You plated 1.0 mL of a sample diluted by a factor of 10^-5 and you counted 50 comonies after incubation. The concentration of bacteria in the stock culture is

Q: A food sample with an unknown number of contaminating bacteria was serially diluted to 10-6. A…

A: Serial dilution of a food sample containing unknown quantity of contaminating bacteria was performed…

Q: Using the diagram above, answer questions 26-35: 26) To focus on a specimen when you are using the…

A: 26) To focus on a specimen when you are using the scanning power objective lens, you would use the…

Q: One ml of a water sample was placed in a Petri dish with melted agar. After incubation, 129 colonies…

A: A colony-forming unit, or CFU, is a measurement of the concentration of microorganisms in a test…

Q: 1. A plate with a final dilution factor of 107 produced 210 colonies. a) What was the original…

A: Dilution is the process of diluting or mixing two or more substances or compounds; it is also known…

Q: a food sample with an unknown number of contaminating bacteria was serial diluted to 10-6. the 10-6…

A: Serial dilution is a process of diluting a particular sample in a solution. The purpose of doing a…

Q: In the ELISA, the pH the coating buffer was 9.6 whereas the pH of the sample buffer (PBS based) was…

A: Coating buffer in ELISA is a mix of sodium carbonate and bicarbonate at ph 9.4. This gives charge to…

Q: transferred to the plate. After 24 hours there were 60 colonies on the plate. What is the dilution…

A: b. The dilution factor is 1000. The patient sample contains 600,000 cells/ml

Q: If the concentration of E. coli in a broth is between 104 and 106 cells per mL, the best way…

A: E.coli are the type of bacteria that is known to cause many illness in humans. E.coli is cultured in…

Q: diluted a bacterial culture a million-fold. you then plated out 0.1 mL of dilution and after…

A: The growth in a body-temperature incubator of micro-organisms on a medium of culture, like agar, for…

Q: You take 10 ml of a stock solution, which is at a concentration of 1000 phage/ml, and dilute it to a…

A: A serial dilution is a laboratory technique that uses a series of consecutive dilution steps to…

Q: D A с E H Using the diagram above, answer questions 26-35: 26) To focus on a specimen when you are…

A: An optical tool used to magnify small things such as a microscope. The objective lens, eyepiece,…

Q: Noah wanted to transfer Staphylococcus aureus from a broth to an agar plate. He picked up the broth…

A: The aseptic techniques are applied in the laboratory setup to reduce the risk of contamination. It…

Q: 1) What are all of the different colony types that can be seen on a mixed-culture streak plate?  2)…

A: Hi! Thanks for your question. As you have posted multiple questions, I am answering only the first…

Q: If five colonies were counted on a 10–3 dilution plate streaked with 0.01 mlof urine, what was the…

A: The standard plate count estimates the total aerobic population density of microbes in a sample by…

Q: A microbiology student was given a mixed culture of two different gram positive bacteria species to…

A: In Microbiology, we grow bacteria on culture medium. Culture media contains specific mixture of…

Q: You prepared 10-7, 10-8, and 10-9 dilutions of a bacterial suspension in sterile saline. Then you…

A: Introduction There are different culturing techniques such as agar plates, broth culture, stab…

Q: Koch's postulates include all of the following EXCEPT O 1) Isolate the organism in pure culture. The…

A: Koch's postulates are a series of findings and experimental criteria suggested in the late 1800s by…

Q: You inoculated a culture with an initial cell count of 6.5x10^3 cells. The generation time for this…

A: Bacteria are prokaryotic organism and divides by binary fission that is responsible for doubling the…

Q: culture that contains multiple types of organisms.

A: The microbiological culture or microbial culture can be defined as the method of multiplication of…

Q: You are hired in one of the microbiology labs in Memphis and your first assignment to identify…

A: The last reagent used in Gram staining, which is crucial for differentiating between Gram-positive…

Q: What do to do when the disstillation did not make the sample completely pure? What could have went…

A: Distillation is a process that is based upon the boiling points of various liquids present in the…

Q: A scientist transfers 0.1 mL phage stock to a tube containing 9.9 mL tryptic soy broth. She then…

A: The total fold of dilution represents how much the original concentration has been reduced due to…

Q: -For each item listed below, select a sterilant that you feel is the most suitable and effective for…

A: A growth medium is intended to promote the growth of a variety of microorganisms or cells by the…

Q: Is the Peptone Iron Agar (PIA) a complex or defined medium? Explain based on its composition. Is the…

A: Depending on their composition, media can be classified as defined and undefined media. Defined…

Q: If an OD=1.0 culture yielded a plate count of 2.2 x 107 cfu/mL. What is the cell count of an OD=0.5…

A: Answer: The relationship between colony-forming units per millilitre (cfu/mL) and optical density…

Q: What is the statistically significant number range of colonies that may be counted on a Petri dish…

A: 1. 30-300 Sorry but as per Bartleby policy i can only solve first part. Please can you upload the…

Q: X D A B C 11:32 E MT Sp 24 H K 56% 50 5 Using the diagram above, answer questions 26-35: 26) To…

A: 26) To zero in on an example with the examining power objective focal point, you would utilize the…

Q: thanol has been carried over into your DNA sample (two answers possible here, select both of them)…

A: DNA is not soluble in ethanol . But when ethanol is there DNA gets separated by forming white…

Q: 1. You are asked to make 150 ml of 2% agarose using a well-known buffer. How many grams will be…

A: Note: We are authorized to answer one question at a time since you have not mentioned which question…

Q: You obtain a 1 mL sample of contaminated drinking water in order to calculate the number of  fecal…

A: The evaluation of fecal microscopic organisms in water could be a critical public well-being measure…

Q: ) If you counted 500 CFU’s in the petri dish for number 6 and 5000 CFU’s in petri dish for number 7,…

A: See below section.Explanation:Detailed explanation:a): Let's break down the situation and explore…

Q: You perform the Methyl-Red(MR)& Voges-Proskauer(VP)test and gather the followingresults:…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: One hundred microliters (0.100 ml) of a 10-5 dilution of a bacterial suspension plated on an agar…

A: Colonies of bacteria live on solid media. A colony is characterized as a detectable microorganism…

Q: Placing a 1 ml sample of raw milk into a 99ml sterile water, then transferring a 1ml sample from…

A: The process of decreasing the concentration of the solute present in a solution is known as…

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.