This bacterium is a Gram-negative diplococci that possesses a capsule; finding these cells in cerebrospinal fluid (CSF) is a preliminary diagnosis for the deadly disease it causes. What i bacterium? A) O Streptococcus pneumoniae B) O Neisseria meningitidis C) O Cryptosporidium parvum D) O Clostridium tetani E) O Staphylococcus aureus

Q: Create a dichotomous key Use the following bacteria and place them at the top of your key:…

A: Use the following bacteria and place them at the top of your key: Enterococcus faecalis…

Q: Why is listeriosis a serious problem even with refrigerated foods?

A: In the soil and water, Listeria monocytogenes is found. The soil or manure used as fertilizer can…

Q: Why is it incorrect to say that bacteria produce toxins to harm their host?

A: When a bacterium invades a host cell it may produce a toxin. Toxins are strong elements that are…

Q: Is Saccharomyces cerevisiae a bacteria?

A: Bacteria represent a large domain of prokaryotes. They do not have any membrane-bound nucleus and…

Q: Which of the following type of bacteria commonly causes hospital acquired infections via the fecal…

A: Hospital acquired infections are caused by few bacteria these are called as nosocomial infections…

Q: Why is an organism such as Staphylococcus adapted to growth on the human skin whereas the…

A: An organism is able to grow well in an environment which it find suitable in terms of pH and…

Q: Why is the cause of death similar in tetanus and botulism?

A: Step 1 Botulism and tetanus both are acute neurological diseases in humans as well as animals.…

Q: What is bacteremia? Is it dangerous for humans?

A: Bacterimia is a bacterial infection that spreads to the bloodstream.  It can be serious as it can…

Q: what practical importance are air-borne microorganisms to the laboratory workers?  What precautions…

A: Air is the carrier of many microbes. These microbes that are suspended in air particles are called…

Q: Why do botulism and tetanus show such opposing symptoms?

A: Botulism and tetanus are two neurological disorders in man and animals caused by the neurotoxins…

Q: What is botulism?

A: Any infectious agent or microorganism (Virus, bacterium, protozoa, ETC) that can cause disease is a…

Q: What is the difference between the use of the shape bacillus and the name Bacillus? Staphylococcus…

A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…

Q: Pseudomonas aeruginosa is a rod-shaped bacterium which causes Pner

A: Pseudomonas aeruginosa may be a common encapsulated, gram-negative, facultatively aerobic,…

Q: How can we differentiate a Bacillus cereus from B. subtilis if both are beta hemolysis?

A: Answer:  BETA HEMOLYSIS = It is the complete lysis of red blood cells in the agar, around the…

Q: In the name Mycobacterium tuberculosis, what are the genusname, specific epithet, and species name…

A: Tuberculosis is brought about by a sort of bacterium called Mycobacterium tuberculosis. It's spread…

Q: Does the causative agent of tuberculosis, Mycobacterium tuberculosis, form spores thus making it…

A: Pathogens are the microbe that causes disease.

Q: Explain how the type of hemolysis can be used to tell apart two species that would look the same…

A: Hemo means blood and Lysis means destruction so hemolysis is destruction of blood. Bacteria show…

Q: Why does the medical microbiological community propose that physicians be more cautious in their…

A: Antibiotics are the substances used by human organism that inhibit the activity of other…

Q: Two microbiologists are writing a textbook, but they cannot agree where to place the discussion of…

A: A neurotoxin isolated from the clostridium botulinum bacteria (can cause food poisoning) is Botox…

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: Provide the names of the two unknowns using the list of tests attached below .List of possible…

A: Gram stain: microscopy reveals gram positive rod shaped bacilli MSA:no growth on MSA. blood test:the…

Q: What function does the capsule have for Streptococcus mutans?

A: The capsule is the extracellular gel-like layer that surrounds the outside of cell wall of many…

Q: What shape does Vibrio cholerae have?

A: Bacteria are member of a large group of unicellular microorganisms. Bacteria have cell walls but…

Q: Name four different pathogenic groups of Escherichia coli.

A: Escherichia coli Bacteria normally leaves in the intestine of animals including Humans. Most of them…

Q: How long should you take Saccharomyces boulardii?

A: Saccharomyces boulardii is a typical type of yeast isolated from lychee and and mangosteen fruit.…

Q: Why is it difficult for the colon to reestablish a beneficial flora after several antibiotic…

A: Each person has a unique microbiota. This microbiota results from genetic inheritance and…

Q: can you draw the following on positive simple staining in 1000x objective? thank you.…

A: For the purpose of staining, dyes are selected based on their chemical properties and the specimen…

Q: Which of the following would be present in highest numbers in the indigenous microflora of the skin?…

A: Indigenous microflora Our skin contains various microorganisms such as bacteria fungi  which are not…

Q: What is Escherichia coli infection?

A: Bacteria are prokaryotic organisms that have undefined nucleus and nuclear membrane. Most of the…

Q: How long does Saccharomyces boulardii stay in system?

A: Saccharomyces boulardii is a type of yeast. Yeast is a eukaryotic unicellular organism that belongs…

Q: What was the common treatment for cholera beginning in the 1830s? Why was this not useful in large…

A: We know that, Cholera is a disease caused by the bacteria Vibrio cholerae and it occurs through…

Q: What is Escherichia coli?

A: Bacteria are microscopic, unicellular living organisms, which can be found everywhere. They can be…

Q: Using this flow chart, a species that is alpha-hemolytic and catalase-negative is…

A: In this question, we are given a dichotomous key for identification of bacteria on the basis of the…

Q: Which is the most common bacteria found in the skin flora and caused catheter-related infections? a)…

A: Bacterial diseases include any type of illness or disease caused by bacteria, a type of microbe.…

Q: Bacterial (e.g., S. pneumoniae) pneumonia is commonly manifested by a cough productive of sputum,…

A: PNEUMONIA: Pneumonia is a disease of the lungs that causes consolidation of the lung parenchyma.…

Q: Actinomyces are pleomorphic gram positive rods that are facultative anaerobes that require carbon…

A: The free-living cells that have the ability to get their food from symbiosis or photosynthesis can…

Q: How was the product of streptomycin isolated by the scientist who discovered this?

A: Streptomycin was first discovered by the American biochemists Selman Walksman,Albert Schatz and…

Q: Why wouldn’t antibiotics work as therapy for botulism?

A: Botulism is a bacterial-based disease caused by the bacterium Clostridium botulinum which is an…

Q: What are the shape, arrangement and gram staining use of the following? Staphylococcus aureus…

A: The bacterial morphology and Gram staining is very much important to study a particular type of…

Q: Identify the Gram-staining reaction of the following microbes Staphylococcus Streptococcus Bacillus…

A: Gram staining technique is useful in identifying two groups of bacteria based on the cell wall…

Q: Besides pathogens that cause typhoid fever, cholera, and dysentery, what other pathogens would be…

A: A pathogen may be referred as an infectious agent that can produce diseases. They are classified…

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: How can we experimentally prove that enterotoxin (A-B cholera toxin) is the sole cause of clinical…

A: Several microorganisms produce and secrete protein exotoxins that are either chromosomally encoded…

Q: What part of the Escherichia coli cell contains endotoxin?

A: E. coli (Escherichia coli), can be defined as the type of bacteria that resides in our intestines.…

Q: If there is a causal relationship between the presence of H. pylori and ulcers, how might you…

A: Warren and Marshall were the two pathologists, who collaborated on the study of a kind of spiral…

Q: With regard to gram-negative enterics, what do the letters O, H,and K stand for?

A: The major classes of antigens which are used in defining strains of Gram negative bacilli are 0-…

Q: What bacterial genus is commonly found in the intestines of birds and reptiles? A) Neisseria B)…

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

Q: Which of the following is true regarding pathogenic strains of Staphylococcus and Streptococcus,…

A: Staphylococcus are gram-positive cocci that grow in clumps whereas streptococci are also gram…