which agent was most effective against the fecal coliform that was tested? how does this agent kill bacterial cells?

Q: What is an experiment used to determine an antimicrobial agent is acting as a cidal or static agent.

A: Bactericidal ("cidal") antibiotics kill bacteria without relying on the patient's immune system. A…

Q: Which bacteria produce B-lactamase enzyme which is resistant to penicillin and why?

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

Q: What would be the expected out come of a triple sugar iron test If the bacteria is a pathogenic…

A: TRIPLE SUGAR IRON TEST 1.The Triple Sugar Iron test is a microbiological test having ability to test…

Q: Why is water tested for coliform bacteria rather than for pathogenic bacteria which may be present?

A: Water quality testing plays a crucial role in safeguarding public health and ensuring the safety of…

Q: If a bacterial isolate shows intermediate to moderate resistance to an antimicrobial, how might this…

A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…

Q: Why is Hydrogen peroxide solution so effective against anaerobes?

A: Hydrogen peroxide is a chemical compound that is acts as mild antiseptic. It is also an endogenous…

Q: If an unknown bacteria was given that was gram-positive coccus, and the catalase test was performed,…

A: Gram-positive bacteria, such as Staphylococcus aureus, are bacteria that provide a positive response…

Q: How did Georg Gaffky cultured Salmonella Typhi?

A: Salmonella enterica is a kind of bacteria. Typhoid fever is caused by a gram-negative bacteria…

Q: Is it possible for nonprotein compounds to test positive for the xanthoproteic test? What are these…

A: Proteins are made up of number of amino acids. Amino acids are organic compounds with two functional…

Q: Why is the effectiveness of an antimicrobial agent determined using an exponentially growing…

A: The bacterial cell reproduce asexually by replicating and dividing their genetic material as well as…

Q: What would be the expected out come of a phenol red test If the bacteria is a pathogenic intestinal…

A: Phenol Red Broth is a general-purpose differential test medium typically used to differentiate…

Q: What are the purposes of the antimicrobial agents present in the selectivemedia used for the…

A: the purposes of the antimicrobial agents present in the selective media used for the isolation of…

Q: What is the advantage in using LSTB in the presumptive test for the presence of coliforms?

A: LSTB has selective properties that favor the growth of coliform bacteria while inhibiting the growth…

Q: What would be the expected out come of a Nitrate reduction test If the bacteria is a pathogenic…

A: Nitrate Reduction Test is used to determine the ability of an organism to reduce nitrate (NO3) to…

Q: Could an organism that is susceptible to an antimicrobial agent in laboratory testing fail to…

A: To identify the acceptable antimicrobial agent and dose for treatment of microorganism infections…

Q: Do we have to do an antibiotic sensitivity test to ensure the result? and what is the type and name…

A: Antibiotic Sensitivity Test:  Antibiotic sensitivity testing, often known as antibiotic…

Q: If coliforms were present on a plated sample, would you know with certainty that the coliforms are…

A: Coliform microbes are characterized as rod-shaped, gram-negative, non-spore-forming, and…

Q: Why was a blood agar, rather than a nutrient agar, plate used for the culture from your mouth?

A: Cultured bacteria are any bacteria that grow in the lab by the microbiologist using the required or…

Q: FNA

A: The above test is called the COAGULASE test. The coagulase test is a experiment to determine whether…

Q: Under what conditions supplementation with probiotics might be recommended

A: Probiotics contain live bacteria or yeasts that are natural inhabitants of the human body. These…

Q: 1) What are all of the different colony types that can be seen on a mixed-culture streak plate?  2)…

A: Hi! Thanks for your question. As you have posted multiple questions, I am answering only the first…

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: If a bacterial species is not susceptible to an antibacterial drug at the concentration present in a…

A: Antibiotic susceptibility test is the test used to determine the effect of antibiotic to an…

Q: Why is washing with Hank’s balanced salt solution with 0.5% antibiotic-antimycotic done for…

A: A physiological saline solution known as Hank's balanced salt solution (HBSS) is used to keep cells'…

Q: what type of bacteria would be used to make sauerkraut?

A: Sauerkraut is product of cutting raw cabbage that fermented by various lactic acid bacteria. The…

Q: Why does the nitrate reduction tube turn red after the addition of zinc?

A: Nitrate reduction test is used to find the bacteria who have the ability to reduce the nitrate.

Q: What is the differece between disinfection and sterilization? What is the dfference between…

A: Disinfection and sterilization are essential for ensuring that medical and surgical instruments do…

Q: In the multiple fermentation tube technique does the absence of gas formation after 24 hours…

A: Coliform microbes are life forms that are available in the climate and in the defecation of all…

Q: Why are antimicrobials only directly effective against bacteria and what is the control on the…

A: Antimicrobials are agents that either kill microorganisms (microbicidal) or stop their growth…

Q: Use the photo below to measure the diameter of each antibiotic (all 3) and record the name and…

A: The microorganisms or bacteria are grown in the culture plate in the microbiology laboratory for…

Q: Is the Peptone Iron Agar (PIA) a complex or defined medium? Explain based on its composition. Is the…

A: Depending on their composition, media can be classified as defined and undefined media. Defined…

Q: What is the principle involved in the Acrolein test? What is its purpose?

A: Qualitative tests are the chemical or physical tests involved in identification of certain…

Q: Changes in the bacterial genome can lead to resistance

A: Antibiotic resistance is the resistance developed by the bacteria for the particular drug that is…

Q: name two antimicrobials and explain whether the organism was susceptible, intermediate, or…

A: We know, the Antibiotic prevent or stops the growth of microorganisms. Information on the minimum…

Q: Is bile esculin test a efficient test for unknown intestinal bacteria?

A: In the intestine, only those bacteria that are not killed by the bile survive. The normal bacteria…

Q: What is the relationship between dilution factors and the efficacy of antimicrobial agents in…

A: The relationship between dilution factors and the efficacy of antimicrobial agents refers to the…

Q: Why are traditional tests such as metabolic test not always used to ID clinically important…

A: Traditional methods for identification of microbes include phenotypic tests or biochemical tests…

Q: What is the best lab test to perform for a unknown intestinal bacteria?

A: Bacteria found in the intestine or colon region of the digestive tract since the pH of the stomach…

Q: What are the examples of organisms that belong to the positive test in in-dose test?

A: Tryptophan is an amino acid that can undergo deamination. Indole is generated by reductive…

Q: Attached below is the study about the effects of handwashing and the effectiveness of soap against…

A: We only become aware of the significance of handwashing during pandemics. However, its advantages…

Microbial Growth

The development of microbial growth is influenced by various natural conditions (both physical and synthetic) like pH, temperature, saltiness, gas focus (O2, CO2, and H2), nutrients, water action, and assimilation. Knowing the distinctive physical and chemical factors that influence the development and endurance of microbial growth in the climate will assist with reinforcing endeavors outfitted towards their control. These lines lessen or diminish their harmful impacts on humankind, creatures, and the climate.