bacterial cells. Side…
A: Antibiotics are medicines or drugs used to prevent and treat bacterial infections. Antibiotic…
Q: Which of the following statements about the processes of the central dogma is/are incorrect? I.…
A:
Q: Use the following statements that best describes the antibiotic mechanism for each: Statement:…
A: Antibiotics are prescriptions that battle bacterial contaminations in individuals and creatures.…
Q: Base excision repair starts with cleavage of the between the damaged base and the deoxyribose.…
A: Base excision repair is a cellular mechanism that repairs damaged DNA throughout the cell cycle. It…
Q: The image below pertains to the process of DNA Replication. Fill in the following image with the…
A: DNA replication is a biological process which occurs in every cell through which two identical…
Q: Which of the following blocks cell wall synthesis? O ciprofloxacin erythromycin rifampin mebendazole…
A: Cell wall is the outermost layer of the microbes. The cell wall inhibitors are the class of drugs…
Q: The most selectively toxic antibacterial agents are those that interfere with bacterial cell wall…
A: The term "antibacterial" refers to the agents that have the potential to either kill or restrict…
Q: Which of the following best describes the mechanism of action of the antibiotic streptomycin?…
A: Streptomycin is a broad spectrum of antibiotics that can act against both gram-positive and…
Q: Which of the following is NOT a feature associated with filtration? sterilization of…
A: Filtration is a process in which the smaller or liquidy substances can be removed from the larger…
Q: Which of the following is the site of action for penicillin? Cell wall Cell membrane Protein DNA
A: We know that Penicillin is a beta-lactam antibiotic that is produced from certain fungal species and…
Q: How many tested antibiotics targeted the folate pathway and DNA/RNA synthesis?
A: This action directs the examination of a distributed logical figure from a concentrate on whether…
Q: how the human cells can be affected by action of mechanism of action of dna inhibitors antibiotics ?
A: antibiotics are chemical substance which are produced by bacteria and other microorganisms which…
Q: A proteolytic enzyme has the following action: 1. It cleaves complex sugars into simple sugars. 2.…
A: Proteolytic enzymes are the enzymes that breaks proteins into smaller peptide fractions and amino…
Q: What is a cfu? • The average number of plasmids contained by a bacterium. • A single bacterium…
A: Introduction A CFU is defined as a single, viable propagule that produces a single colony, It is the…
-
Which of the following mechanisms of action of antibiotics has the fewest side effects?
-
protein synthesis
-
cell wall synthesis
-
DNA replication -
synthesis of essential metabolites
-
enzymatic activity
-
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A pathogenic bacteria ferments for survival in your patient producing a swollen, dark discolored leg due to muscles degradation and gas-filled distension on the skin. Treatment includes pressurized hyperbaric oxygen. Which of the following apply? None of the statements apply Streptococcus pneumoniae causing community aquired pneumonia. Klebsiella pneumoniae causing cellular degradation in pulmonary tissues Clostridium perfringens causing gas gangrene resulting in myonecrosis by synthesis of acids and gases Staphylococcus aureus producing lipases and proteasesWhat is the mode of action of most antifungal drugs? inhibition of RNA synthesis disruption of membranes destruction of chitin inhibition of protein synthesis inhibition of folic acid precursor synthesisWhich drug among the following inhibits bacterial protein synthesis by attaching to the bacterial 305 ribosome? Cefixime Amoxicillin OErythromycin Doxycycline
- Which of the following drug classes is named according to its characteristic large chemical ring structure? Multiple Choice Penicillins Macrolide antibiotics Cephalosporins AminoglycosidesThe type of antimicrobial drug that would be most likely to have toxic effects in humans based on the premise of selective toxicity when treating microbial infection would be a drug that O 1) inhibits the synthesis of the cell wall O 2) inhibits metabolic pathways O 3) disrupts the cytoplasmic membrane 4) inhibits protein synthesis 5) All of the above have equal potential to be toxicWhich of the following is the site of action for penicillin? O Cell wall Cell membrane O Protein O DNA
- Which of the following is a true statement about the aminoglycosides? Multiple Choice They are a group of bacteriostatic antibiotics. Their antibacterial spectrum mainly includes gram-positive bacilli. They are active against anaerobic organisms. They cause irreversible inhibition of bacterial protein synthesis.Some bacteria produce the enzyme penicillinase, which breaks the beta-lactam ring in the penicillin molecule and converts it into penicilloic acid, which is harmless to bacteria. This is an example of which of the following mechanisms of antibiotic resistance? which option below is the answer? Destruction or inactivation of the antibiotic by the microbe Preventing penetration to the target site within the microbe Alteration of the drug’s target site(s) within the microbe None of the other four answers are correct Rapid ejection (pumping) of the drug out of the microbial cellTechnically speaking, which antimicrobial drugs are produced naturally? Biofilms Antibiotics Semisynthetics Synthetics
- Which one of the following statements regarding antibiotics is FALSE? It is a substance produced by microorganisms It is a substance produced totally by chemical synthesis It is a substance produced partially by chemical synthesis JEANETEN SEER E It is a substance produced by our immune system in response to a pathogen OIt kills or inhibits the growth of micro-organismsWhich antimicrobial agents have the narrowest spectrum of action? antivirals antifungals beta-lactams sulfanilamidesBottom of Form Penicillin is a narrow spectrum antibiotic because it only affects bacteria with mycolic acid in its cell wall, such as Mycobacterium tuberculosis. it only affects viruses it only affects Gram-negative organisms it only affects Gram-positive organismsBottom of Form Which of the following antibiotics might be destroyed by beta-lactamase enzymes? amphotericin B and ciprofloxacin streptomycin penicillin ciprofloxacinBottom of Form Which is incorrect about how the pharmaceutical industry has discovered drugs over the past 100 years? The process of discovery has involved custom-designing chemical compounds that we know will bind to target enzymes. The process of discovery has involved screening for chemicals that are toxic to bacteria while being less toxic to human cells. The process of discovery has involved screening thousands of randomly…Which of the following groups of antimicrobial drugs selectively targets bacterial cell wall synthesis? beta-lactams quinolones sulfonamides polymyxins phenols