Ted heats some food just to boiling, and stores some of it immediately in a container which he places in the refrigerator. A week later he takes the food out and finds it has spoiled. The microbes that spoiled the food are probably ________ organisms.

Q: You have 2 organisms, A and B. One is an obligate aerobe and the other is an obligate anaerobe. You…

A: Microorganisms are categorized based on their oxygen requirement: Obligate aerobes Obligate…

Q: At higher altitudes, water boils at a lower temperature True False

A: water boils at 100 degree centigrade at optimum conditions. water freezes at 0 degrees at optimum…

Q: Why might only the Presence or Absence of MUG metabolism, not be enough information to determine if…

A: Biochemistry is the science of study of the internal biochemical processes of organisms. The…

Q: How to make citric acid (method)  Submerge fermentation, surface fermentation etc Why it is…

A: Citric acid is generated in the largest quantities of any organic acid and finds extensive use in…

Q: What are the four most important chemical nutrients for microbial growth? O Carbon, copper,…

A: Microbial growth refers to the growth of a population, not to an increase in the size of the…

Q: If you were to break a laboratory mercury thermometer, flushing the liquid mercury down a sink would…

A: Answer :  Option 2 :- mercury is subject to biological magnification

Q: If a bacteria was found to survive very well in a pond of strong acid, but died quickly when exposed…

A: Certain bacteria are able to survive high salinity, some are able to survive at low pH while some of…

Q: You walk by a laboratory and notice that people are working in full-body HAZMAT suits, using two…

A: Biosafety Level (BSL) is a set of containment principles and practices established to protect…

Q: You have observed the following data from an aerobic plate count. How many bacteria are in the…

A: Colony forming unit or CFUs/ml is the method of counting the viable cells.

Q: To prevent any signs of contaminants in the broth it is sterilized by heating. Sterilization by…

A: A broth refers to the growing media for microorganisms. It consists of ingredients that are known to…

Q: Dr. Cantu discovers an archaeon living in a hot spring in the El Tatio geyser field in Chile where…

A: Answer :- Option (C) is correct. - Thermophilic.

Q: Which of the following is the Jello in the petri dishes meant to resemble?     Natural…

A: Answer :- In laboratory settings, petri dishes are commonly used for a variety of experiments and…

Q: True or False: Acidophiles live best in acidic conditions. True False

A: Acidophiles are organisms that are belong to all the three domains: such as Eukaryotes, Bacteria and…

Q: Detergents are______.

A: Detergents are the surfactants or the mixture of surfactants. Surfactants are the compounds that…

Q: Amount of ddt per organism

A: DDT, or dichlorodiphenyltrichloroethane, is a colorless, odorless, and tasteless crystalline…

Q: Paper recycling companies refuse to collect paper products that are contaminated with food or have…

A: The sorority member might be interested in learning about the recycling process. The recycling…

Q: Oxygen can be a friend or foe to aerobic or anaerobic microbes. what oxygen relationships to…

A: Introduction:- Aerobic Bacteria Aerobic bacteria are bacteria that develop in the presence of…

Q: Do you think rules and guidelines on laboratory safety and chemical handling are designed to hinder…

A: Laboratory handling and chemical handling is important for saving our life. Laboratory handling…

Q: list some examples of broth media

A: Broth media are liquid nutrient media used for preparing inoculums of microorganisms. They contain…

Q: A classmate approaches you and says they performed the nitrate test. The classmate tells you after…

A: Nitrate reduction test detects whether a bacterium can utilize nitrate as an electron acceptor. It…

Q: I need help answering this queshtion based on the answer in the article  you are whitin a…

A: Microbiota: Microbiota refers to the collection of microorganisms that live in and on the human…

Q: 2. What can you conclude about an aerotolerant anaerobe based ONLY on its Agar Shake result (shown…

A: Aerotolerant Anaerobes::  Aerotolerant anaerobes create ATP through fermentation. They don't use…

Q: Some samples may have little to no growth even though microorganisms are present. List four factors…

A: Microorganisms, including bacteria, fungi, viruses, and other microscopic…

Q: All of the following are ways to produce adenosine triphosphate except? O Substrate Level…

A: All of the following are ways to produce adenosine triphosphate except? Ans- Hydrolysis Reason-…

Q: To achieve a hundred fold dilution you would add _____ microliters of sample to the appropriate…

A: The dilution method is used to achieve the desired concentration of the sample in a tube or a…

Q: A chemist has discovered a drug that blocks phosphoglucoisomerase. This drug would NOT be a good…

A: Phosphoglucoisomerase is an enzyme which is used in the glycolysis and gluconegensis. It is an…

Q: (Select all that are correct) What are the key characteristics that define a material to be a…

A: A biomaterial is a substance that has been created to interact with biological systems for…

Q: Turpentine oil is obtained from_______?

A: Turpentine is a volatile oil.  It is used for polishing the furniture.

Q: Mentions the advantages of membrane bioreactors in water treatment

A: Membrane bioreactors (MBRs) combine membrane technology with biological processes to clean…

Q: Lipolysaccharides in Gram negative cell walls that stimulates the body to release chemicals that…

A: The cell wall of gram negative bacteria is composed of a layer of peptidoglycan called the inner…

Q: Most pathogens are found in this temperature group. O Psychrophile Mesophile O Thermophile

A: Answer : the pathogens are found in this temperature grouo are : mesophiles.