Q: What would happen to these pathogens if acidity (pH) increased or decreased a
A: Pathogens are the microorganisms which cause diseases in other organisms like human beings.
Q: Is the plasmodium falciparum a facultative anaerobe? If not, what would it be?
A: Plasmodium falciparum is a protozoan parasite, that is the causative agent of the most severe form…
Q: Why is excreted organic matter important to many ironoxidizers?
A: Iron oxidizers are chemotrophic bacteria that derive their energy by oxidizing dissolved ferrous…
Q: What is the pathogen that exhibits the greatest resistance to heat treatment is the bacteria ?
A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…
Q: Why is Hydrogen peroxide solution so effective against anaerobes?
A: Hydrogen peroxide is a chemical compound that is acts as mild antiseptic. It is also an endogenous…
Q: What features of urinary system help to prevent colonization by microbes?
A: The Human Body has specialized systems for performing various vital functions of the body. One of…
Q: What effect does decreasing the incubation temperature have on bacterial growth rate? Why?
A: Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary…
Q: Which disinfectant is the most effective? and why? Which disinfectant(s) is (are) bactericidal? and…
A: Disinfectant A is most effective as there is no growth of salmonella choleraesuis at dilution 1:2…
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: Define pH, acidophile, neutrophile, and alkaliphile.
A: Answer: Introduction: pH scale has impact on the presence and distribution of microbes.
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: What is microbial death? What factors affect the microbial death? What aremicrobisidal and…
A: The microbiology studies about both the diseases causing microbes and beneficiary microbes, about…
Q: Show a diagram of beta-hemolysis and alpha-hemolysis by different bacteria on blood agar and explain…
A: Hemolysis is the process by which red blood cells in the blood are broken down by chemicals or by…
Q: which one is more pathogenic? gram positive or gram negative bacteria? explain
A: Pathogens : It is the microorganism which cause damage to the host by causing diseases. Difference…
Q: Are coliform bacteria dangerous in the water?
A: Coliforms are bacteria that are always present in the digestive tracts of animals, including humans,…
Q: explain
A: The beta hemolytic bacteria are the bacterias that causes complete hemolysis of the RBC in the blood…
Q: What is a generally minimum pH for growth and toxin production by Clostridium botulinum and other…
A: Clostridium botulinum is a Gram-positive, rod-shaped, anaerobic, spore-forming, motile bacteria that…
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: For which diseases can one not rely upon chlorination of water as a method of control? Explain why…
A: Thyroid disease has been practically eliminated by using the chlorination of water. The treatment of…
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: What is aquaporins ? Why it is used ?
A: Answer- There are many intergral proteins that are embedded in the plasma membrane.
Q: What is demanufacturing, and why is it used for some types of waste?
A: Demanufacturing was suggested as a way to reduce the environmental footprint while maintaining the…
Q: What is a disease and why is it an important issue in aquaculture?
A: Introduction Aquaculture:- Aquaculture is the farming of aquatic animals or plants, including…
Q: Differentiate between psychrophile and psychrotroph.
A: Different microorganisms require an optimal range of temperature conditions to survive and thrive.…
Q: What is activated sludge?
A: Activated sludge is the method which is used to stabilise the wastewater having organic Constituents…
Q: What is a major habitat for many species of Acidobacteria?
A: Acidobacteria Acidobacteria is a species of bacteria. Members of this species vastly differ…
Q: . How could microorganisms be used to remove phosphate in wastewater?
A: Microalgae are able to convert nutrients from wasrewater into biomass and bioproducts,thus improving…
Q: Which bacterium reduces nitrates in soil to nitrogen?
A: Nitrogen is needed by the organism for producing amino acids. Atmospheric nitrogen cannot be used as…
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: What are the applications for Boiling, Filtration, Dessication, and Incineration?
A: It is required to describe the applications of boiling, Filtration, Dessication and Incineration.
Q: Which of the letter labeled microbes is exhibiting alpha-hemolysis?
A: The lysis or breakdown of red blood cells is called hemolysis. There are three types of hemolysis…
Q: Which type of food had the lowest bacterial count? Explain.
A: Introduction: Bacterial count is an important factor to assess in the prepared food. It gives an…
Q: Given what is known about humans, why is it unlikely that a thermophile or a psychrophile would be a…
A: .m Humans are warm-blooded. Their body temperatures do not change when the temperature outside…
Q: What kind of osmotic environment does syrup have?
A: Hypotonic substance contains lot of water in it. Hypertonic substance will contain lot of sugar or…
Q: How is water decontaminated and made safe to drink?
A: Water is very important for our survival it is required in almost all the processes which we do in…
Q: What is a suspension of killed pathogenic bacteria known as?
A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…
Q: Why is yield a good indicator of coagulation?
A: Coagulation of milk results in the formation of cheese by separating the milk gel into solid curds…
Q: Identify the principles of the lyophilization process and list down the precautions and limitations…
A: Lyophilization is the process of freeze-drying also called cryodesiccation. It involves…
Q: All of the following microorganisms contains the enzyme catalase except?
A: Answer - Option D - Obligate anaerobes
Q: Which of the tubes (containing thigylcolate broth) best illustrates the growth of facultative…
A: Growing bacteria in thioglycolate tube cultures allows us to easily observe different molecular…
Q: What conditions need to change in order to allow for thermophilic spores to grow instead of…
A: Spores are a dormant form of bacteria. They are tough and highly resistant to unfavorable conditions…
Q: Of what benefit is the organism Oxalobacter to human health?
A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…
Q: In which growth phase are microorganisms most sensitive to antimicrobial agents? Why?
A: Bacterial growth means that bacteria divides and result in the formation of daughter cells. There…
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: What specific purposes do sedimentation, coagulation,filtration, and disinfection accomplish in the…
A: Earth is so far the only planet that has the capability to sustain life on it. There are many…
Q: What do Gram positive bacteria generally possess and how will these help them in their virulence?
A: The Factors that are produced by a microorganism and evoke disease are called virulence factors.…
Q: What are HFR bacteria?
A: Conjugation process refers to the horizontal transfer of genetic material of bacteria through direct…
Why are most pathogens mesophilic?
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- What is demanufacturing, and why is it used for some types of waste?explain why usually organisms with beta hemolysis are pathogenic ( relate to the function of beta hemolysis on disease production)Given what is known about humans, why is it unlikely that a thermophile or a psychrophile would be a human pathogen?