How could an infection with H. pylori be diagnosed given the knowledge that the urease enzyme it produces in the stomach converts urea into ammonia and ultimately into carbon dioxide?

Q: List the most clinically significant pathogens in the genus Staphylococcus,and identify the species…

A: Staphylococci are Gram-positive cocci ranging with a diameter between 0.5 – 1.0 μm and tend to grow…

Q: How do the methyl-red and Voges-Proskauer tests differentiate between certain members of the…

A: Methyl-red and Voges-Proskauer tests are used to differentiate  between certain members of the…

Q: Give the common names of the following: Entamoeba histolytica Trichomonas vaginalis Balantidiun…

A: Protozoa are unicellular eukaryotic microorganisms that are either free-living or parasitic in…

Q: Why does C. diphtheriae have such a high requirement for iron as the  organism is aerobic?

A: The Diptheria toxin contains large amounts of amino nitrogen and catalyzes a chemical reaction in…

Q: How does Helicobacter pylori cause stomach ulcers?

A: Helicobacter pylori(H. pylori can be defined as a type of bacteria. These germs have the tendency to…

Q: 1.) what is gram reaction of Schistosoma mansoni? 2.) what is the oxygen requirement for…

A: Schistosoma mansoni is a waterborne parasite of human causing intestinal Schistosomiasis. During the…

Q: holsappleeus scarius is a normal flora of the human intestenal tract. its facultative anaerobe…

A: Gut microbial flora is found in three primary regions. They are the stomach, colon, and small…

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: mycobacterium tuberculosis Can it form endospores? If yes, explain when they form endospores

A: Endospore It refers to the dormant, tough and the non-reproductive structure created by some…

Q: What is Enterobacter aerogenes? What did Enterobacter aerogenes cause? How do you know that organism…

A: There are wide diversity of microbes present in our surrounding;like virus; bacteria;fungi etc which…

Q: What are the substrates for the Clostridium kluyverifermentation? In nature, where do these come…

A: A biochemical reaction converts reactants into products. Fermentation is a metabolic process. It…

Q: Explain how Vibrio cholerae causes cholera.

A: Vibrio cholerae is a species of flagellated bacteria that causes the disease cholera. Cholera is…

Q: The reason why it is critical to cease Tempeh fermentation prior to the sporulation of molds is…

A: A fermented soy food known as Tempeh is made from soy beans that have been fermented. It is a…

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: Why might members of Campylobacter not be isolated from a stoolspecimen in a diagnostic laboratory?

A: Efficient Detection of pathogenic organisms ensures the success of laboratory techniques. It is…

Q: In what ways is the organism Streptococcus pyogenes different from Staphylococcus aureus?

A: Streptococcus is a gram positive coccus . They are spherical in shape.

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: In patient with Maple Syrup Urine Disease, what specific amino acids should be not used in order to…

A: Maple syrup urine disease is an autosomal recessive metabolic disorder affecting branched-chain…

Q: Briefly explain how urease helps Helicobacter pylori to evade the protective nature of the body.

A: Helicobacter pylori; is a bacterium which is responsible for many diseases and health in human…

Q: Describe the major features of how cholera toxin damages intestinal cells.

A: Cholera is an infection of the small intestine due to bacterium vibrio cholera. It causes large…

Q: How the presence of Pseudomonas aeruginosa in lungs aggravate the condition of patient having Cystic…

A: The airways of sufferers of cystic fibrosis (CF) are exceptionally complicated, involved with…

Q: What are the causative agent mode of transmission and clinical symptoms of enteroaggregative E.coli…

A: Enteroaggregative E.coli -  Causative agent - Escherichia coli EAEC is a pathotype of E. coli.

Q: Determine the type of motility of the following bacteria: Chlamydia trachomatis.

A: Introduction Motility is the ability of an organism or cell to move from one location to another…

Q: Why do healthy adults usually not contract Clostridium difficileinfections?

A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism such as bacteria…

Q: What shape does Vibrio cholerae have?

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

Q: What is the normal habitat of enterococcus faecium? Provide an explanation for its recovery from…

A: Bacteria are prokaryotes with chromosomes consisting of a single closed DNA circle and no…

Q: What is the mechanism by which enterococci are able to grow in high salt conditions?

A: The Enterococci are facultative anaerobes, gram-positive coccus that appears to be in short chains…

Q: other than contributing to the virulence of the organism, what other functions do capsule have?

A: The capsule has a primary function which is contributing to that of virulence factor by its anti…

Q: Explain Clostridium botulinum

A: Bacteria are single-celled microorganisms that lack a nucleus and other membrane-bound organelles.…

Q: Where did the name granulomatous amoebic encephalitis originate from

A: The name granulomatous amoebic encephalitis originate from- a disease of Central nervous system…

Q: What is dental plaque? What is the role of bacteria in the production of dental caries?

A: A tooth is a hard structure composed mainly of inorganic minerals, such as calcium and phosphate.…

Q: what is the host response to the infection of clostridium tetani and what is the pathogenesis of…

A: Clostridium tetani is the causative agent of the disease called tetanus. This is a bacillus…

Q: Why does transmission of cholera usually require a largeinoculum?

A: Diarrhoeal diseases which include cholera, are the important cause of morbidity and the second most…

Q: what is the mode of respiration in listeria monocytogenes?

A: Listeria monocytogenes is gram positive, rod shaped, motile, non spore forming  and facultative…

Q: What species of Pseudomonas is a common cause of lunginfection in cystic fibrosis patients?

A: Cystic fibrosis (CF) is a hereditary disease that affects the lungs and digestive system. The body…

Q: Why is the metabolism of Streptococcus bovis of specialconcern for ruminant nutrition?

A: Streptococcus bovis (S. bovis) is a gram-positive bacteria.

Q: Name the enzymes and toxins found in S. aureus, and explain theirrole in increasing the virulence of…

A: Staphylococcus aureus produces a number of biochemical that increase its ability to infect and cause…

Q: What was the miasmic mode of transmission of cholera? What evidence did John Snow accumulate that…

A: Cholera was a deadly disease transmitted through bacteria. Chlorella is caused by vibrio cholera.…

Respiratory Infections

Respiratory infections are infectious diseases of the respiratory tract that are mostly caused by bacteria and viruses. They cause infections of the throat, sinuses, airway path, and lungs. Respiratory infections are typically divided into two types: upper tract respiratory infection and lower tract respiratory infection.