Which of the following include the correct order of phases of a typical bacterial growth curve? log, lag, stationary, decline/death lag, log, stationary/decline, death lag, log, stationary, decline/death log, lag, decline/stationary, death

Q: Pathogen population size correlates with the severity of an infection. What is the most inexpensive,…

A: To quantify bacteria, we can use methods like:Plate Counting (CFU): Dilute and plate samples, count…

Q: Explain the graph below. Which group likely had more substrates (sugar and nitrogen)? Describe the…

A: Yeast is a single-cell organism called Saccharomyces cerevisiae, which needs nourishment, warmth,…

Q: Time Time Time The growth of Lemna polyrhiza when cultured alone. The growth of Lemna gibba when…

A: L.gibba produce allelopathic chemical Better intraspecific competitor is L. polyrhiza. When two…

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: 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: medium that inhibits the growth of Gram positive bacteria allowing Gram negative ones to grow and in…

A: Culture medium can be defined as a gel or liquid; which are designed to support the growth of…

Q: If  a flask is inoculate with 10 E. coli cells. After 6 hours you now have 200,000 cells. determine…

A: Bacteria shows exponential growth curve. The growth of the bacteria can be calculated by using the…

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: 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: 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: In which phase would you find the highest resource to bacterial cell ratio?   Pick one…

A: Bacterial growth curve The bacterial growth curve defines the progress(growth) of bacterial colonies…

Q: Bacteria can grow under a variety of conditions but also have growth preferences. Bacteria that…

A: The need for oxygen may be used to categorize different types of microorganisms. The way that…

Q: List and describe the phases of the growth curve of a population of bacteria.  Explain how a…

A: Bacteria are the minute organism that is widespread everywhere. They are present in the air, water,…

Q: Compare and contrast the four phases of growth in a bacterial growth curve.

A: Microbes or microorganisms are visible under the instrument named microscope. Various organisms like…

Q: If an organism grows as a mold at lower temperatures and grows as a yeast at higher temperat this…

A: Introduction: Mold or mould is the structures of certain fungi can form. Yeasts are single-celled,…

Q: Explain the changes in the amount of nitrate and carbon dioxide in the graph below. Guide questions:…

A: Nitrogen cycle depicts the biochemical changes that occur where nitrogen is converted to various…

Q: A bloom of dinoflagellates is discovered in Tampa Bay. Sampling on Thursday morning indicates an…

A: The above given question talks about the exponential growth of the dinoflagellates. Exponential…

Q: Enter points on the axes and graph the probable results for anacidophile, a neutrophile, and an…

A: Microorganisms growing optimally in the ph of less than 5.5, are known as Acidophiles. For example…

Q: What factors can cause a lag phase in a bacterial growth curve?

A: The bacterial growth curve represents the number of live cells in a bacterial population over a…

Q: If a bacterium has a generation time of 30 minutes, and you start with 100 cells at time 0, how many…

A: Given Values; Generation time = 30 minutes Initial Number of cells = 100

Q: What is believed to be the concentration of bacteria in soil? 109-1010 cells/g dry weight 105-106…

A: Introduction Bacteria are the unicellular living cells/organisms belonging to the domain prokaryote.…

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: A. Bacterial Growth Curve Categorization. Drag and drop the microbial culture plates on the column…

A: Bacteria are prokaryotic organisms that reproduce by asexual reproduction. A single bacteria can…

Q: L. polyrhiza or L. gibba: Which species is the better intraspecific competitor? Time Time Time The…

A: Better intraspecific competitor according to given graph of cultures.

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: For long-term storage of microbes that will be may be revived and grown later, what temperatures are…

A: The underlying principle of long term preservation is to keep microorganisms in a dormant state,…

Population Growth

R and K Selection

R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.