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.

Q: Describe the mechanisms microbes use to maintain an internal neutral pH. Explain how extreme pH…

A: pH means the potential of hydrogen ions in the solution. It is measured on logarithmic that…

Q: Explain why, to the best of our knowledge, most microorganisms resist culturing in the laboratory

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: Discuss why microorganism presents in the nature environment has a longer lag phase and shorter…

A: The microorganisms present in the environment are continually replicating and utilizing the…

Q: Bacterial biofilm may link to

A: Answer: Biofilms are the complex structure composed by the various microbes such as bacteria , fungi…

Q: Drying is an effective antimicrobial strategy because:(a) It oxidizes cellular macromolecules(b) It…

A: Answer is b.) It limits the amount of water available to microbes.

Q: llustrate the microbial growth curve and label completely Identify what part of the curve where the…

A: Bacteria are single-celled organisms. They multiply through simple cell division, and their…

Q: In the laboratory, autoclaving is required to prepare media for the growth of What type of method of…

A: The most effective method by which we sterilize the laboratory instruments is known as autoclaving.

Q: Describe the range of temperatures a microbe can function within.

A: Temperature is very a crucial abiotic parameter for all the living organisms. In case of microbes,…

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 the mechanism of action of several of the physical and chemical agents employed to control…

A: Microbes such as bacteria, viruses, worms may act as nuisance causing various diseases in plants,…

Q: Identify two factors that make biofilms more tolerant to antimicrobials and make sure to include…

A: Two factors that make biofilms more tolerant to anti-microbial and make sure to include their mode…

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: 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: when heat treatment is used as to contril microbial growth, what is the immediate impact of this…

A: The process of killing microbes or preventing their growth is called as sterilization. Sterilization…

Q: Why are extended periods of exponential microbialgrowth in nature rare and often slower than…

A: Microbial growth is the proliferation of the microbe into genetically identical daughter cells, by…

Q: Write down two differences between bioaccumulation and Efflux pump mediated heavy metal removal by…

A: Metals that are relatively dense are heavy metals and even the presence of the slightest…

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: a) Microbial products can be classified in three major categories which related to the microorganism…

A: Microbial metabolism defines all the internal bio-chemical pathways, through which microbes obtain…

Q: How is microbial growth directly dependent on temperature?

A: Microbes are minute, unicellular/multicellular, prokaryotic living organisms that cannot be seen…

Q: Describe how each of the following physical factors affect microbial growth and aid in…

A: Microbial growth It is defined as an enhancement in the number of cells of microbes. there are…

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: Name 2 indirect methods for measuring microbial growth and describe how each is performed. a. i.…

A: Two indirect methods for measuring microbial growth are :  1. Turbidimetric method 2. Standard plate…

Q: A. Osmotic Pressure - Results (see link "Effect of Osmotic Pressure on Microbial Growth") Using…

A: Osmotic Pressure can be defined as the minimum pressure that needs to be applied to a solution to…

Q: Compare and contrast moist and dry heat methods of microbe control and give 2 examples of each.

A: The growth of microbes in an inanimate object can lead to the contamination of the particular…

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: placing bacteria at ultracold temperatures is as effective at killing microbes as the use of dry…

A: true

Q: Microbes are exposed to a wide variety of environmental factors that affect growth and survival. By…

A: Microbes can withstand various kinds of environmental stress. Their ability to survive under…

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: Propose a confirmatory procedure that will determine if the microbial growth recovered from canned…

A: A microbe is a living entity that is so tiny that it cannot be seen with the naked eye. Microbiology…

Q: Describe the five phases of a microbial growth curve observed when microbes are grown in a batch…

A: Introduction: Bacteria is unicellular prokaryotic organism that can survive in any kind of…

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: determination of microbial motility, why do you think the microorganisms are ubiquitous?

A: Solution : The motility test is used to determine whether an organism is motile or non-motile.…

Q: What is the optimum growth temperature for most human pathogens? Explain.

A: Bacterial growth is the division of one bacterium into two daughter cells in a process called binary…

Q: Would all microorganisms exhibit the same bacterial growth curve? Why?

A: The bacterial growth curve is a closed curve, it is typical in nature for all microorganisms. All…

Q: How is UV radiation a good type of control mechanism against microbial growth? Please explain what…

A: UV radiation is a kind of non-ionizing radiation released by the sun and other manmade sources.…

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: What are common, everyday examples that involve the following microbes: Psycrotroph, Mesophile,…

A: Psychrotrophs are cold-tolerant bacteria that have the ability to grow at low temperatures.…

Q: Explain why, to the best of your knowledge, most microorganisms resist culturing in the laboratory.

A: Microorganisms are minute, unicellular living beings that are undetectable to the unaided eye. They…

Q: Give two reasons for why heat fixing is used?  Adherence of bacterial cells to the slide…

A: Haet fixing is the procedure in gram staining of the bacteria. This has to be done so that the…

Q: In which growth phase are microorganisms most sensitive to antimicrobial agents? Why?

A: Bacterial growth means that bacteria divides and result in the formation of daughter cells.  There…

Q: Write a note on the measurement of growth of microorganisms, factors influence microbial growth and…

A: Microbial growth can be defined as the growth of a population or an increase in the number of cells,…

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: In simpler terms explain Lag, Log, Stationary, and Death Phase in the Microbial Growth Curve?

A: Bacterial growth: - Increase in the number of cells. - Bacterial growth in a closed system (Batch…

Q: List 5 other methods of sterilization and describe the principle/s and when each method is used.

A: (Please note that, you provided more than one question, I can only answer one question at a time,…

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."