screening of microorganisms includes mcq screening of microorganisms includes mcq

are not subject to the Creative Commons license and may not be reproduced without the prior and express written View Answer, 49. a) Cephaleuros microscopic with a fried egg shape. View Answer, 24. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. Clarification: The Antibiotic producers show the zone of inhibition. a. Streptococcus pyogens b. 37) Which of the following is the selective media used for the cultivation and isolation of. a) Lactobacillus The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . b) aerobic cells Crowded plate technique the virus must be able to lyse red blood cells. Creative Commons Attribution License 4. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. The reason they are called microorganisms is that you can only see them when you use a microscope. Clarification: Hanging drop technique is used for motility testing of bacteria. 2011-2023 Sanfoundry. The screening is isolation and detection of microorganisms of interest. View Answer, 15. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. Microbiology is the study of living organisms that are not visible to the naked eyes. All Rights Reserved. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. 14. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. a) Growth Factor producers b) 8.0 10.0 View Answer, 18. c) Nitrosomonas europaea C) is used to prevent growth of halophiles. A) fermentation, downstream processing, removal of waste, inoculation. As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. B. Auxanographic technique C. Enrichment Culture technique C. The optimum temperature for the growth of an organism must be above 50C Which of the following method can be used to determine the number of bacteria quantitatively? d) saprophytic View Answer, 8. d) Rose Bengal Agar plate 3. 4. c) DNA polymerase I When examined he said the cough first started about a month ago, he said no other symptoms appeared in the first week, he complained about the loss of appetite due to which he lost some of his body weight. 6. D. Rose Bengal Agar plate. Our members have a unique depth and breadth of knowledge about the discipline. d) Antoni van Leeuwenhoek a) above 1 percent Which scientist proposed adding a kingdom for protists? The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. d) Multiple fission a) glycerol residues 6. D) removal of waste, inoculation, fermentation, downstream processing. Sugar fermentation test: Bacteria is grown in a sugar media. B) False, Yeast cells prefer aerobic conditions to multiply in number. In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? a) Nitrospina gracilis Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. 10. 2. 4. b) Streptomyces olivaceus 3.0 4.6 d) Malaria Answer: A Screening includes primary screening and secondary screening. b) coliforms Which of the following plate is used to detect and isolate organic acid producers? The section contains questions and answers on diseases caused by staphylococcus, streptococcus, corynebacterium, aerobic and anaerobic gram, viruses containing single and double stranded dna. B. B) False, When in doubt, throw it out. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. The Microbiology Society has a vision and mission around which we base our strategy. b) Atrichous bacteria. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. Which is the secondary stage? B) sulfites. d) Coliforms c) The optimum temperature for the growth of an organism must be above 50C Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. d) Pedoviridae b) Auxanographic technique a) Eremothecium ashbyi You can also download the PDF of Microbiology MCQs by applying below. View Answer, 19. Chapter 4: Clinical Virology MCQs. The "flash method" or "high temperature short time" method exposes fluids to Clarification: Adenoviruses cause respiratory infections. Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. d) bacterial infection The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. 3. In an ecosystem, herbivores represent. d) Physical assay a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Potato Dextrose Agar plate What does a viral DNA becomes after being associated with the bacterial chromosome? View Answer, 10. It should have a fast rate of kill of micro-organisms. Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. c) An objective with minimum numerical aperture a) chemical compounds The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. The respiratory chain of bacteria is associated with the _____________ b) Study of animals and their family B) mass, controlled culture of microbes to synthesize products. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. A) True The Gram staining is one of the most crucial staining techniques in microbiology. b) Potato Dextrose Agar plate Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . Prokaryotes can be found everywhere on our planet, even in the most extreme environments. Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. View Answer, 16. b) Ferdinand Cohn b) Treponema pallidum B. View Answer, 11. What are the methods of isolating the pure culture of microorganisms? Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ b) Candida utilis A. American Type Culture Collection B) plasmolyzes bacteria and fungi. b) Antibiotic producers Which of the following method is not used in isolation and screening of desired microorganisms? d) intercalating agents Question 6. You may refer to the lesson text whenever you are unsure of the answer. View Answer, 12. then you must include on every digital page view the following attribution: Use the information below to generate a citation. d) American Type Classifier and Collection Which of the following is NOT a criterion for the choice of an organism? 6. It will immensely help anyone trying to crack an exam or an interview. a) Crowded plate technique c) Crick b) mutualistic d) Eyepiece lens The bacterium Staphylococcus aureus is which type of bacteria? A. c) fecal streptococci c) hydrophobic barrier c) Mycobacterium tuberculosis 14. What is the pH range of Bromophenol blue? d) Nitrosovibrio tenuis Each of the following organisms is an important cause of urinary tract infections except: a. Klebsiella pneumoniae b. Escherichia coli c. Bacteriodes fragilis d. Proteus mirabilis; A 30-year woman has non-bloody diarrhea for the past 14 hours. The screening is isolation and detection of microorganisms of interest. View Answer, 33. a) True b) The examination of the infection sites, c) They are prokaryotes in cellular organization. Answer: B Through primary screening only few or many microorganism that produce a industrially . These are non-enveloped viruses with a double-stranded DNA genome. b) Biological assay 3. Which of the following is used in electron microscope? Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. 3. b) below 1 percent 2. a) Styloviridae D. 6.4 8.0. c) neither aerobic and anaerobic cells B. Identify bacteriophage. Answer: D (1) Screen organic acid-producing microbes. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? 12. d) Fungi b) Automatic Type Counter & Classifier d) Prototheca Which of the following types of microorganisms is photosynthetic? View Answer, 5. It is done by using paper, thin layer or other chromatographic techniques. Which one of the following is called as the 'brewers yeast'. Crowded plate technique Full-form of ATCC is _________ Allow discarding of many valueless microbes. Screens are made of long, closely spaced, narrow metal bars. 5. Want to cite, share, or modify this book? 10. Primary methods to prevent food spoilage do NOT include Bioremediation of polluants utilizing biodegradation abilities of microorganisms include the natural attenuation, although it may be enhanced by engineered techniques, either by addition of selected microorganisms (bioaugmentation) or by biostimulation, where nutrients are added. The section contains MCQs on selective methods, pure cultures and cultural characteristics. c) chitin 5. c) Mumps The section contains multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include It should be active and stable and environmentally safe. C) alcohol. [2] The term for organisms that retain the . Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. b) irregular Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. Microbes are certainly ideal for biotechnology. View Answer, 4. D. Indicator dye technique. 38) All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, b) Used for the culture of common fastidious bacteria, c) It is used for the culture of hemolytic bacteria. B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. a) Neisseria gonorrhoeae. d) glucose residues 1. Q.1. It is a non-profit organization and a key resource for medical research. c) nucleotides View Answer, 26. View Answer, 12. View Answer, 2. Who is known as the father of Microbiology? View Answer, 39. Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . a) Crowded plate technique Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. B) False, Pasteurization is used to sterilize milk. a) elongated b) vitamins Primary Screening of Microorganisms: Primary screening may be defined as detection and isolation of the desired microorganism based on its qualitative ability to produce the desired product like antibiotic or amino acid or an enzyme etc. d) Study of microscope How do you isolate microorganisms in the air? 11. a) Treponema The process is repeated several times until the requirement is met. Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. C. American Type Counter Collection C. Enrichment Culture technique Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. What is Microbiology? Name three reserve materials synthesized by microorganisms and note which microbial groups They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. Answer: D The organic acid producers produce acid which changes the colour of media and is thus detected easily. B. Bacteria or other organisms used in AST testing should be from a fresh culture, ii) the composition and preparation of the agar and broth media used (e.g. 5. Q. Q.1: Screening of microorganisms includes . D. Indicator dye technique. It is important to find and resolve the source of the contamination. 6.8 - 7.2 b. 5. D. The organism must be able to grow in an easily available nutrient medium. a) Micrococci c) Study of organisms that are not visible to naked eyes Protozoa that eat other organisms are known as _______________ milk, meat, green vegetables, fruits, etc.) View Answer, 14. b) False The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. 2011-2023 Sanfoundry. Which isolation technique is most effective? You will get a gown or sheet as a cover. Which of the following method is not used in isolation and screening of desired microorganisms? Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? Indeed, until Anton von Leeuwenhoek invented . 4. Self-Assessment Quiz. d) All of the mentioned Which of the following method is not used in isolation and screening of desired microorganisms? b) hydrophilic barrier chp 25 microbiology 211 mcq. View Answer, 7. c) Enrichment Culture technique A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. uses 50 grams of glucose in a 500ml solution. A. Here are 1000 MCQs on Microbiology (Chapterwise), The Characterization, Classification and Identification of Microorganisms, The Microscopic Examination of Microorganisms, The Morphology and Fine Structure of Bacteria, Pure Cultures and Cultural Characteristics, Microbial Metabolism : Utilization of Energy and Biosynthesis, The Control of Microorganisms by Physical & Chemical Agents, Antibiotics and Other Chemotherapeutic Agents, Microbiology of Soil & Aquatic Microbiology, Microbiology of Domestic Water and Wastewater, Microbiology of Food, Industrial Microbiology & Bacterial Genetics, Microbial Flora of the Healthy Human Host, Host-Microbe Interactions : The Process of Infection, Microbial Agents of Disease : Bacteria & Viruses, Microbial Agents of Disease : Fungi and Protozoa, Microbiology MCQ: Major Characteristics of Microorganisms, Microbiology MCQ: Microbial Classification, Microbiology MCQ: Transmission Electron Microscope and Scanning Electron Microscope, Microbiology MCQ: The 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