Organisms replicate and a sample is transferred to Organisms replicate and a sample is transferred to fresh medium. fresh medium. Coccus Rod FIGURE 28.2 Competition The bacterium that multiplies faster yields the larger population.

Q: 120,000 100,000 80,000 60,000 40,000 20,000 15 20 25 30 35 40 45 50 Time (minutes) 0 5 10 55 60 65…

A: Bacteria are prokaryotic organisms found almost everywhere from deep-sea vents to space, from…

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: Bacteria exposed to penicillin do not die immediately, but they cannot reproduce. Explain why

A: Penicillins are a part of β-Lactam group of antibiotics , which are widely used to treat different…

Q: If a bacterium can ferment one type of sugar, it can ferment any sugar. If a bacterium can ferment…

A: Most bacteria metabolise sugar as a primary source of their energyobtained in the form of ATP.…

Q: An apple pie has 3 million bacterial cells. The crust might have been inoculated with 500 bacterium.…

A: Bacteria are prokaryotic organisms. They reproduce asexually without the formation of gametes.…

Q: In a viable plate count, each _________ represents a  _________fromthe sample population.a. cell,…

A: In microbiology, there are several methods to enumerate bacterial count in a particular sample. The…

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: A certain culture of the bacteria stripped her classes and national has 10 bacteria to double every…

A: Bacteria divide by binary fission. This means each cell divides into two identical daughter cells.…

Q: The number of bacteria in a culture every 2 hours and 30 minutes. If the initial number of Bacteria…

A: In the question, we are given: Generation time of bacteria: 2 hours and 30 min.  Initial number of…

Q: Fill in the Blank. Round it to the nearest whole number. A mutation occurs in a single bacterium…

A: The time taken by bacteria to divide in a culture so that its population is doubled is known as…

Q: What is the growth rate of the E. coli population?

A: We know that the bacteria doubles after a certain time: Number of bacteria in beginning of growth…

Q: A culture medium on which only Gram-positive organisms grow is called a(n):   Question 9 options:…

A: Culture media is referred to as a media composed of gel or liquid to grow microorganisms. Different…

Q: Cats and dogs transfer bacteria onto their fur by: SniffingLickingShakingRunnin

A:

Q: E coli bacteria, unlike most bacteria, can generate ATP through both anaerobic and aerobic…

A: Need to find the best option from the available four options related to E.Coli

Q: Select the correct answer from the answers provided. In a viable plate count, each ch represents a a…

A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…

Q: Archaea are generally resistant to penicillin since they lack a peptidoglycan layer. Select one:…

A: These are single celled organisms which are somewhat similar to bacteria and somewhat like…

Q: In Microbiology, are there technologies that can help make Bacterial Culture and Sensitivity done…

A: Conventional methods for identification of bacteria and its drug susceptibility testing depends on…

Q: Citing data from the results table, tell which antibiotic is most effective against this type of…

A: Antibiotic zone of inhibition Antibiotics are a class of compounds or chemical that inhibits the…

Q: A culture of bacteria is found to have a DRT of 2 minutes. How long would it take to reduce the…

A: Heat is used for sterilization of those substances that can withstand it over longer periods or…

Q: Which of the following is false about a colony? O A colony is a population of cells formed from a…

A: The correct answer is E . A Colony is mixture of different bacterial cells  Bacterial colony is a…

Q: Microbe that causes Disease Environment in which the microbe thrives How to break the environmental…

A: The microbiology studies about both the diseases causing microbes and beneficiary microbes, about…

Q: /hich of the following are ways in which forming a biofilm can make a bacterial fection more…

A: Option b.

Q: A loopful of bacteria containing 1000 bacterial cells is inoculated into a nutrient broth and…

A: It is a multiple choice question.

Q: A food sample was cooked. The bacterial population in the food decreased from 500,000 cells to 5…

A: A Decimal Reduction Time (D-value) is a term that describes how long it takes to lower a number by…

Q: A mutation occurs in a single bacterium that causes it to produce a new enzyme. This enzyme helps…

A: Bacteria are simple unicellular organisms that have a cellular level of organization. They undergo…

Q: The bacteria above is best described as: coccus shape, clustered and Gram negative bacillus shape,…

A: Microscopic, single celled organisms which are found in every environment in millions are known as…

Q: Citing the data from your results table tell which antibiotic is the most effective against this…

A: Antibiotic Sensitivity Test is a test used to evaluate to efficacy of particular antibiotic in…

Q: The term "Superbug" refers to? A. Certain bacteria strain that can grow in all kinds of unfavorable…

A: Introduction :- Superbugs are bacteria, viruses, parasites, and fungi strains that are resistant to…

Q: Quorum sensing represents a method by which bacteria can measure what? Choose one: the size of a…

A: Question -  Quorum sensing represents a method by which bacteria can measure what? Choose one: the…

Q: In the Griffith experiment, why didn't the bacteria from rough colonies harm the mice? Because they…

A: Bacteria like Streptococcus do not have membrane-bounded organelles, can reproduce individually,…

Q: An exponentially growing bacterial population increases its number from 103 to 1010 in 4.5 hours and…

A: 37 generations have gone by the end of the incubation.

Q: Fill in the blank: Bacteria found in very cold areas are called _________________

A: Bacteria are a type of biological cell which belongs to the prokaryotic domain. Bacteria are the…

Q: Explain what is happening with this graph that charts the reactions ofa mesophilic bacterium to…

A: Bacteria are unicellular, prokaryotic organisms which are devoid of membrane bound organelles and…

Q: A mutation occurs in a single bacterium that causes it to produce a new enzyme. This enzyme helps…

A: Microorganisms are basic unicellular life forms that have a cell level of association. They go…

Q: If you start with one bacterium (generation 0), how many bacteria would you have by generation 6 as…

A: Under the suitable conditions a bacterium doubles at regular intervals. It is shown by exponential…

Q: You sample cole slaw for bacteria soon after purchase, and after it has been left out on the kitchen…

A: The interval for formation of 2 cells from 1 cell is called generation. Time required for this to…

Q: A SAB agar plate is exposed to air for 30 minutes and then incubated. The 10 colonies which grew on…

A: Sabouraud Dextrose Agar (SDA) is used for the isolation, cultivation and maintenance of…

Q: Draw a graph that shows the potential population growth of a bacterial population that starts with…

A: An increase in the number of individuals in a particular population is the population growth.…

Q: mutation occurs in a single bacterium that causes it to produce a new enzyme. This enzyme helps the…

A: Bacteria are simple unicellular organisms that have a cellular level of organization. They undergo…

Q: A species of bacteria has a doubling time of 24 hours. After incubating the initial population for…

A: In vitro, under desirable situations, a growing bacterial population doubles at periodic intervals.…

Q: Bacteria having fimbriae has the advantage over one that lacks fimbriae because: a. It can be…

A: Cell surface appendages are tubular or fibrous protein structures found on the surface of bacterial…

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: A culture starts with 8600 bacteria. After 1 hour the count is 10, 000. A. Find a function the…

A: Bacteria are prokaryotic organisms that are devoid of cellular organelles like endoplasmic reticulum…

Q: Describe what happens in an E. coli bacterium that has been living on the top of your fridge for the…

A: A vast majority of eubacteria and archaea bacteria grow in diverse environmental conditions include…

Q: Suppose you performed a Gram stain from a pure culture of bacteria and observed a field of red and…

A: Gram stain is a common method useful to differentiate two large groups of bacteria based on their…

Q: A culture of a certain bacterium grows according to the law of exponential growth. If there were 130…

A: The exponential period of expansion is a form of balanced growth in which all cells/bacteria divide…

Q: What is a lawn of bacteria?     an uneven layer of bacteria covering an entire surface…

A: Bacteria are microscopic, single-celled organisms that thrive in diverse environments. These…

Q: Streak plate allows microbiologists to isolate one species of bacteria from another. Why is that…

A: Aseptic technique is basically the mindset of keeping things free of contamination, as the world we…

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.