Q8. You are provided with the following microorganisms which have certain characteristics. State the appropriate techniques for the preservation of the following strains. (i) Aerobic bacteria, (ii) Anaerobic bacteria, (iii) Bacteria with fragile membranes
Q: Why is buffering important when preparing a growth media? 2. Explain why bacterial fermentation…
A: 1. To explain why buffering important when preparing a growth media Concept Buffer solutions are…
Q: 10. Be familiar with the differences between Gram-positive and Gram-negative bacteria.
A: Bacteria are prokaryotes. They are single-celled organisms and can have different shapes-cocci…
Q: explain these types of microbial control methods: Refrigeration and freezing , Desiccation and…
A: Microbial control:- Microbes are small living organisms which can cause a lot of problems like…
Q: Which of the following groups of bacteria require or will use oxygen for respiration i, obligate…
A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…
Q: Other than bacteria list the other 6 types of Microorganisms
A: Introduction The word microorganism is derived from two words "micro" meaning "small" (10-6) and…
Q: Find 3 supermarket products made by microorganisms with different method, namely culture, fermented…
A: Fermentation is the chemical process by which molecules such as glucose are broken down…
Q: 2. If a water sample tests negative for the presence of coliform bacteria, is it safe to drink?…
A: coliforms are the rod shaped and gram negative bacteria which ferment lactose to the acid and…
Q: egorise the microbial growth into four phases. In your own words, briefly describe eac
A: An organism that is microscopic is known as the microorganisms. These are tiny , small organisms…
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: 1.The bacteria under study thrives at the alveolar ducts in the lungs causing respiratory disease.…
A: Microbial growth is initiated if the conditions required for the microorganisms is optimum. But some…
Q: (a) Discuss the role of chromosomal islands in microbial diversiIty. (b) State three reasons why…
A: (a) Chromosomal islands are also known as genomic island. They are considered as a genome's part and…
Q: Is the Storage media in microbiology is a simple or liquid medium and what is its functional types?
A: Culture media is the substance that is involved in the growth and supports the survival of the…
Q: 3. When plotting microbial death curves, how might they look different for bactericidal versus…
A: Introduction: The growth of the microorganism is regulated under particular environmental…
Q: 6 different types of chemical disinfectantsand how they damage microbial cells. Distinguish between…
A: Chemical disinfectants are usually known as the inactivate pathogens by chemically degrading their…
Q: Summarize the terms used to characterize microbes based on they physical growth factors including...…
A:
Q: Summarize the terms used to characterize microbes based on their physical growth factors; 1. pH…
A: 1. pH Acidophiles are those microorganisms that are able to survive in extremely acidic conditions…
Q: Laboratories spend millions of dollars and person-hours to identify microbes from clinical samples.…
A: Flagella are organelles that are characterised by their function rather than their appearance. The…
Q: Outline and describe, three strategies to identify microorganisms.
A: Three most widely used methods are : PCR Microarray based identification Immunological…
Q: 1. Write four different microbial classes upon their carbon and energy sources. 2. Write 8…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
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: Microbiology Q1 - What are the sterilization tools for silver and mercury (heavy meat)? Q2 - What is…
A: The statistically complete annihilation of all germs, including the most resistant bacteria 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,…
Q: explain why the invention of solid culture media was of great importance to the development of…
A: Differential media, selective media, test media, and specified media are some of the media available…
Q: 4. Assuming the growth rate of these microbes is constant, what will the cell density of this…
A: Microbial growth is divided into four different phases namely the lag phase, the exponential (log…
Q: 1. How is UV radiation a good type of control mechanism against microbial growth? Please explain…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: 2 Gram positive pathogenic bacteria that may be classified as being facultative anaerobes?
A: Facultative anaerobes are bacteria that can grow in both the presence or absence of oxygen.In…
Q: (ii)Briefly discuss the ethical and legal implications of disposing of industrial waste in this…
A: Untreated industrial wastes are very hazardous and pollute the environment. Various abatement…
Q: Although sparse, there is still visible growth of microorganisms in Plate D which is the…
A: Inoculation is defined as the act, process, or occurrence of inoculating, specifically from one…
Q: Explain 4 approaches to preventing or limiting biofilms.
A: Biofilms are the aggregation of microbial cells present on solid surfaces.
Q: What tissues or organs do these bacteria target in the human body? Why is it to their advantage to…
A: It is required to find gram-positive and two-gram negative pathogenic bacteria that are facultative…
Q: https://courses.lumenlearning.com/microbiology/chapter/controlling-microbial-growth/ Read…
A: 1. Characteristics of microbes and infectious agents that would require handling in a BSL-3…
Q: Provide some suggestions for treating anaerobic infections bymanipulating the gas content of the…
A: Anaerobic infections are caused by the microbes which are growing in anaerobic conditions. The…
Q: Describe the five phases of a microbial growth curve observed when growing microbes are grown in…
A: The bacterial growth curve represents the number of live cells in a bacterial population over a…
Q: Microbiology, are there technologies that can help make bacterial culture and sensitivity done…
A: The typical bacterial culture and sensitivity test takes around 7 days to give result, which can…
Q: beneficial activities of microorganisms.
A: Microorganisms. Microorganisms or microbe are unicellular or multicellular microscopic prokaryotes…
Q: . Based on E.Coli & P.aeruginosa, which antibiotic would be recommended to use for both microbes &…
A: Kirby-Bauer method of antimicrobial susceptibility testing is carried out on clinical isolates in a…
Q: Please discuss the different environmental factors that influence microbial growth. What would be…
A: Microbes or microorganisms are organisms that are microscopic in size and cannot usually be seen…
Q: Out of the 5 possible oxygen requirements (Obligate aerobes, microaerophiles, etc), what…
A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…
Q: Would detection of fecal coliforms (ex E. c/oli) in meat be indicative of contamination or spoilage…
A: Pathogenic bacteria are harmful to both people and the environment. Spoilage of a food item is…
Q: 3. At which scenario of bioprocessing, a fed-batch system is recommended to be applied?
A: Bioprocessing It is a technique to produce useful products from living organisms like cell,…
Q: 1. Nitrogen-fixing bacteria reduce ammonia to nitrogen gas. true or false
A: Nitrogen is one of the major components of the bodies of living organisms. It is found in DNA and…
Q: Which of the following groups of bacteria require or will use oxygen for respiration i. obligate…
A: Bacteria are defined as unicellular prokaryotes. They can survive or live in extreme environmental…
Q: Why is it the Fluidized Bed Bioreactor is important in the biological wastewater treatment compare…
A: Fluidized bed bioreactor are specialized bioreactor in which many chemical reactions can be used in…
Q: suggest ways employed by microbes of extreme environments that enable them cope with harsh…
A: The microorganisms thriving within extreme environments are called extremophiles. Certain types of…
Q: . Explain the importance of Fluidized Bed Bioreactor in the biological wastewater treatment and why…
A: The objective of biological wastewater treatment is to make a framework wherein the consequences of…
Q: Explain how air movement and relative humidity affect the growth of microorganisms.
A: Warm air can possess more water vapor than cold air, so with the same amount of humidity, air will…
Q: Discuss the THREE (3) main stages crucial to microbial leaching of copper from a low-grade ore,…
A: Bioleaching involes microorganisms .Main copper minerals include sulfides, (CuFeS2) chalcopyrite,…
Step by step
Solved in 2 steps
- a. What oxygen requirements do your think this bacterium will have (obligate aerobe, obligate anaerobe, facultative anaerobe, aerotolerant anaerobe, or microaerophile), and why? b. You run a thioglycollate test of your isolated bacterium. Based on your response to Part A, which thioglycollate tube best represents the result you would expect for your bacterium? Explain your response. If the result you would expect is not represented, explain what the tube should look like. c. What would you expect to be the result of a catalase test of your bacterium? d. What techniques or specialized equipment, if any, would you need to grow cultures of this bacterium?Answer the following questions: 1. Define a bacterial colony. 2. What is the difference between macroscopic and microscopic appearance of bacteria? 3. State the three standard terms used to describe single colonies on agar plates. 4. State and define the three types of growth that may be seen in a broth culture. 5. State three basic shapes of bacteria. 6. State and describe the different arrangements of cocci. 7. What is the difference between true motility and Brownian motion?A microbe is only capable of growth at pH range of 8.5-10 in the presence of atmospheric levels of oxygen. Which statements are correct? Mark all that apply. A.)The microbe is likely to be a human pathogen B.)The microbe is a mesophile C.)The microbe is an obligate aerobe D.) The microbe is an alkiliphile
- Amswer the following questions: 1. What other physiological responses may have caused the diphasic growth in E. coli? 2.Describe the methods used by microbiologists in producing synchronous cultures from unsynchronized bacterial culture.Microorganisms have been described as the most chemically diverse, the most adaptable, and the most ubiquitous organisms on Earth. What other "most" descriptions could be added to this list?Answer the following questions: 1. What was the first antibiotic and what was its importance? 2. What does resistance mean? 3. Who is affected by resistance? 4. What if the resistance problem is not solved? 5. Describe the structure of the bacterium (its parts) 6. Can bacteria change? explain 7. Why do Bacteria communicate, what is the purpose? 8. Explain how a bacterium achieves its resistance. 9. What is the use given to antibiotics in production animals? 10. Is this use in animals good practice? 11. Once resistance occurs, what has the scientific community had to do? 12. Do antibiotics only affect negative bacteria? explain. 13. What are the most feared diseases due to antibiotic resistance? 14. Should antibiotics be used against viruses? explain. 15. How can we avoid antibiotic resistance?
- https://courses.lumenlearning.com/microbiology/chapter/controlling-microbial-growth/ Read this Article about Controlling Microbial Growth and answer the following questions: Which is most effective at removing microbes from a product: sanitization, degerming, or sterilization? Explain. What are two possible reasons for choosing a bacteriostatic treatment over a bactericidal one? Name at least two factors that can compromise the effectiveness of a disinfecting agent.Q2) In general, humans are free from microbes in utero. Throughout the period of growing up, a healthy individual body can maintain a balanced coexistence of microbial population. (a) Describe the primary roles of microbes in protecting and stabilizing body surface. (b) Discuss how the imbalance and instability of microbes in the body can occur.Q 1 a) The bacterial slime layer is generally made of polysaccharides (called glycocalyx) and might be irregular over the surface of cells. Whereas capsules have a unique proteinaceous structure and are uniform over the cell. True False b) Which of the following describe the reason we use differential media Allows certain microbes to grow Brings out visible differences among microorganisms based on their specific functions We use this media when we don't want some bacteria to grow in our plates None of the above is correct c) Only a minority of all microorganisms are pathogenic or cause food spoilage True False d) In an agar plate, each ----------- represents a --------------- bin the original sample. Cell, Colony Colony, Cell Cell, Generation Hour, Generation time
- 9. Is the eosin methylene blue agar (EMB) a complex or defined medium? Explain based on its composition. Is MSA a A) differential, B) selective, or C) both differential and selective media? Explain based on what kind of microorganisms it allows to grow.Microbes in our Lives 1. List several ways in which microbes affect our lives. Naming and Classifying Microorganisms 1. Recognize the system of scientific nomenclature that uses two names: a genus and a specific epithet. 2. Differentiate the major characteristics of each group of microorganisms. 3. List the three domains. A Brief History of Microbiology 1. List at least four beneficial activities of microorganisms. 2. Name two examples of biotechnology that use recombinant DNA technology and two examples that do not. 3. Explain the importance of observations made by Hooke and van Leeuwenhoek. 4. Compare spontaneous generation and biogenesis. 5. Identify the contributions to microbiology made by Needham, Spallanzani, Virchow, and Pasteur. 6. Define bacteriology, mycology, parasitology, immunology, and virology. 7. Explain the importance of microbial genetics and molecular biology.16. Enriched media boosts the growth of a particular bacterial species. a) Trueb) False