Could you spread plate in the usual Petri dish a 10mL inoculum? Why or why not?

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: Coliform bacteria are common contaminants of meats. Why might one expect to find coliforms in…

A: Coliform bacteria is a Gram negative, rod shaped bacteria which when present in water will indicate…

Q: Bacillus cereus divides every 30 minutes. You inoculate a culture with 100 After 3 hours, how many…

A: Bacillus cereus is a rod-shaped, gram-positive bacteria. It is a facultative anaerobe. It is a toxin…

Q: A sample must contain many microbial cells for any to be seen by microscopic examination. Why?

A: Microbes or microorganisms are very small organisms that cannot be visible from naked eyes and thus…

Q: A culture of E. coli has a concentration of 5 x 108 cells/mL. How many times do you have to dilute…

A: Given: 1. Number of colonies: 2502. No. of bacteria in culture: 5 X 108 3. Volume plated: 0.1 ml 4.…

Q: There are five bacteria in a petri dish and its number triples every minute. How many bacteria are…

A: Bacteria are organisms that are found almost everywhere on earth and are free-living cells that are…

Q: Why is there a need for an incubator in the lab? How about incubating cultures at room temperature?…

A: The Incubator is an insulated device in which the conditions like temperature, humidity, pH, and…

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: Explain why a green metallic sheen is formed when E. coli is grown on Eosin Methylene Blue Agar.

A: Escherichia coli is the gram negative bacteria.

Q: Could you explain the difference ( and possibly show the difference) between a growth on Agar slants…

A: Growth of cultures in slants and broth can provide us with useful information regarding their…

Q: Briefly explain this statement "Cereal  dilution technique of microorganism in food" - Please answer…

A: Because food is a rich source of nutrition for microorganisms, they develop and multiply in food…

Q: If you run the motility test on Motility Medium and hanging drop for Bacillus cereus and B.…

A: Answer:  HANGING DROP TECHNIQUE : It is the special type of wet mount which is made from a drop of…

Q: A cell is 25 μm wide when viewed at 1,000× magnification. Thismeasurement can also be written…

A: 1,000× magnification means that to the naked eye, the image would appear 1000 times larger than it…

Q: Lipopolysaccharide (LPS) is a major feature of which cell wall? O Fungal O Viral O Gram-positive…

A: Lipopolysaccharide are large molecules consisting of a lipid and a polysaccharide. They are found as…

Q: How can disinfection of milking equipment by farmers postpone spoilage of milk in your refrigerator?

A: The process where chemicals or physical agents called disinfectants are used to eliminate the…

Q: Why do you think an infection from gram-negative bacteria can be more diff treat with drugs than a…

A: There are two types of bacteria depending upon their cell wall. Gram positive bacteria are known as…

Q: Dilute cells from an old culture 1:200 into 5 mL of fresh media. What volume of the old culture…

A: Introduction Dilution is the process of lowering the concentration of a solute in a solution by…

Q: You have 0.05 ml of kombucha that contains microbes at a concentration of 8.2 x 10^6 CFU/ml. You…

A: Creating proper dilutions and working out the colony-forming units or CFU/ ml is one integral part…

Q: The picture shows bacteria (Escherichia coli) under a microscope Do you bacterial growth or no (…

A: Escherichia is a gram-negative bacterium, which under the microscope is shaped like a rod with a…

Q: Milk is usually pasteurized by a. the high-temperature short-time method c. batch method b.…

A: Pasteurization is the process, in which bacteria are killed and the sterilization is done to improve…

Q: What is the purpose of food irradiation, and how does it work?

A: Irradiating food kills bacteria and extends life of the food.

Q: The picture shows bacteria (Escherichia coli) under a microscope Do you bacterial growth or no (…

A: Culture media are an integral part of microbiology lab where bacteria can be grown on different…

Q: Motility is best observed with a a. hanging drop preparation c. streak plate b. negative stain d.…

A: Motility is the ability of bacterial cells to migrate from one location to another. The flagella…

Q: Agar is superior to gelatin as a solidifying agent because agar a. does not melt at room temperature…

A: Agar is used as a medium for culturing in laboratories.

Q: Membrane filters

A: Membrane filter are made up of cellulose.

Q: Could you spread plate in the usual Petri dish a 10mL inoculum?

A: The spread plate method is a technique to plate a liquid sample containing bacteria so that bacteria…

Q: You have a broth medium that you would like to turn into a solid medium in order to do streak…

A: The "nutrient broth" is essentially nutrient agar without the solidifying agent. They stay liquid at…

Q: If the temperature of the incubator were to be increased from 35 to 45°C, how would this affect the…

A: The growth of bacteria is influenced by many physical factors. Temperature is one of the significant…

Q: A meteorite lands at your feet. You remove 4 equal weight samples from the uncontaminated interior…

A: Introduction : L glucose and D- glucose differ in their structures at the chiral carbon. L- glucose…

Q: Assume an inoculum with a cell density of 108 cells per mL. The entire generation time takes 30…

A: Binary fission is the most common method of reproduction among bacteria. In this process, a single…

Q: Although sparse, there is still visible growth of microorganisms in Plate D which is the…

A: Inoculation is defined as the act, process, or occurrence of inoculating, specifically from one…

Q: typical labeled sketch of a bacterial growth curve in batch culture

A: Batch culture is a laboratory culture method in which bacteria has grown in large scale.  Here…

Q: Expalin in detail the statement given, "Refrigerating food prevents the growth of all bacteria", is…

A: Microbes, also referred to as microorganisms, are invisible to the unaided eye. They can generally…

Q: test a efficient test for a unkown intestinal bacteria.

A: Starch hydrolysis test is a testing method which is used to identify bacteria that can hydrolyze…

Q: suffering severely due to alkaloid production a

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

Q: In an experiment, the bacteria were placed in dropper bottles containing glycerol as a carbon…

A: The purpose is to kill any previous bacteria on the loop before it is exposed to the bacteria. The…

Q: Mold is more likely to appear in your shower than, say, your sock drawer. Why might this be the…

A: Mold is a type of fungus which commonly reproduces by the production of spores.

Q: The picture shows bacteria (Escherichia coli) under a microscope Do you bacterial growth or no (…

A: In microbiology the bacterial culture plate is used for observing the growth of the microorganisms.…

Q: Could humans exist on chemically defined media for 48 hours?

A: A chemically defined medium is a growth medium whose components and their concentration (or…

Q: We use salting and freezing to preserve our food against bacteria. Explain why is food preserved…

A: Food preservation refers to the practices of food processing that reduce the deterioration of food…

Q: You want to determine the amount of cells in a culture.  You dilute the suspension to 10^-4 and…

A: For calculating the number of bacteria or microorganisms within a sample we usually used the serial…

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: If you saw large, eukaryotic cells in the preparation made of your gumline, they were most likely…

A: Eukaryotic cells do not have a peptidoglycan layer to retain the crystal violet stain so its not…

Q: It is called a "Negative Stain" because the stain has a negative charge, and is therefore: repelled…

A: An acid dye has negative charge hence are able to bind to the cell structures that are positively…

Q: How would you determine if a disinfectant or antiseptic is bactericidal or bacteriostatic

A: A bacteriocide is a chemical substance that kills bacteria. They can be disinfectants, antibiotics,…

Q: Explain the changes that milk undergoes when suitable starter / inoculum is added to it . How does…

A: Microbes are microscopic organism that cannot be seen as such through naked eyes but microscope is…

Q: Why does honey stay at room temperature for months/years without "spoiling" or being affected by…

A: SPOILAGE- Mostly contamination comes from external sources during bleeding, handling, and at the…

Q: The culture contains no bacteria. Refrigeration slows bacteria growth. Temperature is unrelated to…

A: Solid or a liquid preparation that contains all the necessary components required for growth is…

Q: Which of the following regarding controlling microbial growth is true? a) Microbial death rate…

A: Microbes are small organisms that may cause diseases.

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.