Q: what might be the consequences of storaging coconut water at room temperature after collection and…
A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…
Q: Why do you have to boil the agar solution before dispensing it into tubes?
A: Agar is the medium which can used to grow the micro organisms in petri plates. The selected…
Q: why are gram-negative bacteria unevenly distributed on a slide?
A: why are gram-negative bacteria unevenly distributed on a slide?. Introduction: Bacteria that do…
Q: What is the correct shape of the unknown bacterium growing on your MacConkey agar?
A: Macconkey Agar This agar includes bile salts, which are found in the gut. Bile salts help in…
Q: Why are the streak plates for microorganisms in coconut water incubated at 7°C?
A: The benefits of streaking for isolation is to produce isolated colonies of an organism on an agar…
Q: When we grow bacteria on TSA plates for 5 days, we see mostly vegetative cells. Why?
A: TSA is a nutrient media used for culturing bacteria. The media provides the amino acids and other…
Q: Why are bacterial cells generally stained for microscopic viewing?
A: Staining bacterial cells prior to microscopic viewing is a routine process in most of microbiology…
Q: What is the correct arrangement of the unknown bacterium growing on your MacConkey agar?
A: MacConkey agar (MAC) was the first solid differential media to be designed by Alfred Theodore…
Q: How are cells formed in de novo from aboitic materials?
A: A cell is a structural and functional unit of life. The structure and function of a cell have been…
Q: Why after a certain period the growth rate of the culture decreases until growth stops?
A: Warmth, dampness, pH levels and oxygen levels are the four major physical and chemical components…
Q: What are types of cell culture media?
A: A cell culture medium is solid or liquid in nature. It is a mixture of all necessary nutrients…
Q: Where should a label be written on an agar plate?
A: The aseptic technique is applied in a laboratory setup to reduce the risk of contamination. It…
Q: PART B Re-watch the video and explain why the following steps are necessary: • Why use tweezers to…
A: Introduction Antibiotics are antimicrobial substances that are effective against microorganisms.…
Q: On what medium is the membrane filter incubated? Describe the appearance of coliforms on this…
A: Membrane filter technique is used for the enumeration as well as isolation of microbes in the water…
Q: how does increasing the incubation temperature at which a plate containing psychrotrophic bacteria…
A: Psychrophiles or cryophiles (adj. psychrophilic or cryophilic) are extremophilic organisms that are…
Q: What type of agar would you use to grow gram positive bacteria
A: Bacteria are different from the plant as well as animals. They require specific substances in the…
Q: Why should culture media after inoculation be incubated at an optimal temperature immediately?
A: Culture media, also called as growth media, are particular combinations of nutrients and other…
Q: why is microalgae spirulina is most commonly used to reduce air pollution?
A: Pollution is the presence of harmful substances in the environment. These harmful substances are…
Q: Why would a mold secrete an antibiotic?
A: Antibiotics are substances that are synthesized by microorganisms and can inhibit or destroy the…
Q: Why is it important to follow sterile technique?
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: why the vibrio bacteria might survive better in colder temperatures? what part of their DNA or…
A: There are several stimulus-response pathway which help Vibrio to survive better in colder…
Q: PART B Re-watch the video and explain why the following steps are necessary: Why use tweezers to put…
A: Please note as per the site regulations, external links are not watched. Hence, part A cannot be…
Q: why is it important that a small amount of inoculum be used in preparation of an agar slant
A: Agar is a jellylike substance derived from the purified cell walls of red algae. It is added to…
Q: What are the kinds of microtome with their corresponding type of embedding medium?
A: A microtome is a cutting tool that creates incredibly tiny material slices called sections.…
Q: hy is nutrient broth considered as a universal growth medium for bacteria?
A: Nutrient Broth is a general-purpose medium for growing a wide range of fastidious and non-fastidious…
Q: What would you expect to see if you cultured Gram-positive, lactose-fermenting bacteria on MacConkey…
A: Given: What would happen if you culture gram positive, lactose fermenting bacteria in MacConkey…
Q: Description of nitrogen-fixing bacterium Cell shape: Cell color: Gram stain reaction: (Total…
A: Rhizobia is a common group of nitrogen-fixing bacteria. It is a Gram-negative, rod-shaped, motile…
Q: Explain why some cells are pink and others are purple in Gram-stained bacterial smear.
A: Gram staining is a common method that is used to distinguish two large bacterial groups based on…
Q: what type of bacteria may cause spoilage in coconut water that has been in the fridge for more than…
A: Coconut Water Coconut water (CW) is a slightly sweet liquid made from the endosperm of coconuts.…
Q: why are psychrotrophic bacteria incubated at 7 degrees
A: Each species of microbe has a preferred temperature that lies somewhere between its characteristic…
Q: Would this bacteria be classified as gram negative or gram positive? Describe the shape and…
A: Gram staining is a simple technique, in which two categories of bacteria are identified based on…
Q: Why is biofilm development in catheters (tubes that can be inserted into a body cavity, duct or…
A: Catheters are thin tubes made of soft plastic material that can be inserted into the body. A urinary…
Q: How should agar plates be incubated? Why?
A: Incubating the plates to stimulate the growth of microbes is a crucial step in any microbiology…
Q: Why does dry heat require higher temperatures for longer time periods to sterilize than moist heat
A: Sterilization may be defined as the process which help in the complete removal of all…
Q: Why is 15 minutes generally used for sterilization? Why is agar added to medium?
A: Sterilization is the process in which all life forms like microbes (fungi, bacteria, viruses,…
Q: Which bacterium helps in dairy industry?
A: Bacteria are unicellular and prokaryotic organisms that live in wide variety of environments. It…
Q: Motile spiroplasmas cannot contain a normal bacterialflagellum; why?
A: Flagella helps in movement of the bacteria, motility.
Q: Can simply observing the colonies formed on agar plates and the results of a few biochemical tests…
A: Bacteria are of many types. They can be classified based on different properties such as cell wall…
Q: what is usefulness of columbia CNA agar? Can it be used to test water ?
A: Columbia Agar is a highly nutritious base medium The addition of the antimicrobial agents, colistin…
Q: What type of agar would you use to grow gram negative bacteria
A: Gram-negative bacteria are the bacteria that do not consist of the crystal violet stain and they are…
Q: What is bacterium Shigella ?
A: Bacteria are minuscule single-celled organisms found in millions in all environments, both within…
Q: Should cheesemakers be worried about endospore growth of Gram-positive cells? Why or why not?
A: Bacteria are organisms that are found almost everywhere on earth and are free-living cells that are…
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: Why does nigrosin not stain the bacteria?
A: Nigrosin is an acidic stain, used in the negative staining technique. Staining is a part of…
Q: How many colonies are present in this plate?
A: Microbiology is the study of microorganisms and associated topics. Microbiology has gone a long way…
Q: Are there any chemical differences between the cell walls of gram-positive and negative bacteria…
A: Bacteria are the prokaryotes which fall under Kingdom Monera. They can be found everywhere. They…
Q: Why do petroleum-degrading bacteria need to attach to thesurface of oil droplets?
A: Petroleum is a crucial strategic resource and all countries compete fiercely for it. The…
Q: staining method would you use to verify that the isolates are not Mycobacterium species? Describe…
A: Staining is a method of coloring biological tissues to increase the contrast. This technique is…
Q: How to make a bacterial cell competent
A: Bacterial cells can be made competent either naturally or artificially. Competent cells are cells…
Q: main goal of motility agar
A: MICROBIAL GROWTH MEDIA- It is the culture media that serves as a nutrient media for the growth of a…
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