Compare and contrast chlorine, combined chlorine and UV light as disinfectants using a graphic organizer or Venn diagram.

Q: A microscope that has a total magnification of 1,500× when using the oil immersion objective has an…

A: The microscope is the major tool in the identification of a microorganism after its isolation. The…

Q: how foods are lyophilized and compare the advantages and disadvantages

A: Freeze drying also known as lyophilization is a method by which water is removed from frozen…

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: Give two reasons for the differential staining between gram + and gram - organisms

A: Differential Staining is all those staining methods that employ more than one stain to distinguish…

Q: A colleague performs a smear prep from a colony on an agar plate. Without staining it, he looks at…

A: Answer : the error in his logic is that he didn't stained the bacteria with the gram stain.  He…

Q: Drugs are extracted from body fluids and tissues bycarefully controlling the ___________ of the…

A: Extraction of drugs from body fluids and tissues plays a major role in criminalistics.

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: The microscope images show two different sludges. Which sludge is preferable in a biological…

A: Bacteria, archaea species, fungi, and certain protists are among the aerobic and anaerobic microbial…

Q: Differentiate moist heat from dry sterilizing heat.

A: Dry heat sterilization:-one of the oldest techniques of sterilisation is dry heat sterilisation of…

Q: Describe why Gram negative bacteria stain pink.

A: Gram staining is the differential staining technique performed to differentiate the bacterial…

Q: Put the numbers in the space provided to indicate the order of Capsule Staining. If the statement is…

A: The primary function of capsule staining is to differentiate capsular material from bacterial cells.…

Q: Give the importance of using cedar wood oil with the oil immersion objective

A: Light microscope is used to magnify biological specimen and it use two types of lenses that are…

Q: Describe how to measure the effectiveness of a chemical disinfectant.

A: A chemical liquid or a substance that is used to kill microbes is referred to as a disinfectant.…

Q: If you have a substance that you wish to sterilize (without destroying), and that substance is…

A: Introduction Any procedure that eliminates, eradicates, or renders inactive all life…

Q: Explain the importance of using a control tube with only broth when measuring turbidity in a…

A: A spectrophotometer is used to measure the turbidity of a microbial culture sample. It is also used…

Q: The use of sodium chlorite to inhibit the growth of Shigella in drinking water refers to ? O A.…

A: The use of sodium chlorite to inhibit the growth of Shigella in drinking water refers to…

Q: Why is mordant necessary for the staining of bacterial flagella? Answer in not more than 3…

A: In contrary to negative staining, which leaves the bacteria unstained against a dark backdrop,…

Q: Produce vinegar using rice

A: Vinegar is an aqueous solution of acetic acid and trace chemicals  including flavorings. Vinegar…

Q: List the Comparison of Positive and Negative Stains.

A: A light microscope is the most commonly used microscope for viewing specimens. The specimens that…

Q: Define disinfection. Compare/contrast it with sterilization, antisepsis and bacteriostasis.

A: Sterilization, disinfectant, antisepsis and bacteriostatic all terms are related to halt the growth…

Q: Explain how a recrystalization will purify a solid. You MUST use relevant drawings in your answer.

A: Recrystallization: It is a technique performed in the laboratory to purify solids based on their…

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: Explain the different results in the Gram stain are due to differences in the structure of the cell…

A: There are many types of bacteria and bacterial species. They are prokaryotic cell which has a cell…

Q: Using the acid-fast stain's name as a guide, what would be a logical alternative name for the Gram-…

A: Gram staining is a common technique used to differentiate two large groups of bacteria based on…

Q: Explain the relationship between bacterial cell wall with gram-positive and gram-negative in the…

A: Gram staining is the standard laboratory practice for distinguishing between two broad species of…

Q: Please label the figure to demonstrate your understanding of selective and differential media.…

A: A culture media or growth media is a liquid, gel or solid designed that support the growth of…

Q: Compare and contrast the action of alcohols, halogens, and ­oxidizing agents in controlling…

A: Alcohol is used as disinfectant for centuries.Alcohol is extremely effective in fight against single…

Q: Complete the picture of the thylakoids membrane in the beaker with solution at PH 8

A: The thylakoid membranes of a chloroplast is an internal system of interconnected membranes, that…

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: Explain how you would troubleshoot a Gram stain of a known G(-) organism that stained purple.

A: Gram staining is used to differentiate bacteria based on their cell wall constituents. Gram-positive…

Q: Agar is added to media.

A: Agar is obtained from algae. It is composed of agarose (polysaccharide) and agaropectin. It is a…

Q: Construct a work plan for the identification of a specific microorganism from a clinical specimen

A: According to their basic morphologies, bacteria are divided into five types. Single cells, pairs,…

Q: Explain the rational of using saponification-solvent extraction to extract pyrene from milk

A: Asked : Rational of using saponification-solvent extraction to extract pyrene from milk

Q: In a tabulated form, differentiate the physical and chemical methods of sterilization.

A: The microbiological technique that is performed for the removal, killing, or deactivation of…

Q: Describe the cells seen in this methylene blue stain with what you know about bacterial cells. Make…

A: Gram staining was first devised by a Danish bacteriologist, Hans Christian Joachim Gram in 1884. It…

Q: Explain how microbial agents A through D in the following diagram compare in effectiveness against…

A: It is used to determine the susceptibility of a given test organism (clinical) against a range of…

Q: Explain how bacterial cells would look in the gram staining procedure if the following mistakes were…

A: Microorganisms are those small organisms that are invisible to the naked eye and can be seen only…

Q: explain methods for cleaning beans using flat bed screen and drum spray cleaner

A: Much of the mechanical cleaning procedures must be performed in the field for proper storage of the…

Q: Write a note on the measurement of growth of microorganisms, factors influence microbial growth and…

A: Microbial growth can be defined as the growth of a population or an increase in the number of cells,…

Q: Need answer of this question Identify the principles and procedures related to disinfection and

A: As we know Sterilization is the process of killing microorganisms along with their spores. It is the…

Q: Gram-staining

A: Reagents using in Gram-staining are  : Crystal violet Iodine Alcohol/Acetone Safranin

Q: Illustrate the different solid tubed media formed  1. Deep/Butt solid tubed media 2. Slant solid…

A: The selection of media is a crucial point in determining the generation of contamination-free…

Q: The gram stain is a ______________ stain in which a decolorization step occurs between the…

A: Gram stain is a popular microbiological staining technique for identifying and characterising…

Q: etermine the reason as to why using sanitizer are considered to be the more effective than hand…

A: A group of behaviours known as "hygiene" aim to keep things clean and avoid illness. By keeping the…

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.