Q: explain that Staphylococcus aureus is gram positive
A: Staining : It is a biochemical technique of coloring specimens. To stain these specimens dyes are…
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A: Bricks likewise score high corresponding to the climate, as they are made from natural materials…
Q: Considering that Staphylococcus epidermidis does not typically cause disease in a healthy person,…
A: Plasmids are small, self-replicating, extrachromosomal, circular double stranded DNA molecules…
Q: A patient was infected with E. coli, a gram negative bacteria. After taking a first dose of…
A: E. coli is gram-negative bacteria that usually causes diarrhea. The difference in cell wall i.e. the…
Q: Which of the following contribute to a pathogen's invasiveness? endotoxins hyaluronidase F…
A: The disease causing organism is called a pathogen. The ability to cause disease is called…
Q: Which of the bacteria would likely carry an endotoxin? Mark all that apply - Shigella sonnei -…
A: Bacteria are prokaryotes without any cell organelles or well defined nuclear region. They are mainly…
Q: Which microbe requires serum components to be added to the growth medium?
A: Some microbes are nutritionally fastidious and hence needs some substances to be added to the growth…
Q: you worked for a school confronting an outbreak of S. aureus, how would you determine whether the…
A: An outbreak of staphylococcus aureus could become very dangerous specifically is the strain that was…
Q: Pseudomonas aeruginosa is a rod-shaped bacterium which causes Pner
A: Pseudomonas aeruginosa may be a common encapsulated, gram-negative, facultatively aerobic,…
Q: Salmonella typhi is a facultative anaerobe. Explain comprehensively.
A: The group Enterobacteriaceae includes the genus Salmonella, which consists of microorganisms linked…
Q: Salmonella typhi is a facultative anaerobe. Explain why.
A: Salmonella is a genus of Gram-negative bacteria that are rod-shaped (bacillus) and belong to the…
Q: Colonies of Bacillus cereus on (A) agar plate
A: Bacillus cereus it is gram positive, rod shaped , facultative anaerobic, spore forming, motile and…
Q: Agar- agar is obtained from --------a) Ulothrixb) Spirogyrac) Gracillariad) Nostoc
A: Answer is c.) Gracillaria.
Q: Why do gram-positive bacteria not produce endotoxins?
A: ExotoxinsThey are proteineous substances that are produced within the bacterium as a byproduct of…
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: Given that so many infections are caused by gram-negative opportunists, what would you predict will…
A: AIDS, also known as (acquired immunodeficiency syndrome) is definitely one of the deadliest diseases…
Q: What are the characteristics of Pseudomonas aeruginosa that makes them resistant to iodophor?
A: Pseudomonas aeruginosa commonly occurs in soil and water. These bacterial infections if happen to a…
Q: How would you devise a selective medium for Vibrio cholerae?
A: Mostly for selecting the agar medium as a enrichment broth, alkaline peptone water and thiosulfate…
Q: why is microalgae spirulina is most commonly used to reduce air pollution?
A: Pollution is the presence of harmful substances in the environment. These harmful substances are…
Q: Using a microscope, could you differentiate a coccus from aspirillum? A pathogen from a nonpathogen?
A: A microscope is an instrument used to see the particles or objects of very small size to be the…
Q: Why are certain gram-negative bacteria more resistant than gram-positive bacteria to antimicrobials…
A: Gram-negative bacteria are characterized by the presence of thin peptidoglycan cell wall. The…
Q: Compare and contrast the virulence factors associated with Staphylococcus aureus and Streptococcus…
A: Streptococcal infections more dangerous than staphylococcal infections as the former can cause acute…
Q: Selecting the Exception Four of the five answers listed below are usually considered pathogenic.…
A: There are many microorganisms around us. Some of them are beneficial and some of them are harmful…
Q: Phenol Red Test Question:
A: Phenol Red Broth is a differential test medium typically used to differentiate gram-negative…
Q: Which environment would a capnophilic bacterium like the best?
A: Microorganisms can be classified according to their requirements for growth. All the need and…
Q: Which common hospital pathogen is able to grow abundantly in soap dishes?
A: The most common type of the prokaryotes is bacteria. They are found in every existing environment on…
Q: Staphylococcus
A: Staphylococcus or the staphylococcus aureus is extremely halotolerant bacteria.
Q: what treatment can kill the positive result of staphylococcus aureus in a catalase method ?
A: If an organism produces catalase enzyme, then it is able to breakdown hydrogen peroxide into water…
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: How does Pseudomonas aerogenosa contribute to the virulance of the pathogen?
A: Pseudomonas aeruginosa is a bacterium which is liable for serious infectious diseases, chronic…
Q: How can the type of pathogenic bacteria be distinguished from the * ?genus of staphylococcus إجابتك
A: Staphylococcus - It belongs to the family Micrococceae. Staphylococcus is a gram positive cocci…
Q: On blood agar whattype of hemolysis. wouldmicrococcuscoseus.have? aBor of it a
A: Micrococcus roseus shows Gamma hemolysis on bloodcagar
Q: Which bacterium does not contain deaminase enzyme O A. Proteus O B. Morganella O C. Providencia O D.…
A: Answer :: A) Proteus mirabilis a bacteria produces the enzyme urease, which converts urea into…
Q: If the bacterium in question during the perlo outbreak had beenE. coli instead of S. aureus, how…
A: The perlo outbreak was caused by Staphylococcus aureus that causes food intoxication and had led to…
Q: Gram negative diplococci inside neutrophils in an eye exudate would be indicative of ---
A: Gram-negative diplococci inside neutrophils in an eye exudate would be indicative of Gonorrhea.
Q: Why is Plasmodium species isolated usually in blood?
A: Plasmodium species are blood parasites belong to phylum protista that causes malaria. Vector for…
Q: What genus was the organism that spread through the NIH hospital in bethesda, maryland? pneumoniae…
A: Klebsiella was the genus of the organism that spread through the NIH hospital in bethesda;maryland .…
Q: Gram-negative pathogen that is unable to tolerate high salt concentration (above 9% brine):
A: # Campylobacter cannot tolerate concentrations greater than 2% NaCl # Shigella can tolerate higher…
Q: Do you think Spiroplasma produces FtsZ? What about MreB? Explain your reasoning.
A: Bacteria are single-celled prokaryotic organisms that grow in diverse environments and cannot be…
Q: Why would a psychrophile not be a human pathogen?
A: Microbes are classified according to the temperature range at which they can grow. The development…
Q: How is UV radiation a good type of control mechanism against microbial growth? Explain what happens…
A: UV-C is most commonly used to kill microbes. However UV of different wavelength can show different…
Q: catalase positive
A: Answer: Staphylococcus and Micrococcus spp. are catalase positive, whereas Streptococcus and…
Q: Describe four enzymes produced by Staphylococcus, and explain how each contributes to the…
A: Enzymes are biological catalysts that help in catalyzing or speeding up biological reactions by…
Q: Abigail did not dry the top of her agar plate and stored it top up. Now she wants to count colonies…
A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism can be harmful to…
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…
Q: Which one of the following may produce "wrinkled" colonies on medium? Select one: O A Chlamydia O B.…
A: As per our guidelines, we are supposed to answer only one question. Kindly repost other questions as…
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- Title: "Putting Koch's Postulate to Test" Choose a microbial disease and use Koch's Postulates to prove that it is caused by the implicated microorganism. Specifically, you have to provide brief narratives/pictures/proofs and sources that supports each postulate Make a 1. Page Report.Microbes and humans. 1. At what age is an individual considered to have their full complement of normal resident microbiota? 2. What is the host and their role in infection? 3. What host characteristics influence the development of infection? 4. Name several ways microbes can attach to host tissues/cells. 5. Name one antiphagocytic factor and how does it work?case analysis 45 yo male presents to ER with arm pain and rash He is a Gardener Symptoms started 2 weeks ago after landscaping Denies spider/insect bite Lesions slowly tracking up right forearm, moving up above elbow Some of the lesions are beginning to rupturePatient was diagnosed with____Infection, but ER physician also wants to cover cellulitis.He was discharged with prescription for Itraconazole and Clindamycin.10 days later……Patient returns to ER. Lesions are now “necrotic, raised, tender, ulcerated, locatedon the palmar aspect of right forearm and dorsal aspect of right forearm”. Patient is then admitted.It is discovered that patient only filled prescription for Clindamycin. He said he could not afford theItraconazole prescription.Physician collected fluid from pustules and also performed punch biopsies. ‐ Both were sent to labfor aerobic, anaerobic, fungal, and AFB cultures. ‐ CBC ‐Fungal antibodies.Laboratory results:CBC: ◦WBC 11.8 H (4.0‐10.0 K/uL) ◦RBC 5.04 (4.10‐5.80…
- Wound infections in burn victims After a horrible fire ravaged a bloc of flats, several residents were brought to the hospital for mild to severe burn treatments (see Table 1). Table 1: Patients admitted at the hospital following the fire. Name Age (years) Medical condition Sandra 63 Second-degree burns on 40% of her body Marco 19 Deep third-degree burns on 90% of his legs Alexandre 29 Deep third-degree burns on 35% of his legs Matthieu 58 Superficial burns on his arms and legs Maddie 38 Partial thickness burns on her left arm Matthieu and Maddie, who were less severely burned, were treated with various topical anesthetic ointments and antibiotics, they were released from care and made full recoveries. Severely burned Sandra, Marco, and Alexandre were all moved to an isolated section of the ICU and initially treated through intravenous (for fluid resuscitation) and intra-arterial (for invasive blood pressure monitoring) catheters.…Anthrax-laced letters were sent to the Senior Librarian recently. After the building was evacuated and all of the potentially exposed workers had received antibiotics to prevent the establishment of infection, no one was sure how to disinfect the building to make it safe for the return of workers. Your team has been hired by the Management to develop a plan to decontaminate the Building Complex after the arrival of anthrax-laced letters. The Building Complex contains thousands of valuable documents that cannot be destroyed. Workers need to be able to return to the buildings, although they do not need to return immediately. You need to guarantee the safety of workers who return. a. Can you devise an experimental setting to test the effectiveness of your strategy?b. What advice would you give to workers concerned with contaminating their family members?Your microbiome is composed of? Question options: The transient microbiota and genetic material of a person The resident microbiota and genetic material of a person The transient microbiota of a person The transient and resident microbiota of a person
- ANTIBIOTICS RESISTANCE/ SCIENCE DOCUMENTARY 2019.(YOUTUBE) How did the current state of antibiotics research make u feel? Are you confident that we can continue this way? What will happen to patients with infectious diseases in the future?Are you worried? Please make it as short as possible.You can watch the documentary to answer the questions if you want to. THANKSHelping tags: Biology, Microbiology, Food microbiology, salmonella, coliform, Escherichia coli . . . Which is better indicator for Salmonella, coliforms or E. coli? Explain/defend your answer. . . . WILL UPVOTE, just please help me answer the question. Thanks!12. Other than bacteria list the other 6 types of Microorganisms listed in your textbook.asap
- 11. Environmental factors critical for microbial growth includes all of the following EXCEPT, Group of answer choices Growth factors Osmosis and osmotic pressure Energy source ( light) pH Temperature 12. Identify a MISMATCH pair from the following, Group of answer choices whooping cough ( pertussis) :::: vector mediated transmission varicella ::: only herpes virus aerosole transmitted cockroaches :::: mechanical transmission vectors Hepatitis C :::: body fluid transmission anthrax :::: woolsorter’s disease pathogen; direct transmissionMultiple Choice. Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper. 1. Which of the following microorganism is a non-cellular organism? b. Fungi a. Virus c. Bacteria d. Algae 2. Which microbes are fungus? I. Aspergillus II. Bacteriophage IlI. Escherichia coli IV. Saccharomyces cerevisiae a. I and II b. II and II c. I and IV d. IlI andV 3. Which of the following microorganism is NOT used for fermentation? a. Aspergillus b. Bacteriophage C. Escherichia coli d. Saccharomyces cerevisiae 4. Which microorganism used for production of medicine? a. Agrobacterium tumefaciens C. Pseudomonas b. Bacillus thuringiensis d. Streptomycetes 5. A soil-bacteria that is used to clean-up oil spills on beaches. c. Pseudomonas putida d. Streptomycetes a. Agrobacterium tumefaciens b. Bacillus thuringiensis 6. All of the following microbes are used for food production, except one. Which is the exception? a. Spirogyra spp. b. Saccharomyces cerevisiae c. Lactobacillus…Instruction: Match the choices (microorganism) given with its respective discoverer. Note: If none of the discoverer/scientist of a specific microorganism is given in the table, do not include it. Scientist Microorganism Gerhard Hansen Albert Neisser Robert Koch Charles Laveran Friedrich Loeffler Choices: ANTHRAX BACILLUS BLUE-GREEN ALGAE C. diphtheriae Haemophilus influenzae HYPHAE Mycobacterium leprae Neisseria gonorrhoeae Vibrio cholerae Plasmodium falciparum