The phase of the bacterial growth curve in which the rate of cell death exceeds the rate of cell multiplication is:

Q: The time between inoculation and the beginning of growth is usually called the: A) O lag phase B) O…

A: Provided with the correct conditions (food, correct temperature, etc) microbes will grow terribly…

Q: Bacterial growth depends on many environmental factors, including the temperature of the…

A: The aseptic technique is a method used to prevent the contamination of the culture from the…

Q: Which of the following are ways in which forming a biofilm can make a bacterial infection more…

A: Biofilms are a collective of one or more types of microorganisms that can grow on many different…

Q: Why is the level of contamination measured as number of colonies rather than size of colonies?

A: Microbiological contamination refers to the presence of unwanted or accidental introduction of…

Q: Describe (or draw) the growth of bacteria in the 5 categories of oxygen requirement

A: Bacteria are very small microscopic prokaryotic organisms that are present all around us in the…

Q: Describe the bacterial colonies providing information on shape, color, size, elevation and edge…

A: Nutrient Agar is used for the cultivation of bacteria and for the enumeration of organisms in water,…

Q: Each of the following is a characteristic of bacterial endospores, EXCEPT: Contain the bacterial…

A: It is critical that we understand microbes and their applications since they may be both useful and…

Q: DRAW IT Draw the following growth curves for E. coli, starting with 100 cells with a generation time…

A: Here, the growth curve will be drawn by plotting Time on X-axis and growth on Y-axis.

Q: Bacterial capsule helps in adherence of bacteria to surface in its environment. It also protects the…

A: First statement is true. Second statement is false. Bacterial capsule helps in adherence in its…

Q: Plateau Phase Death Phase Lag Phase Exponential Growth Phase Fen Ive cels Many e cees Dead cets 15…

A: Bacteria grow rapidly under a favorable environment where all the necessary conditions for its…

Q: Match the description to the correct phase in a standard bacterial growth curve. best time to…

A: The proliferation of bacteria into daughter cells is referred to as bacterial growth. The growth of…

Q: The following are critical factors for bacteria to survive EXCEPT? A. Appropriate temperature B.…

A: Bacteria can survive in temperatures that are hotter and colder than mammals, but they thrive in a…

Q: How would a limited food supply affect the bacterial growth curve? The lag phase would be longer…

A: Bacterial growth curve is the number of living cells plotted against time. It has four phases, these…

Q: In the period of bacterial growth,the phase where cells grow rapidly by binary fission is ? a)lag…

A: According to the question, we have to identify the period of bacterial growth, in a phase where…

Q: TRUE OF FALSE: Is E coli colonies would be pink mucoid in Eosin Methylene Blue Agar (EMBA)? Is…

A: EMBA or Eosin Y methylene Blue Agar is used for the identification of Gram-negative bacterial…

Q: Bacterial growth depends on many environmental factors, including the temperature of the…

A: The growth of microorganisms is indicated by an increase in the number of microbial cells in the…

Q: True or False Exposure of bacterial cells to antibiotics: 50s is disrupted 60s is disrupted 80s is…

A: Organisms that have only one cell, are microscopic, and can exist anywhere(inside or outside the…

Q: Describe the bacterial colonies providing information on shape, color, size, elevation and edge…

A: *morphology of Escherichia coli is identified as rough or a smooth form. *The trough  forms colonies…

Q: Consider the given bacterial growth curve (X axis is time, Y axis is log number of viable cells). At…

A: The number of live cells in a bacterial population over time is represented by the bacterial growth…

Q: Discuss most common Bacterial Reproduction method, define generation time and the concept of…

A: Bacterial division can be divided into two parts-DNA replication and chromosome segregation, and a…

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

A: It is a multiple choice question.

Q: List out 4 environmental factors (ie, temperature, pH level, water availability) that affect…

A: Bacterial growth occurs when a bacterium divides into two daughter cells, a phenomenon known as…

Q: A 23 year old woman has 10 E coli in her bladder. The organism has generation time of 20 minutes.…

A: Escherichia coli doubles itself asexually by the process known as binary fission. To predict the…

Q: Conditions for an average autoclave run are and bacterial endospores. O 21 degrees C/5 psi/5…

A: Autoclaving is the means of wet mode of sterilization. Autoclaves use high temperature combined with…

Q: For the following methods of bacterial enumeration does the method determine total count or viable…

A: MPN (i.e. Most probable number), microscopic count , standard plate count, turbidity is type of…

Q: What method of bacterial measurement does this graph represent? Is it considered direct, or…

A: Here Bacterial growth is measured in terms of absorbance so, bacterial growth is measured with the…

Q: Which of the following is not true or related to bacterial capsule formation  A. Rigid and attached…

A: Bacteria are unicellular prokaryotic microorganisms (nucleus is not enclosed in a nuclear membrane)…

Q: A lab technician is working with a bacterium in pure culture (in 5 ml of liquid media in a test…

A: Mesophiles  Mesophile bacteria are those bacteria which grow in optimum range of temparature not to…

Q: Directions: Please provide 3-4 sentences giving a brief description of how your experiment could be…

A: Yeasts are able to grow in foods with a low pH (5.0 or lower) and in the presence of sugars, organic…

Q: Features of continuous cell culture include the following, except ________ . a.addition of product…

A: Introduction: A single cell type that may be serially multiplied in culture for a set number of cell…

Q: Name two methods of control of growth for Mycobacterium tuberculosis pathogen in a patient with the…

A: Mycobacterium tuberculosis is transmitted mainly via airborne particles  known as droplet nuclei,…

Q: TRUE OF FALSE: Is E coli colonies colorless in Eosin Methylene Blue Agar (EMBA)? Coliform colonies…

A: Answer: Introduction: Bacteria inhabiting or predominantly present the human intestine is…

Q: Name two methods of control of growth for Mycobacterium tuberculosis pathogen in a patient with the…

A: 1.)good ventilation: as TB can remain suspended in the air for several hours with no ventilation.…

Q: Two flasks of E. coli are grown in batch culture in the same medium (2% glucose and amino acids; no…

A: The microorganism can be grown in-vitro. They can grow in semi-solid, liquid, or solid substances.…

Q: What is the major difference between an enrichment culture and a selective culture?

A: Culture media is used for cultivating microorganisms. Both selective media and enriched media are…

Q: Describe bacterial sporulation in your own words.

A: Bacterial sporulation is a method of evading unfavourable environmental conditions. But some regard…

Q: Match the description to the correct phase in a standard bacterial growth curv best time to perform…

A: The method of multiplying bacteria in a predetermined medium under controlled conditions in a…

Q: Which of the following applies to the Zone of Inhibition? None of the answers apply Decreases in…

A: Introduction :-  Zone of inhibition is the zone or area created by any given antibiotics in the…

Q: What color would the bacterial cells have when viewed microscopically after the following treatment?…

A: Gram staining is a technique to distinguish between two broad types of bacterias on the basis of…

Q: Identify and explain the different parts of the bacterial growth curve Please explain with as LITTLE…

A: A bacterial growth curve study requires the cultivation of viable cells in a fresh sterile medium,…

Q: __________ indicates ________________ in the cell culture.

A: Cell culture is a  primarily techniques in life sciences. This is a common term that is  used for…

Q: A culture of Staphylococcus of unknown density is diluted as follows (letters represent each step):…

A: In a microbiology lab - food or environmental  - samples are regularly diluted to find out the…

Q: Bacterial growth depends on many environmental factors, including the temperature of the…

A: The term "aseptic method" refers to a combination of medical practises and procedures that help…

Q: As a Medical Laboratory Scientist you want to perform sub-culture (a method that transfers bacterial…

A:

Q: . Bacterial spores function in bacterial reproduction .  a) True b) False

A: a spore is a unit of sexual or asexual reproduction that is formed, in unfavourable conditions.…

Q: In a new batch of culture medium, a group of sub-lethally wounded bacterial cells were transferred.…

A: Lag Phase- In this phase bacteria are still adapting themselves to the culture and are maturing with…

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: Bacteria can increase in their number by binary fission into two daughter cells. The rate of…

A: The bacterial growth curve is divided into the four-phase the lag phase, the log phase or…

Q: bacterial culture has a concentration of 3.2 x 108 cells /mL. You dilute this culture as follows:…

A: CFUs are a measure of the number of progenitors present in a given population of cells; if an…

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