What are high level disinfectants? What is an example of one? What is the method of action and the advantages/disadvantages?

Q: What is the difference between a mixed culture and a contaminated culture if they both contain more…

A: In microbiology , a bacterial culture is a growth of microorganisms which have been grown in a…

Q: What types of samples can be measured with Circular Dichroism? Can information be extracted?

A: Circulate dichroism is the difference in the absorption of left handed circularly polarised…

Q: What advantages do solid media offer for the isolation ofmicroorganisms?

A: Micro-organism are those that cannot be seen by the naked eye, but are visible under microscopes.…

Q: Agar is a solidifying agent used in media preparation. What makes it ideal for cultivation of…

A: Agar is a natural polysaccharide. It is mostly used in the lab and acts as a solidified agent. It…

Q: In sterilization, which among the supplies, instruments, glassware, etc. under the list of materials…

A: Hot air oven= powder, oil, liquid paraffin, glass wares, metal sharps  Autoclave= media, reagents,…

Q: How to prepare tryptone agar, tryptone broth and tryptone soft agar from other chemical contents and…

A: Tryptone is formed by the enzymatic digestion of casein by the trypsin enzyme. Tryptone is used as a…

Q: What is sterilization? Give specific examples of media which are sterilized by the following…

A: All microbes, such as bacteria, virus, and fungi, requires some essential nutrients for growth. The…

Q: In the preparation of a bacterial smear, why is there a need to fix the bacteria to the slide? Aside…

A: Several laboratory techniques necessitate smear preparation. A smear can be made using either broth…

Q: If the pH indicator were left out of MacConkey agar, the medium would bea) complex.b)…

A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…

Q: Can culture media be sterilized in the hot air sterilizer? Why or why not?

A: Hot air sterilization is a procedure in which the sterilization of the objects are done using hot…

Q: What are the physical methods of microbial control

A: Control of microorganisms is fundamental to forestall the transmission of illnesses and disease,…

Q: Agar is a solidifying agent used in media preparation. What is its origin?

A: Agar gel is a polysaccharide which can become liquefied at temperatures ranges from 85°C to 90°C and…

Q: Explain the difference between sterilization, disinfection, antisepsis, pasteurization? Give…

A: Microorganisms are present everywhere. They are not visible with naked eyes but are present at…

Q: In the laboratory, autoclaving is required to prepare media for the growth of What type of method of…

A: The most effective method by which we sterilize the laboratory instruments is known as autoclaving.

Q: What is the difference between defined media and complex media?

A: media is a solution in which is rich in nutrients.  it is very suitable for the growth of microbes…

Q: What is the purpose of degerming? Does it completely eliminate microbes? What are some factors that…

A: 1.Degerming is the process used to reduce mircrobial numbers by gently scrubbing tissue with a mild…

Q: Design an experiment to determine whether an antimicrobial agent is acting as a cidal or static…

A: A cidal agent means that it causes death of an organism. A static agent does not directly kill the…

Q: Can you give me an example of a specific medium in culture media and fill the information below.…

A: Selective media are those that prevent the growth of undesirable microorganisms while promoting the…

Q: What is differential medium and differential media? Explain the difference ?

A: Difference between differential medumium -   .- A differential medium support the expansion of any…

Q: why do microorganisms differ in their response to disinfectants

A: Microorganisms are the minute microscopic organism that is generally invisible to the human eye.…

Q: During the preparation of the capsule stain, the slide used to spread the India ink/bacteria mixture…

A: Capsule stain is a type of differential stain which uses acidic and basic dyes to stain the…

Q: What is the principle behind sterilizing media before use and before disposal

A: Microorganisms may be beneficial or harmful. The harmful microorganism causes many infections which…

Q: suffering severely due to alkaloid production and accumulation in the medium the

A: Plants have an important source of life-saving medications where it is used in two ways such as…

Q: What is one advantage of a pour plate over a streak plate?

A: The pour plate method is a technique used to count the number of colony-forming bacteria found in a…

Q: Which physical or chemical agent would be the best choice for sterilizing the following items: glass…

A: Sterilization is a process used in a laboratory setting to remove, kill, or deactivates all forms of…

Q: Why should caps of glassware be loosened first before sterilization? [Answer in not more than 2…

A: Sterilization is defined as the process which removes , kills or deactivates all forms of life (in…

Q: What is the purpose of adding sodium bicarbonate to a culture medium?

A: >> The purpose of adding sodium bicarbonate to animal culture medium is that it acts as a…

Q: Are TSA, MRS and MOX differential media? Why or why not?

A: In microbial biology, differential media refers to any growth media that comprises of certain…

Q: If a component is heat sensitive, how might you conveniently achieve sterility of that medium? a.…

A: Option A i.e. filtration

Q: what is sterilization or define sterilization?

A: Sterilization is defined as the process where all the living microorganisms, including bacterial…

Q: Why must you first clean debris from items before beginning disinfection or sterilization? (

A: Until the discovery of the microbes by the famous scientist Louis Pasteur, one of the signs of the…

Q: Of what practical importance are air borne microorganisms to the laboratory workers?  What…

A:

Q: Which of the following control agents help to be used to achieve sterility? - Virucide - Sporocide…

A: Sterilization can be achieved through various means, including heat, chemicals, irradiation, high…

Q: What products are sterilized using high energy ionizing radiation?

A: Sterilization is the process of killing microorganisms.

Q: What is the purpose of the different types of media (solid, semi-solid, broth)?

A: Culture medium is the medium consist of  mixture of nutrients and substances which are required for…

Q: What type of media components cannot be sterilized in an autoclave?

A: Sterilization refers to the complete destruction or elimination of all viable organisms. The process…

Q: Neutralization of residual disinfectant could be made by:  a. Dilution if the concentration…

A: Disinfectants are chemical compounds that are used to destroy harmful microorganisms on non-living…

Q: which of the following is not a chemical method of microbial control

A: Answer is option c - Filteration Filteration is not a chemical method of Microbial control.

Q: What are the different types of Pasteurization?

A: Pasteurization is the process of heat processing the liquid (mainly milk) or food so that the…

Q: Suppose you have an initial chlorine concentration of 5%. Then out of that, you are told to prepare…

A: The concentration of a solution: The concentration of a solution is defined as the amount of the…

Q: what practical importance are air borne microorganisms to the laboratory workers?  What precautions…

A: Laboratories are the areas where lot of experiments and research is performed. It deals with lot of…

Microbial Growth

The development of microbial growth is influenced by various natural conditions (both physical and synthetic) like pH, temperature, saltiness, gas focus (O2, CO2, and H2), nutrients, water action, and assimilation. Knowing the distinctive physical and chemical factors that influence the development and endurance of microbial growth in the climate will assist with reinforcing endeavors outfitted towards their control. These lines lessen or diminish their harmful impacts on humankind, creatures, and the climate.