How is UV radiation a good type of control mechanism against microbial growth? Please explain what happens to the microbe and effects this control causes.

Q: A food sample with an unknown number of contaminating bacteria was serially diluted to 10-6. A…

A: Serial dilution of a food sample containing unknown quantity of contaminating bacteria was performed…

Q: Choose the false statement below. O High efficiency particulate air filters or HEPA filters are…

A: Sterilization is a process of complete destruction or inactivation of bacteria or pathogens. It…

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: bacterium is grown in an environment with tryptophan added to the medium.  Describe how the bacteria…

A: Tryptopham  is an amino acid and is a necessary ingredient to  synthesise its protein. There are…

Q: What statement correctly explains why moist-heat is more effective than dry-heat for sterilization…

A: The aseptic technique is devoid of any organism that is achieved in laboratory set-up through…

Q: Does the Gram stain provide information regarding a bacterium's susceptibility to antimicrobial…

A: The Gram stain is performed for the determination and classification of the bacteria. In Gram…

Q: Why bleach disinfectant will the most effective against probiotic?

A: Probiotics are live microorganisms that have health benefits when consumed. These are usually…

Q: Microbial growth is measured by what parameter?(a) Increased cell size(b) Increased size of cellular…

A: The term microbial growth can be defined as the growth of the population or an increment in the…

Q: If lysozyme is added to a microbial culture. Predict what will be observed if the culture is…

A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…

Q: egorise the microbial growth into four phases. In your own words, briefly describe eac

A: An organism that is microscopic is known as the microorganisms. These are tiny , small organisms…

Q: In the laboratory, autoclaving is required to prepare media for the growth of What type of method of…

A: The most effective method by which we sterilize the laboratory instruments is known as autoclaving.

Q: The mechanical removal of microbes from a limited area of living tissue is referred to as -- a.…

A: Control of microbial propagation is very significant in medical, pharmaceutical, food industries,…

Q: how can ultraviolet  be used to control microbial growth. which specific UV can be used to control…

A: Ultraviolet (UV) - non-ionizing radiation. - penetration power is less. - It is a physical mutagen.

Q: Why do you think an infection from gram-negative bacteria can be more diff treat with drugs than a…

A: There are two types of bacteria depending upon their cell wall. Gram positive bacteria are known as…

Q: A Pure colony is needed for inoculation in sterile water, a small portion of culture media was…

A: Introduction  Culture is referred to the process of growing the cell outside the animal or plant…

Q: Identify two factors that make biofilms more tolerant to antimicrobials and make sure to include…

A: Two factors that make biofilms more tolerant to anti-microbial and make sure to include their mode…

Q: Explain why sulfa drugs prevent bacterial growth without harming the human host.

A: Antimicrobial drugs are those which destroy or inhibit the growth of microorganism. They have their…

Q: Why does a population of microbes not die instantaneously when exposed to an antimicrobial agent?

A: Antimicrobial agents are agents that are used to stop or prevent the growth of microbes. They…

Q: Many people use antimicrobial soap to kill bacteria on their hands. However, overuse may increase…

A: Antibacterial soap is a soap which contains chemical ingredients that purportedly assist in killing…

Q: How alcohol is effective at contolling microbial growth?

A: Sterilization: Sterilization includes the complete wipeout of all microscopic life on a surface.…

Q: As a Microbiologist working on a bioremediation project, you are torn between 2 choices for…

A: The process of bioremediation, defined as the use of microorganisms to detoxify or remove pollutants…

Q: Media is TGA explaining based on what kind of microorganisms it allows to grow?

A: TGA is a complex media based upon its chemical composition. Complex media are the media in which the…

Q: Which of the letter labeled microbes is exhibiting gamma-hemolysis? O Both Microbes A and B O…

A: Blood agar is an example of enriched medium that has multiple nutrients and is used as a basal…

Q: List down at least 5 products of industrial microbiology. Also, give info about the organisms and…

A: Industrial microbiology is the branch of biology that deals with the commercial-scale production of…

Q: Microscopic count is used to estimate microbial load of a sample by counting colonies present on the…

A:

Q: Phenol Red Test Question:

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

Q: Give a brief but critical discussion about microbial growth in natural environments and how it…

A: Living creatures reproduce and grow. Microbes become metabolically active and proliferate when they…

Q: Taking microbial cells out of a stationary phase culture and putting them into a fresh, sterile…

A: Growth in higher organisms refers to a rise in size and volume, whereas growth in bacteria refers to…

Q: placing bacteria at ultracold temperatures is as effective at killing microbes as the use of dry…

A: true

Q: The picture shows bacteria (Escherichia coli) under a microscope Do you bacterial growth or no (…

A: * Escherichia coli is a rod shaped gram negative bacteria present in human intestine. * E coli…

Q: Some antibiotics show no zone of inhibition against the microbe. How is this possible? Explain how…

A: Zone of inhibition The Zone of inhibition, it is a area around  the antibiotic drug which inhibit…

Q: Screening is a selective procedure to allow the detection and isolation of only those microorganisms…

A: Process of screening required two steps: primary screening secondary screening Detection and…

Q: Is UV treament more or less effective than disinfection when used against Saphylococcus aureus?

A: Saphylococcus aureus is a gram-positive bacterium that is found in the human nose, skin, and…

Q: Which of the following statements regarding microbial control agents is FALSE?   Question options:…

A: all of these statements are TRUE.

Q: A chemical, produced by a microbe to inhibit the growth of other microbes, is isolated and then…

A: Microbes are prokaryotic organisms which live with other microbes in an environment. Some microbes…

Q: Why does saliva not serve as a good microbialgrowth medium?

A: Saliva is the watery, frothy substance that is produced in the mouths of some animals, including…

Q: Agar is a complex polysaccharide obtained from seaweed and cannot be digested by most…

A: Growth media is the nutrients rich medium that helps in the growth of several bacteria and other…

Q: What microbe requires serum components to be added to the growth medium?

A: Introduction Microorganisms:- An organism that can be seen only through a microscope, They live in…

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: There are various environmental factors that can influence microbial growth and reactions. These…

A: The most necessary physical factors are pH, temperature, oxygen, pressure, and salinity. pH measures…

Q: how is UV radiation a good type of control mechanism against microbial growth?please expalin what…

A: Humans have used various physical methods of microbial control for food preservation. Common control…

Q: Why is low microbial population in milk samples a limitation for microscopic count?

A: The bacteria present in milk are lactococcus , lactobacillus, streptococcus, leuconostoc and…

Q: Why is the sterilization important in healthcare system and can you give briefly explain?

A: Medical sterilization mainly makes use of three important terms such as sterilization, disinfection…

Q: List 5 other methods of sterilization and describe the principle/s and when each method is used.

A: (Please note that, you provided more than one question, I can only answer one question at a time,…

Q: Tell me three things about microbial metabolism and growth?

A: Microbial metabolism refers to how a microorganism acquires the energy and nutrients (such as…

Q: Many antimicrobial drugs target bacterial.metabolism. Which phase of microbial growth would be best…

A: Log phase