holsappleeus scarius is a normal flora of the human intestenal tract. its facultative anaerobe capable of catabolizing carbohydrates. which conditions will give them the most growth?
Q: Which antimicrobics would be suitable for the control of the following organisms?S. aureus:E.…
A: Bacteria are single-celled and very small organisms. They found in water, human gut, soil, air,…
Q: Coliform bacteria are common contaminants of meats. Why might one expect to find coliforms in…
A: Coliform bacteria is a Gram negative, rod shaped bacteria which when present in water will indicate…
Q: Many antibiotics used in modern medicine are compounds made by fungi that inhibit bacterial protein…
A: Antibacterials are used to treat bacterial infections. Antibiotics are classified generally as…
Q: Based on the following image, which concentration of antibiotic would be considered the minimum…
A: Minimum bactericidal concentration (MBC) is defined as the lowest concentration in which an…
Q: Klebsiella pneumoniae, a gram negative, lactose-fermenting, non-motile bacilli once plated in…
A: Bacteria are ubiquitous Prokaryotic microbes that are classified on basis of gram staining,…
Q: Which of the following is taken up by M cells of the large intestine, escapes out the bottom of the…
A: Shigella: A bacillary dysentery, a disease provoking severe bloody and mucous diarrhea…
Q: Your instructor asks you to explain why the Streptococcus speciesthat are catalase negative are…
A: Bacteria are prokaryotic organisms that have an undefined nucleus and nuclear membrane. Most of the…
Q: Helicobacter pylori survives in the acidic environment of the human stomach, but this organism is…
A: Helicobacter pylori is a neutrophilic bacteria i.e. it loves the neutral pH and is able to survive…
Q: After comparing the growths on the two plates of Brewer’s anaerobic agar with the growths in the six…
A: Anaerobic agar is used for anaerobic microorganisms cultivation. The anaerobic bacteria are not…
Q: Determine the optimal pH (or range of pH) for: Escherichia coli and Staphylococcus aureus
A: Several factors like temperature, pH ,food etc determine the growth and survival of an organism.
Q: Account for the ability of streptococci to tolerate O2 in the absenceof catalase activity
A: Bacteria are prokaryotic organisms that have an undefined nucleus and nuclear membrane. Most of the…
Q: Pseudomonas is a gram-negative rod-shaped bacterium, sometimes inhabits the intestinal tract, and…
A: Gram negative bacteria are those bacteria which does not retain the crystal violet stain used in the…
Q: If Clostridium botulinum is an anaerobe, how might botulinum toxin get into food?
A: Answer: Clostridium botulinum is the bacteria which is responsible to cause botulism in humans. This…
Q: Which of the following is capable of oxidizing elemental sulfur to sulfates? Bacillus GSB and PSB…
A: Plants and animals require a continuous supply of sulphur and its compounds in order to synthesise…
Q: Which carbohydrate is fermented by all coliforms? ______________________________ Which bacterial…
A: Coliforms :- Coliform bacteria are microscopic organisms that live in the intestines of…
Q: Use the following chart (dichotomous key) to identify the enteric bacterium A, B and C: (5 marks)…
A: To identify: To identify the enteric bacterium A,B and C using the given chart.
Q: Identify the microbe: A. GPC, Catalase (-), alpha hemolysis, P disk (R), Bile solubility (-), PYR…
A: The Microbes given are gram-positive bacteria. Various tests are performed to identify the…
Q: Describe how each of the following would appear when grown on EMB agar: a. Escherichia coli b.…
A: EMB stands for Eosin Methylene Blue. This media is used as a seletive stain for the gram negative…
Q: Which would be more likely to cause illness and why—a water sample that tested positive for fecal…
A: Ans: Escherichia coli is the gram negative organism which forms part of normal flora of humans.
Q: A patient with stomach ulcers was treated with antibacterial antibiotics for H. pylori infection and…
A: Introduction: Ulcers: Ulcers are explained as the sores on the lining of the stomach or small…
Q: Describe the metabolism for each of the following Bacteriaand state whether the organism is an…
A: Bacteria are single-celled prokaryotes ubiquitous in nature. As such, they can be found in different…
Q: Escherichia coli but not Pyrolobus fumarii will grow at 40°C,while P. fumarii but not E. coli will…
A: Escherichia coli is a Gram-negative, rod-shaped, facultative anaerobic bacteria. It usually inhabits…
Q: rum 2. Metallosphaera sedula 3. Lactobacillus acidophilus
A: Metabolism is a term that refers to all chemical events that take place in order for cells and…
Q: hich of the following microorganisms has not been linked to UTI’s? E. coli Pseudomonas…
A: A urinary tract infection (UTI) is a bacterial infection that affects the urinary tract. This sort…
Q: Campylobacter and Heliobacter are both members of the class epsilonproteobacteria. Which structure…
A: Both bacteria are gram negative, motile, rod shaped and microaerophilic.
Q: What makes the cell wall of Listeria monocytogenes interesting in regard to the Gram-negative cell…
A: Listeria Monocytogenes : It is a gram positive bacteria. This bacteria can grow at temperature…
Q: Why are most pathogens mesophilic?
A: The mesophilic bacteria include the group that grows at moderate temperature i.e. 20 C to 45 C. The…
Q: Expalin in detail the statement given, "Refrigerating food prevents the growth of all bacteria", is…
A: Microbes, also referred to as microorganisms, are invisible to the unaided eye. They can generally…
Q: Why are some microorganisms capable of utilizing certain carbohydrates and some are not?
A: A microbe is a living entity that is so tiny that it cannot be seen with the naked eye. Microbiology…
Q: Explain how bacteria can become resistant to ampicillin. Be sure to mention the following terms:…
A: Antibiotic is an anti-microbial substances which kill or restrict microbial growth. Their…
Q: The gram negative unknown organism that is Enterobacter aerogenes? What kind of the shape of…
A: Enterobacter aerogenes is a proteobacteria which belongs to Enterobacteriales and family…
Q: Why are amino acids solid at room temperature?
A: Since you have posted multiple questions, we solve the first question for you. To get the remaining…
Q: Explain the role of pylori in the pathogenesis of peptic ulcers. Which populations are most…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Staphylococcus aureus is non-motile, a facultative anaerobe, and a mesophile. At 37⁰C in abundant…
A: Staphylococcus aureus This is a Gram positive bacteria having rod shape. It is commonly found in…
Q: In the Mannitol Salt Agar, why is there no observed growth of Escherichia coli?
A: In microbiology, mannitol salt agar is a typical growth media. It promotes the development of one…
Q: Coliform bacteria are common contaminants of meats. In terms of food safety, why is it suggested to…
A: Coliform are rod-shaped gram-negative bacteria present in the intestines and feaces of may of the…
Q: Lactobacillus acidophilus ferments glycogen produced by the vaginal epithelium forming ________…
A: The question asks to fill the following blank:Lactobacillus acidophilus ferments the glycogen that…
Q: Match the microorganisms in column A with their corresponding product in column B, then match your…
A: A B C 1. B. subtilis H. Amylase I. Primary metabolite 2.…
Q: Can lactic acid culture infect the human gastrointestinal tract? If yes, why is this method not used…
A:
Q: Why does Bacillus subtilis break down phenol better even at high concentrations than E. coli and…
A: Phenol is distributed either as natural or artificial mono-aromatic compounds in various…
Q: Describe the proteins produced when cells ofEscherichia coli experience a heat shock. Of what…
A: Under a wide range of stress conditions like physicochemical factors influence the production of…
Q: Provide picture of the following microorganisms: 1. a. Cyst form (Early stage) of Escherichia coli…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: Every year, supposedly safe municipal water supplies causeoutbreaks of enteric illness.a. How in the…
A: Water pathogens enter the water sources by faecal contamination. When the infected person or animal…
Q: Superoxide ion is toxic to strict anaerobes because they lacka. catalase b. peroxidase c. dismutase…
A: A superoxide basically is a compound that do contain the superoxide ion, having the chemical…
Q: Which of the characteristics identified using SIM media, which would be most useful in…
A: SIM agar media is referred to as a sulfur or indole or motility test combined in one agar deep if…
Q: hat type of microorganism is Entamoeba histolytica
A: A microorganism, sometimes known as a microbe, is a microscopic organism that can exist as a single…
holsappleeus scarius is a normal flora of the human intestenal tract. its facultative anaerobe capable of catabolizing carbohydrates. which conditions will give them the most growth?
Step by step
Solved in 2 steps
- clostridium botulinum is a bacterium usually present in soil that may cause botulism. Briefly explain why one or few cells of a pathogenic bacterium, such as clostridium botulism, by itself typically does not secrete a toxin, despite the species as a whole being characterized as toxin producing.Raw poultry can carry Salmonella or Campylobacter bacteria, both of which produce toxins that can cause serious diarrhea, among other symptoms. Aside from the discomfort, why does such an infection require immediate medical attention?you grew streak plates of Clostridium sporogenes under both aerobic and anaerobic conditions. Which plates showed bacterial growth, and what does the zone around the metronidazole disc represent? Additionally, explain what types of bacterial growth metronidazole affects and why.
- Mutant strains of Helicobacter pylori that lack the ability to produce urease fail to cause infection when they are swallowed. Infection occurs, however, if a tube is used to introduce them directly into the layer of mucus that overlies the stomach epithelium. What does this imply about the role of urease in the bacterium’s pathogenicity?In patient with Maple Syrup Urine Disease, what specific amino acids should be not used in order to ameliorate the existing diseases condition? Why have you selected these amino acids?The general public takes for granted the link between an infectious agent and a given infection Discuss the requirements established by Koch, the nineteenth-century German scientist, before ascertaining, for instance, that Helicobacter pylori bacterium is the cause of the gastric ulcer. Why is it so essential to meet these conditions?
- Consider a gram-negative pathogen isolated from marine mammals. This pathogen is subjected to a series of tests and found to have the following characteristics: oxidase-positive, does not hydrolyze urea, produces indole, does not produce acetoin. Which of the following could it be? O Pasteurella mulocida O Klebsiella pneumoniae O Yersinia enterocolitical O Mannheimia haemolyticaCan lactic acid culture infect the human gastrointestinal tract? If yes, why is this method not used to treat lactose-intolerant individuals?Micro -endotoxin refers to which type of molecule found in (unique to) gram negative bacteria ..... ( it is not lipopolysaccharide)
- Explain the role of pylori in the pathogenesis of peptic ulcers. Which populations are most susceptible to peptic ulcers? Is H. pylori normal flora? If so, what causes the species to become pathogenic? Construct at table to compare and contrast the 5 steps of microbial pathogenesis. How does extracellular growth differ from intracellular growth? Diagram the 5 step pathogenesis cycle for coli O157:H7, an extracellular, intestinal pathogen acquired by consuming contaminated food/water. Be sure to include the role of exoenzymes and the Shiga exotoxin in your diagram. (2 points) Explain the pathogenesis of Listeria monocytogenes. Be sure to include temperature regulation, intracellular growth, and at risk groups in your discussion.The large intestine contains bacteria, such as E.coli, that synthesize vitamin K and some B vitamins and absorbed into the bloodstream. Answer the following questions: 1. Describe the type of symbiosis best represented by E.coli and human large intestine. 2. When can E.coli become potentially pathogenic (disease-causing)? Explain briefly.Pseudomonas is a gram-negative rod-shaped bacterium, sometimes inhabits the intestinal tract, and considered an important cause of urinary tract infection and sepsis, however, it is not a member of family Enterobacteriaceae. Discus this statement, keep your response within 80-100 characters limit.*