Q: Explain why there are far fewer antifungal agents than there are antibacterial agents
A: Antifungal agents are the agents that cause harm to the fungal cells while the antibacterial agents…
Q: As a doctor, you come across patients whose bacterial illnesses are no longer responding to…
A: Tetracycline is an antibiotics that is used to treat the infections caused by the bacteria that…
Q: A new chemotherapeutic drug kills bacteria but not humans. Discuss the possible ways the drug may…
A: A cell is defined as the smallest unit of a living organism which is the basic structural,…
Q: Why is it incorrect to say that bacteria produce toxins to harm their host?
A: When a bacterium invades a host cell it may produce a toxin. Toxins are strong elements that are…
Q: Based on the following image, which concentration of antibiotic would be considered the minimum…
A: Minimum bactericidal concentration (MBC) is defined as the lowest concentration in which an…
Q: Given that both human cells and pathogens synthesize proteins at ribosomal sites, how can…
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Q: Since there are still bacteria left in pasteurized milk, why is it not routinely sterilized instead…
A: Hello! Since you have posted multiple questions, we are answering only first question. If you need…
Q: Which of the following would most likely be used to lyse bacterial cells so that their nucleic acids…
A: Recombinant DNA technology involves several steps in specific sequence such as isolation of DNA,…
Q: Give two examples of antibiotics that act on the following: cell wall synthesis disruption of cell…
A: Antibiotics are either natural products of microorganisms or semi-synthetically produced from…
Q: Why have the chemical structure of some antimicrobial drugs been modified into semisynthetics?
A: Many antibiotics or antimicrobial drugs halt bacterial infection by interfering with the…
Q: Which of the following is antiviral drug? O a. Penicillin O b. Streptomycin O c. Acyclovir O d. All
A:
Q: Which drug among the following inhibits bacterial protein synthesis by attaching to the bacterial…
A: Tetracyclines, prevent the binding of aminoacyl-tRNA by blocking the A (aminoacyl) site of the 30S…
Q: (b) Bacteria strain that can grow in the presence of streptomycin.
A:
Q: Why doesn’t penicillin act against any eukaryotic pathogens
A: There are broadly two type of cell based on the structure and function: prokaryotic cells( form…
Q: why is peptidoglycan synthesis inportant in antibiotic activity? why do antibiotics not interfere…
A: Answer: PEPTIDOGLYCAN : It is a polymer which is made up of sugars and amino acids thats forms the…
Q: How do the cytochrome P450 proteins affect drug responses?Give two examples.
A: Cytochrome P450 is an enzyme.
Q: What type of antimicrobial/antibiotic is completely synthesized in a laboratory? O Synthetic O…
A: Antibiotics are a large chemical class of therapeutics that are produced naturally or synthetically.…
Q: What is the mode of action of most antifungal drugs? inhibition of RNA synthesis disruption of…
A: An antifungal drug eliminates the fungal pathogens selectively from a host. During this process, the…
Q: Why do pathogenic bacteria make enzymes? Name one enzyme that affects blood clotting (or clots) and…
A: Bacteria that can induce disease are known as pathogenic bacteria. Many bacteria are harmless and…
Q: Define the following terms: Bactericidal Bacteriostatic Antisepsis
A: Microorganisms are microscopic and most of them causes harmful effects in human body, but some of…
Q: Many people use antimicrobial soap to kill bacteria on their hands. However, overuse may increase…
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Q: why is microalgae spirulina is most commonly used to reduce air pollution?
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Q: why the vibrio bacteria might survive better in colder temperatures? what part of their DNA or…
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Q: What was the first synthetic antimicrobial? - Salvarsan - Tetracycline - Sulfonimide
A: Need to find the first antimicrobial from the following.
Q: list 3 different mechanisms of antibacterial drugs. Example: acting on cell wall, cell membrane, etc
A: Antibacterial drugs are known to inhibit bacterial growth. Hence they are against ( anti) bacteria.…
Q: Match the antimicrobial drug to its action. 1. Erythromycin A. Inhibits cell wall synthesis 2.…
A: In the following table the Antimicrobials have been matched with their actions: Antimicrobial…
Q: What characteristics make a pathogen or its productsparticularly useful as a biological weapon?
A: A biological weapon as the term suggests is the weapon that includes microorganisms and it is…
Q: Why do the penicillin and cephalosporin groups of drugs have mildertoxicity than other antibiotics?…
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Q: Explain how bacteria can become resistant to ampicillin. Be sure to mention the following terms:…
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Q: Would there be any advantage to administering a bacteriostatic agent along with penicillins? Any…
A: Antibiotics, as the name suggests, are antimicrobial compounds that are either bactericidal or…
Q: Which of the following is not an antiviral drug? O Protease inhibitors O Fusion inhibitors O Cell…
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Q: Because elemental poisons, such as heavy metals, cannot be furtherdegraded even by microbes, what is…
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Q: How is UV radiation a good type of control mechanism against microbial growth? Please explain what…
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Q: What kind of drug might be made out of an antimicrobial peptide and describe an advantage it would…
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Q: Which of the following BEST describes an agent that is bacteriostatic? A) It suspends bacterial…
A: Correct answer is D
Q: ive two reasons why E. coli is naturally resistant to antibiotics like Penicillin?
A: Bacterial survival in an adverse situation, in a substrate is given as the ability of bacteria to…
Q: which antiseptic do you think will be most effective against the probiotic? Why?
A: Probiotics are live microorganisms that have direct health benefits when consumed . They are usually…
Q: Why do penicillins not kill species of Archaea?
A: Archaea are single celled-microorganisms and they are prokaryotes. They comprise of a single…
Q: Why does hydrogen peroxide are most effective against probiotics?
A: Hydrogen peroxide is a peroxide. It acts as an oxidizing agent
Q: why doesn’t penicillin act against any eukaryotic pathogens.
A: Based on structure and function, there are two types of cells: Eukaryotic cells and prokaryotic…
Q: Do all antibiotics show the same affectivity against both Gram positive and Gram negative organisms?
A: INTRODUCTION The terms Gram positive and Gram negative are commonly used to describe bacteria. the…
Q: What are the disadvantages of penicillin?
A: Penicillin is narrow spectrum antibiotic that prevents synthesis of peptidoglycan in bacteria. The…
Q: Will all strains of an organism show the same antibiotic spectrum? Why not
A: Antibiotic resistance is the ability of bacteria or other microbes to resist the effects of an…
Q: Why gentamicin and tetracycline are not effective against eukaryotic microorganisms such as fungi?
A: Tetracycline and gentamicin are antimicrobial agents.
Why do most antibacterial drugs not destroy human cells?
Antibiotic
A chemical substance that inhibits the growth of microorganism by altering the intracellular process is called an antibiotic.
Categories of antibiotics
- Broad spectrum
- Narrow spectrum
- Extended spectrum
Antibiotics are used to treat bacterial infection such as infection of skin, eyes, bronchus, abdomen and so on.
Step by step
Solved in 2 steps
- Why are certain anti-bacterial agents more effective at killing bacteria?Which of the following types of antimicrobial drugs make microbes more susceptible to osmotic pressure? 1) drugs that inhibit nucleic acid synthesis O 2) drugs that inhibit metabolic pathways 3) drugs that inhibit cell wall synthesis 4) drugs that block a pathogen's recognition of its host 5) drugs that inhibit protein synthesisPenicillin does not directly kill bacteria. Why, then is it considered to be bacteriocidal?
- Substances that are naturally produced by certain microorganisms that can either inhibit or destroy other microorganisms are called: a)semisynthetic drugs b) narrow-spectrum drugs c) antibiotics d) synthetic drugsWhy are b- lactam antibiotics only bactericidal to growing bacteria?Which of the following statements about antibiotics is TRUE? a) Antibiotics are used to disinfect bench tops.b) An antibiotic is a type of antiseptic.c) Some antibiotics inhibit the growth of a pathogen and do not kill it.d) Some antibiotics work by binding the 40S ribosomal subunit.e) Antibiotics are used to treat fungal infections.
- We have many antimicrobial drugs to treat bacterial infections, but very few for viruses. Why is it so difficult to treat viral infections? Hint: What would the targets for the drugs be?Because elemental poisons, such as heavy metals, cannot be furtherdegraded even by microbes, what is a possible fate of these metals?Which of the following BEST describes an agent that is bacteriostatic? A) It suspends bacterial synthesis of Tranexamic Acid. B) It kills the bacteria by destroying its cell wall. C) It zaps the bacteria with static electricity. D) It suspends bacterial growth.
- Why doesn’t penicillin act against any eukaryotic pathogens?What are some of the disadvantages of using natural penicillin for treatment of infections?Antibiotics are very important in modern medical treatment: a) How is Giardia, a eukaryotic pathogenic parasite, affected by penicillin? Explain your answer. b) Is it beneficial to use sulfonamide and trimethoprim at the same time to treat an infection? Motivate your answer.