Which of the culture given use of antibiotics amapicillin,chloramphenicol and steptomycin is most effective and least effective in a E. coli

Q: Consider that a certain antimicrobial drug prevents bacterial growth. However, when the drug…

A: ANTIMICROBIAL DRUGS:- These are those chemicals which inhibits or kills the growth of variety of…

Q: 1. Laboratory strains of Staphylococcus aureus (S. aureus is Gram +), Escherichia coli (E.coli is…

A: Antibiotics are the medicines which are used to cure infections which are caused by bacteria. These…

Q: The world is facing a Corona Virus (COVID-19) Pandemic and as a potential scientist and a…

A: The Alcohol has both the anti-microbial as well as anti-viral properties and hence used as the…

Q: Give an explanation for these results based on what you know about the anatomical structure of E.…

A: Escherichia coli is a rod shaped, Gram-negative bacteria. They are non-spore forming bacteria which…

Q: A ____________ spectrum antibiotic is better to use if you know the specific bacterial pathogen.…

A: Life-sustaining medicines such as antibiotics, cardiopulmonary resuscitation (CPR), mechanical…

Q: Suppose you do this test on a hypothetical Staphylococcus species with the antibiotics pencilllin…

A: Disc diffusion test:- it is usually used in clinical studies to know the efficacy of Antibiotics. It…

Q: what kind of experiment can prove that azithromycin (antibiotics) has has an effect of on Quorum…

A: Antibiotics are used as the first line of treatment used in fighting infections caused by bacteria.…

Q: Silver may be used to coatingendotracheal tubes. Silver is an excellent antimicrobial againsts a…

A: Silver is a bacteriocidal (that kils bacteria) metal. It functions by punching holes in bacteria and…

Q: The initial origin of all antibiotic resistance genes involving enzymes, pumps or altered targets wa…

A: Antibiotic resistance is the subject of an increasing challenge for attacking target specific…

Q: How much the use of antibiotics in the food industry (chicken, cows, pigs) be contributing to the…

A: Anibiotic resistance occurs when the bacteria that could previously be killed by a drug, is now able…

Q: The size of the inhibition zone depends on conditions such as: Multiple Choice The concentration of…

A: Inhibition zone is often described as a circular area surrounding the antibiotic spot where colonies…

Q: How would you grow a streptomycin-resistant strain E. coli bacteria was spread on both agar plates…

A: Bacterial resistance does have the capacity where bacteria will withstand the effects of antibiotics…

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: The original Penicillin drug causes bacterial osmotic lysis due to the breakdown of the cell wall in…

A: An antibiotic is a type of antimicrobial substance active against bacteria. They either kill(…

Q: The MIC is the________________________________________ of a drug that is required to inhibit growth…

A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…

Q: What is the difference between a Clinical Breakpoint and the Minimum Inhibitory Concentration (MIC)?…

A: Answer : Option C is correct :

Q: Because penicillin prevents peptidoglycan synthesis, it is more effective on cells Select one: O a.…

A: Penicillin inhibits the repair of the peptidoglycan layer, thus, degrading biological compounds and…

Q: Which of the following mechanisms of action of antibiotics has the fewest side effects?   protein…

A: As already mentioned in the question Antibiotics have mainly 5 basic mechanisms, against the…

Q: You are using the bacterium E. coli to synthesize a protein from recombinant DNA. The protein…

A: Microorganisms incorporate every single unicellular living being as are very assorted. Of the three…

Q: Which of the following is a consideration in treating bacterial infections  A) Bacteriostatic b)…

A: Drugs used to treat these infections are called antimicrobials. The most commonly known…

Q: Some bacteria produce the enzyme penicillinase, which breaks the beta-lactam ring in the penicillin…

A: Penicillin is able to kill bacteria by inhibiting their cell wall biosynthesis . The cell walls of…

Q: This antibiotic, novobiocin, was tested against two different types of bacteria. What can you say…

A: Novobiocin belongs to the class of antibiotics named aminocaumarin that is derived from the…

Q: in which mechanism the antidiarrheal drug diloxanideexerts/pectine their antidiarheal activity…

A: Antidiarrheal drugs Diarrhea is caused by infection, side effects of medications, food intolerance,…

Q: Bacteria produce two kinds of toxins: endotoxins and exotoxins.Whereas endotoxins are _____,…

A: Endotoxins and exotoxins

Q: Which of the following best explains why there is no growth on plate II? (a) The initial bacterial…

A: A "microbe" is a living entity that is so tiny that it cannot be seen with the naked eye.…

Q: The following are common causes of bacterial resistance towards a drug except: O production of drug…

A: The bacteria have evolved to harbour different drug-resistant mechanisms which make these resistant…

Q: Penicillin uses which mechanism of antibiotic action against bacterial cells?

A: Penicillin is a narrow-spectrum antibiotic which kills bacteria by binding the beta - lactam…

Q: A mutation that provides a bacterium with resistance to an antibiotic will be beneficial in all…

A: Bacteria are able to multiply quickly and also in vast numbers. One cell of bacteria split into two…

Q: The UWC Biotechnolo class undertook a study to determine the microbiological quality of mince-meat…

A: In-order to calculate the amount of bacteria present in a highly  concentrated stock solution  ( a…

Q: Which of the following is NOT correct for penicillin? Lütfen birini seçin: O a. It prevents bacteria…

A: Penicillins (P, PCN, or PEN) are antibiotics that were first isolated in the moulds Penicillium…

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: 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: Growth of an E. coli bacteria in batch culture is observed. The bacteria are fed with 0.5 g / L…

A: Bacteria are microorganisms that grow very fast. They almost double every 20 to 30 minutes.…

Q: List the results of your conjugation experiment for each condition you tested on media containing…

A: Conjugation is the process where there is transfer of a plasmid from one bacterial cell (the donor)…

Q: The antibiotic susceptibility testing results of Staphylococcus showed zones of inhibition (absence…

A: S.aureus is a round-shaped gram-positive bacterium, generally found on the skin and upper…

Q: Consider E, coli cells(i) with no vector,(ii) transformed with PBR322, or (iii) transformed with a…

A: pBR322 is a plasmid vector. It is double standard DNA molecule. It contains- Origin of replication…

Q: Antibiotic Zone of Inhibition A 15 mm B O mm 7 mm 15 mm a. Which antibiotic was most effective…

A: Antibiotic sensitivity test is a test is used to evaluate that which antibiotic is best for stopping…

Q: Match each of the descriptions in Column A with the correct panel listed in Column B. Description…

A: Antibiotics are chemical drugs that act against bacteria and it slows or inhibits the growth of…

Q: The structures of two antiviral drugs are shown below. Draw the structures of the natural compounds

A:

Q: Zone of inhibition for each antibiotic Trial 1 Trial 2 Trial 3 Average Sample A (mm) 22 21 21 21.3…

A: Disc diffusion method ( Kirby bauer method ) is a method for determining the sensitivity or…

Q: In the petri dish in Figure 1, the bacteria Esherichia coli (E. coli) was grown and treated with…

A: `E.Coli - E.Coli or Escherichia coli is a type of bacteria that normally lives in your intestines.…

Q: C. dif bacteria are often resistant to antibiotics. What is another possible treatment? How would…

A: - Clostridium difficile is a gram positive bacteria, often caused by previous exposure to…

Q: You work for the U.S Department of Agriculture's Agricultural Marketing Services, which is…

A: Standard plate count method is a technique which is used by microbiologists which allows them to…

Q: The first step for directly linking a microbe to a specific disease according to Koch's postulates…

A: Koch's postulates state that the organism should be isolated from the diseased if the etiology of…

Q: The clear zone around an antibiotic disk Multiple Choice is a plaque indicating the bacteria got…

A: Antibiotics are the drugs that are synthcised with the aim to kill, inhibit or eliminate the…

Q: Penicillin does not directly kill bacteria. Why do cells usually die in the presence of penicillin?

A: Introduction  An antibiotic is a drug that stops microorganism growth and kills it. They fight…

Q: Lactic Acid Bacteria (LAB) is commonly used in the conversion of milk into curd. Mention any two…

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…

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: Complete culture medium is made of Select one: a. DMEM, 10% fetal bovine serum and 1%…

A: Culture media  Culture media  are specific mixtures of nutrients and other substances that are…

Q: A Photo credit: BSP3D- Group 5 Pharm. Bio. Sci 3 Laboratory (S.Y. 2016-2017) Sample is Bacillus…

A: Introduction :- Bacillus subtilis, often known as hay bacillus or grass bacillus, is a…

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."