How to test the effect of temperature and PH  on S. thermophiles growth ?

Q: What are the materials used to grow microorganism like Spirulina?

A: Introduction In this question we will discuss about the materials used to grow microorganisms like…

Q: What is the effect of light on microbial growth?

A: Introduction:- The quantity of bacteria in a population, rather than the size of individual cells,…

Q: Which characteristic of the species used determines whether sterility was achieved when autoclaved?

A: Microorganism: These are too small organism which is impossible to see by naked eyes. They exist in…

Q: What is the best growth medium that contains glucose that can be used to acclimatize bacteria? and…

A: A growth medium is a liquid, solid, or semi-solid preparation that supports the growth of a…

Q: what is growth rate? What is growth yield? How to control these two parameters in a chemostat?

A: Answer: Introduction: The yield (X) of a culture means the change amongst the primary biomass (X0)…

Q: What role do exoenzymes play in nutrition of microorganisims?

A: An enzyme that is secreted by a cell and functions outside that cell is known as exoenzyme.…

Q: How do chemoheterotrophs obtain energy?

A: Chemoheterotrophs are the organisms which are unable to synthesize their own organic molecules. They…

Q: What is the purpose of the crystal violet, bile salts, and neural red in MacConkey Agar media?

A: MacConkey Agar or MAC is a culture medium. It is a selective and differential medium designed for…

Q: why is it that psychrotrophs placed in TSA medium are incubated at 7oC?

A: Psychrophiles are organisms that can survive and reproduce in low temperatures as low as -20 degrees…

Q: What growth factor is often supplied for cultivation of fastidious bacterial pathogens?

A: A fastidious organism requires specific nutrients for growth. In microbiology, the culture medium…

Q: How do bacteria differ in terms of optimal temperature for growth?

A: The optimum temperature of the bacteria is defined as the suitable temperature where the maximum…

Q: Describe fully how to culture the media of L. bulgaricus and S. thermophiles properly by using…

A: The thermophilic lactic acid bacteria (LAB) Lactobacillus bulgaricus and Streptococcus thermophilus…

Q: You inoculated two tubes of liquid cuture media with 100 bacterial cells and incubated one tube at…

A: "Microbiology" is the study of microorganisms and associated topics. Microbiology has gone a long…

Q: How does an aerotolerant anaerobe differ from a microaerophile?

A: Microorganisms are classified into different types based on the requirement of oxygen and are…

Q: Why is it important to determine the number of mesophilic spores in a food ingredient?

A: Sometimes  spore forming mesophilic bacteria found in food ingradient, mainly in dairy product. It…

Q: The term psychrophile? a. refers to an organism that has an optimum growth within the range of -5…

A: Bacteria  A unicellular prokaryotic microorganisms not visible to the naked eyes.

Q: How do psychrotolerant organisms differ from psychrophilicorganisms?

A: Psychrotolerant and pychrophilic organisms are majorly Archaea and bacteria and only few eukaryotes…

Q: How is the presence or absence of viable endospores related to sterility?

A: Endospore is a resistant asexual spore that develops inside the bacteria under the extreme…

Q: why macconkey agar and mannitol salt are regard as salective and deffrental medium?

A: A culture medium is just water and nutrients that support microbic growth. Primary culture media for…

Q: How alcohol is effective at contolling microbial growth?

A: Sterilization: Sterilization includes the complete wipeout of all microscopic life on a surface.…

Q: How would the pH of the culture medium be influenced by sugar fermentation? By urea hydrolysis?

A: Microorganisms grow well at their optimal pH. The concentration of hydrogen ion affects the growth…

Q: what is the cause of different species of psychrotrophic bacteria growing in the CTSA medium at 7…

A: They can grow at extreme low temperatures and lead to spoilage of food by modifying the compounds…

Q: give one reason why is it necessary to keep stirring the agar medium mixture in a beaker when…

A: Agar is a heteropolysaccharide, which is composed of different carbohydrate units. Agar is obtained…

Q: The most probably number (MPN) method for measuring Nitrifiers in soil Microbiology ?

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: How does the extremely high resistance of bacterial endospores influence sterilization practices,…

A: Endospore refers to a nonreproductive, dormant composition generated by some kind of bacteria. It…

Q: What are some advantages and disadvantages of using ionizing radiation to sterilize food?

A: Sterilization involves physical methods for removing or controlling the microbes. The physical…

Q: How is the CTSA (coconut water tryptic soy agar) growth medium designed to meet the nutritional need…

A: Many different kinds of media are formulated in the microbiology lab to support the growth of a wide…

Q: What is the difference between a fume hood and a biological safety cabinet (BSC)? Support your…

A: HEPA filters or High-efficiency particulate absorbing filters are used for filtering the air and to…

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 is the independent variable? What is the dependent variable? Suggest a control for this…

A: Generally, lactic acid bacteria (LAB) are the ones you should be looking at for milk-based…

Q: In what ways is Chloracidobacterium thermophilumsimilar to green sulfur bacteria, and in what ways…

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

Q: Description of how you have modified pour plate and streak culture method to see the effect of…

A: In microbiology lab, for the preparation of pure culture of a particular microorganism different…

Q: What is the effect of pH on microbe's growth? Define halophiles, osmotolerant and barophiles.

A: Microbes are tiny living things that are viewed surrounding us and are as too little to be seen by…

Q: What is the point of the pressure in the autoclave sterilization?

A: Autoclaves are the devices which are like pressure cookers and  used in laboratories that provide a…

Q: Discuss how can some anaerobes be maintained in pure cultures?

A: Introduction :- A pure (or axenic) culture is a population of cells or multicellular creatures that…

Q: How is household antibacterial soap like a weapon against pathogenic bacteria?

A: Antibacterial soaps are those that contains certain chemicals that inhibit the growth of pathogens .

Q: What type of agar is MacConkey agar?

A: MacConkey agar or MAC which is also described as a bacterial culture medium was named after the…

Q: What is the proper term for an organism whose optimum growth range is between 20 and 50C but can…

A: The temperature range in which the microbe grows corresponds to the temperature at which its enzymes…

Q: What chemical ingredients make MSA differential? How (in your own words) do those chemical…

A: Introduction  A liquid medium known as enrichment media contains specific selective agents,…

Q: Which of P. aeruginosa or B. subtilis do you think will be able to survive boiling for the longest…

A: Spore is the outside coat of bacteria which can protect the bacteria in unfevourable conditions like…

Q: How is the medium (Mitis Salvarius agar) selective?

A: Mitis Salviarius agar is used to differentiate among species of Streptococcus and the very close…

Q: What is the morphology and optimum growing conditions of Thermophilic Molds?

A: These are multicellular filamentous fungi.They have thallus which lack true root ,leaves and stem.…

Q: How do the processes of nitrification and denitrification differ?

A: Both denitritification and nitrification are important processes for nitrogen balance in ecosystem…

Q: What is a starter culture and what is its purpose? What are the characteristics of a good starter…

A: STARTER CULTURE:- Starter culture are those microorganisms that are used in the production of…

Q: Are you able to identify the lag, log, stationary and death phase in using this growth curve? Are…

A: The growth curve of bacterial cells can be divided into four distinct phases known as lag, log (or…

Q: How do hyperthermophiles keep proteins and DNA from beingdestroyed by high heat?

A: A hyperthermophiles are groups of organisms that can survive without trouble in extremely hot…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.