Bacteroides is the predominant genus of bacteria found in the human gut microbiota. As anaerobic bacteria, Bacteroides undergo fermentation in the gut, converting otherwise nondigestible carbohydrates into fermentation products that are used by the host for energy. Which of the following toxins would be most likely to disrupt carbohvdrate metabolism in Bacteroides

Q: All Enterobacteriaceae ferment glucose. Explain, then, how glucose fermentation can be used to…

A: Enterobacteriaceae is a large group of bacterias which are stained Gram negative after Zn Staining.…

Q: explain how e coli causes pyogenic liver abcess.  give details and mechanism

A: Liver abscess is the fluid filled mass in the liver that can develop due to injury to the liver or…

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: Which of the following meets the criteria for being an honest signal? The brightly colored wings of…

A: Introduction  A signal refers to any form of communication or information exchange between…

Q: 38. Evisceration is: Excision of the entire eyeball. Excision of all the inner contents of the…

A: The eye is the central organ for vision. It is made up of 3 layers- choroid, sclera and retina. The…

Q: Many organisms in the Enterobacteriaceae family are part of the human gut flora. How does gut flora…

A: Human gut flora: [Entry]          In humans, a gut flora mere to an adult's is formed within one to…

Q: The enzyme chymosin secreted in calf stomachs has traditionally been used to coagulate milk to make…

A: Title: Sustainable Cheese Production: Bioreactor-Based Chymosin Production as an Ethical…

Q: What metabolic characteristics are shared by mostSynergistetes, Fusobacteria, and Fibrobacteres, and…

A: The ATP (adenosine triphosphate) production is vital for the functioning of the various systems and…

Q: What virulence factors of each species of Enterobacteriaceae?

A: Enterobacteriaceae is a family of Gram-negative, facultatively anaerobic, non-spore-forming rods.

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: 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: Of, Corynebacterium xerosis and Corynebacterium kutsceri, which are positive for lipase production?

A: Corynebacterium xerosis is a Gram-positive bacillus that is found in natural skin flora. It is…

Q: What are the Carbapenem-Resistant Enterobacterales? Give examples of bacteria that are…

A: Enterobacterales Large order comprising of different types of bacteria that are the cause of…

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: 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: Antacids are sometimes taken to treat ulcers. Given what you've learned about the pH environment…

A: Ulcers refer to the damage caused by infection of bacteria, specifically Helicobacter pylori in…

Q: List and describe at least three medically important members of family Enterobacteriaceae. What…

A: Bacteria are microscopic single-celled organisms that thrive in diverse environmental conditions.…

Q: Neither nor is able to ferment mannitol. Enterococcus faecalis ... Escherichia coli Escherichia coli…

A: Mannitol is a sugar alcohol which can be fermented by some microbes. It is the basis of…

Q: Describe the growth of Staphylococcus aureus and Saccharomyces cerevisiae at high pH (7-7.5

A: pH (potential of hydrogen) reflects the hydrogen ion concentration of a solution. It affects the…

Q: Cytochrome P450s are located in: 1) bile duct 2) kidney nephrons 3) liver

A: Introduction :- Heme is a cofactor in the superfamily of enzymes known as cytochromes P450, which…

Q: What Enterobacteriaceae are of medical significance?List and describe the infections caused by these…

A: Bacteria, Virus, Fungus, and Parasites are the four agents that infect human body. Even though most…

Q: Of, Bacillus megaterium, Bacillus sphaericus, and Bacillus subtilis, which are positive for lipase…

A: Bacillus megaterium - rod-like, Gram-positive, mainly aerobic spore-forming bacterium Bacillus…

Q: How would the following plants defend themselves from being eaten? Identify the secondary metabolite…

A: Secondary metabolites are the compounds produced by organisms that are not used by them for primary…

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: How can we prove the pathologic or clinical effects of V. cholerae are due only to the production of…

A:

Q: EPKP O111: K58 is isolated from the feces of a sick child under 3 months of age with certain…

A: Gram-negative bacterium Escherichia coli (E. coli) is recognized to be a component of healthy…

Q: Define the term pyogenic, what is this term referring to?

A: Pyogenic are those bacteria which leads to Infections in which pus is produced. Pus is white-yellow,…

Q: Why is it important to seek early treatment for Lymedisease?

A: We have to explain why it is essential that Lyme disease is diagnosed earlier.

Q: How could an infection with H. pylori be diagnosed given the knowledge that the urease enzyme it…

A: An infection with H. pylori can be diagnosed using the urea breath test which is based on the…

Q: Match the following characteristics to either (a) autotrophsor (b) chemoheterotrophs:Many…

A: Microorganisms are ubiquitous, and they are abundant in nature. They are involved in maintaining the…

Q: Identify the type of structural conformation found within the botulinum toxin molecule.

A: Clostridium botulinum produces the botulinum neurotoxin.

Q: Question 20 Which of these statements describes the activity of fast, fatigable (FF) motor units? FF…

A: The correct answer is: FF motor units generate a smaller maximum force than fast, fatigue-resistant…

Q: The major pathway of ammonium assimilation combines two reactions in organisms with rich nitrogen…

A: Introduction: Nitrogen is cycled between organisms and inanimate environments. The principal…

Q: It is mentioned that a high-sucrose diet can cause non-alcoholic FLD. Explain

A: In people who drink little or non-drinkers, non-alcoholic fatty liver disease is the deposition of…

Q: Discuss the virulence of bacterial pathogens on the basis of proteinase activity.

A: Bacterial proteinases are enzymes that break down proteins and are produced by various bacterial…

Q: Please explain what is going on in the image below

A: CATABOLISM OF HEME The process given on the flowchart is catabolism of heme, that is the breakdown…

Q: E.coli is part of the normal microbiota of the intestines and can cause gastroenteritis. Explain why…

A: E.coli is a bacteria naturally present in human gut in lower segment of large intestine. E.coli can…

Q: Which fermentation pathway does Enterobacter aerogenes use to ferment glucose?

A: Enterobacter aerogenes are small ,rod shaped cells which are motile and encapsulated .It is a gram…