A selective media  a) inhibit the growth of certain bacteria while allowing others to grow b) allow for visual distinction of the ability to perform a specific biochemical process c) Will only grow Gram-positive bacteria d) allow just the bacteria to grow

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: hat is the advantage of culture-independent analysis over culture-dependent analysis of…

A: An unknown microorganism can be identified and classified in a variety of ways. They are divided…

Q: Is the Tryptoc Soy Agar (TSA) a complex defined medium? Explaining based on its composition?  Is TSA…

A: Trypticase soy agar  (TSA) and Trypticase soy broth is a growth media for the culturing of bacteria.

Q: What are biofertilisers? A farmer is advised to add a culture of bacterium in the soil before sowing…

A: A fertilizer is a substance which is applied to soil or plant to increase the soil fertility or…

Q: What kind of medium might you make to selectively grow a bacterium that lives in your gut?

A: MacConkey agar is used as a selective and differential media for differentiating gut bacteria which…

Q: Would culture human cells be classified as a biohazard?

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

Q: Describe what happens in an E. coli bacterium that has been living on the top of your fridge for the…

A: Glucose is the first carbon source used by bacteria if the glucose is present in the medium…

Q: Why do we test water for coliforms if they are not considered pathogenic?

A: Introduction Coliforms are gram-negative, non-sporulating and motile or immotile bacteria. They…

Q: Can a bacterium be positive for both MR and VP? explain

A: MR(Methyl Red) test is performed to detect glucose fermenting bacteria. The MR test acts as a pH…

Q: What are bioreactors ? How are large volume of culture maintained and processed in them ?

A: A bioreactor is a system that enables organisms (such as yeast, bacteria, or animal cells) to…

Q: Explain the purpose and phase where cells lose flagella and motility in biofilm formation, and why…

A: There are several steps associated with the biofilm formation. The first step includes adherence of…

Q: Summarize the terms used to characterize microbes based on they physical growth factors including...…

A:

Q: Summarize the terms used to characterize microbes based on their  physical growth factors;  1. pH…

A: 1. pH  Acidophiles are those microorganisms that are able to survive in extremely acidic conditions…

Q: What are the advantages of UV disinfection versus, or as acomplement to, chemical disinfection with…

A: UV disinfection treatment is a very rapid physical process for disinfecting or sterilizing any…

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: What are the physical requirements that must be considered when trying to grow microbes?

A: A technique which is used for growing the microorganisms in an in vitro condition is referred to as…

Q: Why is it important to use sterile practices when working with microorganisms?

A: Microscopic organisms such as bacteria, fungi (mold and yeast), protists, archaea, algae,…

Q: Why might viable cell cultures be of more use in microbialtaxonomy than preserved specimens?

A: Microbial taxonomy is a field of biological sciences that deals with the grouping of microorganisms…

Q: why do We need to Wait for the iron Agar to set and then Add another thin layer of 45°C Iron Agar?

A: The test that uses iron agar is the Triple Sugar Iron (TSI) Test and is used to determine the…

Q: If you had a mixed culture that contained a Gram-negative enteric bacterium and Gram-positive…

A: MSA or mannitol sale agar used in microbiology. It encourages growth of some group of bacteria…

Q: What would you expect to see if you cultured Gram-positive, lactose-fermenting bacteria on MacConkey…

A: Given: What would happen if you culture gram positive, lactose fermenting bacteria in MacConkey…

Q: Besides being able to tolerate a range of pH some bacteria change their environment by producing…

A: Due to metabolic activities of the bacteria/microbes, different bye-products are produced which…

Q: Why is it critical to be able to determine the overall number of bacteria present in a food sample?

A: Hi, Thanks For Your Question.  Answer : Monitoring Of Total Bacterial Count Is Necessary, Because…

Q: How does the extremely high resistance of bacterial endospores influence sterilization practices,…

A: Endospore refers to a nonreproductive, dormant composition generated by some kind of bacteria. It…

Q: During the fall 2001 bioterrorist attack in which anthrax endospores were sent through the mail, one…

A: Introduction: Spores are the extremely resistant resting-state that are made at the time of…

Q: what type of bacteria may cause spoilage in coconut water that has been in the fridge for more than…

A: Coconut Water   Coconut water (CW) is a slightly sweet liquid made from the endosperm of coconuts.…

Q: What information can obtain from observing the growth of bacteria on liquid agar?

A: Liquid agar is a liquid media mixed with agar which when heated solidifies and then is used as a…

Q: In which of the four phases of bacterial growth would an antibiotic best work?

A: Bacteria are microscopic, single-celled organisms. we can not see bacteria through naked eye. Some…

Q: If a component is heat sensitive, how might you conveniently achieve sterility of that medium? a.…

A: Option A i.e. filtration

Q: What information can obtain from observing the growth of bacteria on solid agar?

A: Agar is a jelly-like substance, obtained from rhodophyceae that are commonly knows as the red algae.…

Q: Name two biological processes that operate in a fixed film-growth mode?

A: This model considers secondary clarifier at a rural sewage treatment plant which is a typical phase…

Q: how often must bacteria be subcultured from a broth to maintain culture viability?

A: Answer: Sub-culturing is the method of regrowth of the bacterial cells in to a freshly prepared…

Q: Why does dry heat require higher temperatures for longer time periods to sterilize than moist heat

A: Sterilization may be defined as the process which help in the complete removal of all…

Q: Why must you first clean debris from items before beginning disinfection or sterilization? (

A: Until the discovery of the microbes by the famous scientist Louis Pasteur, one of the signs of the…

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: Why do microorganisms grow more slowly as the pH deviates from their optimum growth?

A: Growth is acheived when bacterium is grown in liquid medium and is subjected for incubation. After…

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: Can simply observing the colonies formed on agar plates and the results of a few biochemical tests…

A: Bacteria are of many types. They can be classified based on different properties such as cell wall…

Q: Which of the following control agents help to be used to achieve sterility? - Virucide - Sporocide…

A: Sterilization can be achieved through various means, including heat, chemicals, irradiation, high…

Q: How can organisms develop resistance to chemical disinfectants?

A: Bacteria can develop resistance to disinfectants over time either by acquisition of exogenous mobile…

Q: Why should you filter some liquids for sterilization, rather than autoclaving them?

A: To control microbial growth or contamination there are a number of aseptic techniques developed that…

Q: What medical challenges do biofilms present?

A: Biofilms are microbial colonies that are linked to one another and enclosed in an exo-polysaccharide…

Q: What is agar define as in microbiology ?

A: Microbiology is defined as the study of microbes. It involves the study of structure, function and…

Q: ar contains salt to prevent the growth of most microbes and mannitol plus a pH indicator to detect…

A: In order to produce and culture different types of microbial species, a culture media is required.…

Q: explain Bacterial cultures.

A: Bacterial culture is a microbial test to determine the type of organism, its abundance in the sample…

Q: Write the limitations of sterilization by Dry heat?

A: The dry heat sterilization technique includes the removal or killing the microorganism and require…

Q: What is the difference between a disinfectant and an antiseptic?

A: As per our company's guidelines we are supposed to answer single question at a time, please repost…

Wound infections

A wound is damaged or breaks in the surface of the skin. The wound is divided into two types, they are acute wound that includes minor cuts, laceration, bites, etc, and chronic wounds that can become slow to heal including ulcers on the legs and feet. Redness, pain, and swelling are signs of a wound.