(b) In a batch bioreactor, the growth of a microbial population is often limited by the availability of an electron donor (a.k.a. food). Draw the typical bacterial growth curve in a batch culture as a function of time in the diagram provided below, label (division), and name each stage of the growth curve. Number of cells Time (days)

Q: List the four phases of the bacterial growth curve:

A: Microbes in a culture can be grown in order to obtain a large number of cells. Bacterial growth is…

Q: In a bacterial culture on an agar plate, what is a zone of inhibition?     An area where the…

A: Microbial culture is a method of multiplying microbial organisms by letting them reproduce in…

Q: Consider the growth curve shown below. Cells were grown in a medium containing 1 % w/v glucose and…

A: The given graph represent the biphasic growth of cells. Cells are grown on two carbon sources…

Q: In the lab you are testing a bacterium's oxygen requirement for growth. You grow your bacterium in a…

A: On the basis of the oxygen requirement, microorganisms can be classified as aerobic and anaerobic.

Q: A bacterial strain is growing exponentially. At 1:00pm the titre of the culture is 2x10^3 cells per…

A: The objective of the question is to determine the number of generations that have elapsed, the…

Q: MacConkey agar inhibits the growth of Gram-positive bacteria while encouraging the growth of…

A: In microbiology, MacConkey agar is a versatile medium that is frequently used. It is a selective…

Q: You inoculate a species of bacteria on a MacConkey agar which normally shows positive growth and the…

A: MacConkey Agar (MAC) is selective and differential agar that is used to isolate non-fastidious…

Q: Collecting data that can then be transformed into a bacterial growth curve is usually done using a…

A: A spectrophotometer is an instrument used to measure the amount of light absorbed by a sample. The…

Q: ing is a recipe for a bacterial growth medium: 35 g Dextrose, 12 g Aga 1.2g Salt, 3 g Yeast cell…

A: Growth medium can be of many types. Growth media is a media which contains nutrients for chemical…

Q: A bacterial organism is used to inoculate mannitol broth medium. Following incubation the broth is…

A: A nutrient growth medium is a type of solution or mixture that is designed to provide nutrients to…

Q: What is the optimal growth conditions of total bacterial count (TBC) in freshwater. Discuss it in…

A: Total bacterial count (TBC) refers to the total number of bacteria present in a given sample or…

Q: Discuss fresh, living preparations vs fixed preparations. What are the advantages and disadvantages…

A: Introduction Microbiology is a branch of biology that deals with the study of microorganisms,…

Q: This diagram shows the filter paper method used to evaluate the inhibitory effect of chemical…

A: Factors that affect the size of the zone of inhibition-  effectiveness of the inhibitory agent…

Q: Place the following in the correct order in terms of steps taken, followed by the consideration…

A: The step and consideration are arranged in a sequence.

Q: A 3.0 L batch bioreactor is used to grow E. coli bacteria, which have an initial concentration of…

A: A batch bioreactor is a closed device utilized to grow microorganisms for example bacteria, yeast,…

Q: Indicate which of the following observations can be made when observing growth on nutrient agar.…

A: Colony morphology can be referred to as the visual appearance of bacterial colonies on a plate of…

Q: a) Create a bacterial growth curve with log values of CFU/ml on the Y-axis andthe time

A: Bacterial growth curve is a graphical representation of number of live bacterial cells over the time…

Q: Consider the table below. What is the TDT for E. coli at 70 C? Please include the unit.

A: The image displays a table showing the lethal effects of heat on E. coli at various temperatures and…

Q: A microbiologist has isolated a new strain of bacteria, and is trying to characterize aspects of its…

A: Psychrophilic bacteria are cold loving bacteria that grows and reproduce at lower temperatures…

Q: As bacteria grow, they produce acidic metabolic waste products that gradually slow down the rate of…

A: Bacteria are unicellular organisms that cannot be seen from the naked eyes. They are present in a…

Q: Solve the following problem: 34,000 bacteria/l have been measured 4 hours after inoculating a…

A: Given information Bacterial population after 4 hours of inoculation= 34,000 bacteria/l Bacterial…

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.