During the fall 2001 bioterrorist attack in which anthrax endospores were sent through the mail, one news commentator suggested that people should iron all their incoming mail with a regular household iron as a means of destroying endospores. Would you agree that this is a good way to disinfect mail? Explain your answer. Which disinfectant methods would be both more effective and more practical?

Q: review the case scenario uploaded in the photo.  in your own words: a) write a hypothesis for…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: enrichment culture to isolate aerobic and anaerobic nitrogen-fixing bacteria, sulfate-reducing…

A: Enrichment culture:  This type of culture containing  certain growth media ,allows  and  favours the…

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: 6) In fruit flies, red eyes are dominant (E). White eyes are recessive (e). If the female fly has…

A: If only one copy exists, dominant characteristics are always produced when the linked allele is…

Q: You are interested in obtaining Staphylococcus aureus for a study investigating the prevalence of…

A: S.Aureus is the most common cause of abscesses, furuncles, and cellulitis in the skin and soft…

Q: Microbiology Exotoxins can be the following EXCEPT A) they are LPS/lipopolysacharride B) they are…

A: The substances produced by bacteria or any living organism which in contact with tissues can cause…

Q: If these cells are actually Gram +, which of the following likely occurred during the staining…

A: The Gram's method may be a standard laboratory method wont to divide bacterial species into two…

Q: How does the microscopy in Figure 2 show that the capsule and an S-layer can exist in the same cell…

A: Surface layer (S- layer) is the self assembled monomeric proteins forming to protect the surface of…

Q: All bacteria produce spores. a) Trueb) False

A: Bacteria are the most important microorganisms to the food processor. Some bacteria are beneficial…

Q: Drying is an effective antimicrobial strategy because:(a) It oxidizes cellular macromolecules(b) It…

A: Answer is b.) It limits the amount of water available to microbes.

Q: What is the difference between sterilization and disinfection? For lab applications which is…

A: Microbes are often killed in lab techniques to prevent contamination and ensure the accuracy and…

Q: Which of the following is false?a) A high-level disinfectant cannot be used as a sterilant.b)…

A: According to the risk for transmitting microbial infections, the medical instruments are classified…

Q: Both ethanol and trimethyldodecylammonium chloride are active ingredients in cleaning products used…

A: Ethanol and trimethyldodecylammonium chloride are chemicals that are used in laborotories for many…

Q: Which of the following treatments directly destroys microbial cells living on animal tissue?…

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

Q: In light of the COVID-19 pandemic many people are more conscious about cleaning their household…

A: During this amid Covid-19 pandemic, it has become very important to keep ourselves and environment…

Q: Which of the following methods of control kills the microbe? a) incineration b) desiccation c)…

A: Introduction Microorganisms are referred to as that organism that is single-celled and can only be…

Q: One of the following is considered as Fastidious bacteria: Select one: Staphylococcus spp.…

A: Bacteria are usually single-celled microorganisms that can be present everywhere. They are…

Q: According to USP Chapter , allergenic extract preparation can be made in a doctor’s office facility…

A: The United States Pharmacopeia (USP) has created a set of rules and recommendations known as USP…

Q: It is a couple of years in the future and you have taken a job as a WSU lab prep assistant. You are…

A: Microbes or microorganism are found all over the world in diverse types, and these are microscopic…

Q: Suppose you spilled two cultures of Salmonella typhimur-ium (each containing 100,000 cells) on your…

A: A microbiological culture refers to the method in which microbial organisms multiply in number by…

Q: The inhibition of bacterial growth and reproduction without necessarily destroying the organisms is…

A: The growth and reproduction of bacteria depends on saveral factors. For the inhibition of the growth…

Q: Name 4 different sterilization/disinfecting methods, how they fight microbes,

A: STERILIZATION :  It is the process in which removal of all the living forms (microorganisms) and…

Q: Amikacin Antimicrobials Amoxicillin/clavulanate Ampicillin Cefazolin Cefepime Ceftriaxone…

A: Excessive Zn++ in the medium can have various effects on different groups of living organisms.…

Q: Identifying an unknown bacterium is an essential step in the diagnosis and treatment process. Since…

A: An antibiotic is a type of medication used to treat bacterial infections. It works by either killing…

Q: Commercial canning processes are designed to ensure destructionof which of the following?a) All…

A: The process of canning is performed to eradicate the harmful pathogens from the packed food. The raw…

Q: 44. The use of chemical agents to kill or inhibit the growth of microorganisms within their host’s…

A: The answer is d) chemotherapeutic, and here's a breakdown of why the other options are less…

Q: If you irrigate a wound with hydrogen peroxide it will bubble. What causes the bubble even if the…

A: Hydrogen Peroxide is an antiseptic that is used in the skin to prevent certain infections when there…

Q: The process in which all organisms and pathogens are destroyed is called ------.  a) Disinfection…

A: Microbes are responsible for various diseases in humans as well as animals.Microbes and pathogens…

Q: which agent was most effective against the spore-forming bacteria that was tested? How does the…

A: Microorganisms, such as bacteria, viruses, and fungi, are ubiquitous in our environment. Many of…

Q: Which one of the following is the most resistant microorganism for sterilization: Select one: a.…

A: Microorganisms vary in their degree of susceptibility to disinfectants. Species such as Mycobacteria…

Q: You have learned many different techniques so far this semester that allow us to identify pathogenic…

A: A pathogen is an organism that causes illness in its host, with virulence referring to the intensity…

Q: Describe the shape and color of the following species of bacteria after Acid-Fast staining: E. coli…

A: Acid fast staining is a type of laboratory test that is used to determine if a sample of blood or…

Q: -For each item listed below, select a sterilant that you feel is the most suitable and effective for…

A: A growth medium is intended to promote the growth of a variety of microorganisms or cells by the…

Q: The following pictures show the results of a Disk Diffusion Assay for different types of bacteria.…

A: Disk diffusion assay is a laboratory test used to determine the effectiveness of antimicrobial…

Q: Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily…

A: A biofilm is thin but a robust layer of mucilage , adhered to a surface like human skin , tooth ,…

Q: You are hired in one of the microbiology labs in Memphis and your first assignment to identify…

A: As a microbiologist working to identify microbial samples from a local restaurant, the…

Q: Besides dehydrated foods, how might the amount of water available to microbes be decreased? Group of…

A: Dehydration is a method that has been used for centuries to preserve foods such as raisins, etc. It…

Q: 1)Do you think that public health officials should more directly regulate the availability of…

A: A disease is a specific abnormal disorder that affects the structure or function of any or part of…

Q: he following are the steps, listed in random order, for utilizing koch's postulates. what should be…

A: Koch's postulates were created in the nineteenth century as a set of basic instructions for…

Q: A veterinarian suspects that a new disease of house cats is caused by a specific type of bacterium.…

A: The germ theory of disease was given by a German scientist named Robert Koch. He, in his theory,…

Q: Unlike a disinfectant, an antiseptica) sanitizes objects rather than sterilizes them.b) destroys all…

A: Pathogen are the organisms that can cause disease or infections after invading the host cells and…

Q: which handwashing treatment produced the highest number of colonies on the after side compared to…

A: ANSWER) Handwashing is necessary technique used for the prevention of entry of microbes into the…

Q: Why is it best to use sterile distilled water in the preparation of microbial suspension and dry…

A: Smear preparation is the first step carried out during the staining procedure.