Q: structured and unstructured model of microbial growth.
A: Microbial growth refers to an increase in the number of cells rather than an increase in cell size.…
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: Imagine a sewage plant that is releasing sewage containinghigh levels of ammonia and phosphate and…
A: Sewage refers to wastewater, which is produced due domestic or industries. It contains a variety…
Q: Bacterial biofilm may link to
A: Answer: Biofilms are the complex structure composed by the various microbes such as bacteria , fungi…
Q: explain the factors that influence the growth of microorganisms
A: There are various factors that influences growth of microorganisms.
Q: Describe why a microbial mat has green, reddish-pink, and black layers.
A: Microbiology is the branch of science that deals with the study of microorganisms that are too small…
Q: Microbial growth is measured by what parameter?(a) Increased cell size(b) Increased size of cellular…
A: The term microbial growth can be defined as the growth of the population or an increment in the…
Q: Discuss the importance of some bacteria to undergo starvation during stationary phase and importance…
A: The importance of some bacteria to undergo starvation during stationary phase is that : In…
Q: Describe the term resistance and biofilm related to microbiology.
A: The ecosystem is composed of species such as plants, animals, and microbes. Microorganisms, which…
Q: List and define five terms used to express a microbe’s optimal growth temperature
A: To express temperature adaptation the organisms can be described according to their optimal growth…
Q: Explain how detergents, soaps, and heavy metals can beemployed in clinical, commercial, and…
A: Soaps, detergents, and various cleaning agents are used in the household, clinical, and commercial…
Q: What factors influence the appearance of microbial colony
A: Microbial colony can be defined as the visible mass of microbes like fungi ,bacteria etc on a…
Q: Compare and contrast the methods used to control microbial growth in daily life, healthcare…
A: Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and…
Q: Identify two factors( in detail)that make biofilms more tolerant to antimicrobials including their…
A: Biofilms are a collective of one or more types of microorganisms that can grow on many different…
Q: Define microbial growth. Outline the effects of temperature, pH, osmotic pressure and oxygen…
A: Microbial growth can be defined as the increase in the cell size of a single micro-organism. It can…
Q: Explain the purpose and phase where cells lose flagella and motility in biofilm formation, and why…
A: There are several steps associated with the biofilm formation. The first step includes adherence of…
Q: Explain 2 factors that influence microbial growth.
A: The growth of microorganisms are very much dependent on different factors that controls the growth…
Q: Discuss biofilms with regard to their formation, unique properties, and significance to the…
A: Biofilms as the name suggests are films of living organisms ( microbes ). They are highly…
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: Growth of microbes in a solid media is identified by the formation of? a) Pellicle at the top of…
A: A culture medium or growth medium is may be liquid, solid, or semi-solid designed to promote growth…
Q: List 5 temperature requirements for bacterial growth. Explain the temperature ranges and where do…
A: Ans: Bacterial growth: The growth of animalcules or microbe happen at different optimum conditions.
Q: Define differential media and selective media.
A: A growth medium or culture medium can be defined as the solid, liquid, or semi-solid substance…
Q: Describe a microbial biofilm. Discuss why it is likely that a biofilm contains bacteria with…
A: The unicellular, microscopic organisms that cannot be visualized by the naked eye are known as…
Q: Describe several physical and chemical requirements for microbial growth, and explain what factors…
A: Physical requirements for microbial growth: Temperature: For pyscrophilic organisms = around 00…
Q: Briefly outline the mechanism leading to the occurrence of bioluminescence by these microbes.
A: Answer: BIOLUMINESCENCE : These are living organisms (microbes or bacteria) which produces and…
Q: Discuss briefly the phases of Microbial Growth Curve and why it is useful to plot the microbial…
A: For microbial growth many factors are important such as nutrients, temperature, pH, moisture and…
Q: Give the factors that influence the appearance of microbial colony.
A: An group of microbes that can be seen and that grows on the surface of a solid medium or in a solid…
Q: Why does saliva not serve as a good microbialgrowth medium?
A: Saliva is the watery, frothy substance that is produced in the mouths of some animals, including…
Q: List at least four beneficial activities of microorganisms.
A: Microbes are unicellular or multicellular prokaryotes or eukaryotes that are present on all kinds of…
Q: Describe methods used to grow microbes anaerobically and under high CO2 conditions
A: An anaerobic organism does not require oxygen for its growth. It may react negatively or may even…
Q: The followings list the false statements about microbial growth curves EXCEPT Log phase indicates…
A: Option (b)microbes grow exponentially when they are in the stationary phase.
Q: How is it possible for both aerobes and obligate anaerobes tocoexist in the same biofilm?
A: Biofilms are masses of one or more types of microorganisms that irreversibly attach and grow on many…
Q: There are various environmental factors that can influence microbial growth and reactions. These…
A: The most necessary physical factors are pH, temperature, oxygen, pressure, and salinity. pH measures…
Q: Identify external sources of energy that are used by microbes, as well as energy carriers and other…
A: Carbon, energy, and electrons are the three essential requirements for the growth of all microbes.…
Q: Explain the formation of biofilm.
A: Certain microorganisms are capable of producing extracellular polymers that forms a matrix to which…
Q: During the ____________________ phase of microbial population growth, the rate of cell division…
A: Bacteria are prokaryotic creatures that most typically reproduce via binary fission, an asexual…
Q: How is UV radiation a good type of control mechanism against microbial growth? Explain what happens…
A: UV-C is most commonly used to kill microbes. However UV of different wavelength can show different…
Q: MacConkey lactose agar is a medium that kills all microbes except for gram-negative bacteria, and it…
A: Agar is a galactose-based heterogenous polysaccharide obtained from seaweed(red algae). It is…
Q: List the microbial genera that are easily cultured from soil
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: Explain what features of endospores make them so resistant to microbial control, and how sterilizing…
A: Controlling microbial growth entails inhibiting or preventing the growth of microorganisms. This…
List environmental factors that influence microbial growth with a particular emphasis on oxygen
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- Define microbial growth. Outline the effects of temperature, pH, osmotic pressure and oxygen onmicrobial growth.Explain 2 factors that influence microbial growth.Give a brief but critical discussion about microbial growth in natural environments and how it differs from the laboratory culturing of micro-organisms.
- Describe methods used to grow microbes anaerobically and under high CO2 conditionsCompare and contrast the action of alcohols, halogens, and oxidizing agents in controlling microbial growth.Which has a greater impact on the survival of an organism, temperatures above its maximum temperature or temperatures below its minimum temperature? Explain why and how this relates to typical methods used to control microbial growth.
- Describe the five phases of a microbial growth curve observed when growing microbes are grown in broth culture and discuss the causes of eachIdentify external sources of energy that are used by microbes, as well as energy carriers and other immediately available sources of energy that that microbial cells use for growth processes.Categorise the microbial growth into four phases. In your own words, briefly describe each of them
- List the microbial genera that are easily cultured from soilHow would you classify each microbial sample (A, B & C) based upon the growth seen in each environment? (ex. Psychrophile)Why do we study how to control microbial growth? Give concrete examples wherein our understanding of microbial growth is applied.