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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- Why mightproteorhodopsin make a bacterium such as Pelagibacter morecompetitive in its habitat?In the exponential phase of microbial growth, Log cell numbers Time O a) net cell growth is equal to net cell death. Ob) net cell growth is greater than net cell death. c) waste accumulates, cell death is greater than cell growth. d) the cells stop growing.Why are bacteria referred to as pathogens?
- Why is Hydrogen peroxide solution so effective against anaerobes?Why do microorganisms differ in their pH requirements for growth?hypoxia can a) mediate the transfer of electrons through the electron transport chain b) mediate the active transfer of protons through the ATP synthase c) be a mediator to the development of acidosis in your patient d) increase the production of ATP in your patient e) be a catalyst for phagocytosis in your patient
- What is the Microorganism involved in the spoilage of canned curdled evaporated milk and Glutinous rice cake with sticky substance at the center??Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilms can be more pathogenic.What medical challenges do biofilms present?