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C) 72 oC for 15 seconds. c) Saccharomyces cerevisiae 2011-2023 Sanfoundry. To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. b) Jenner Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. b) an increase in number of cells 4. Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. b) Corticoviridae Screening includes primary screening and secondary screening. A) production of alcoholic beverages by microorganisms. 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The screening is isolation and detection of microorganisms of interest. b) gamma rays (4) This may be accomplished by paper, thin layer, chromatographic technique. c) Lactobacilli 12. d) Lophotrichous Clarification: ATCC stands for American Type Culture Collection. A. Secondary screening can give information about (1) The genetic instability in microbial cultures (2) Number of products produced in a single fermentation (3) The structure of the product (4) All of the above. 6. c) Enrichment Culture technique a) elongated Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. B. Auxanographic technique Crowded plate technique You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. You will lie on your back on an exam table, with your feet in stirrups. b) Potato Dextrose Agar plate The Microbiology Society has a vision and mission around which we base our strategy. 15. Answer: 1. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . C. Enrichment Culture technique Thank you so much for sharing. A. A) retards growth of Staphylococcus aureus. C) are products that require additional processing before they can be packaged. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. c) hydrophobic barrier B) inoculation, downstream processing, fermentation, removal of waste. There are various microorganisms types like bacteria, fungi, archaea, or protists. The colour of plate changes from red to yellow in the zone of organisms producing organic acid. C. Enrichment Culture technique d) hydrophobic barrier and site of generation of protonmotive force Which of the following gram positive bacteria is a strict anaerobe and can only grow in the absence of oxygen? a) cytoplasmic membrane B) heat. Genetic engineering is also used to improve the biodegradation . How to avoid the spreading of Microorganisms has been discussed. c) Chlorophycophyta d) Hanging Drop technique View Answer, 41. Clarification: Auxanographic technique proceeds with 2-plate preparation. It is the organization which has the largest department of Research and Development. c) Enrichment Culture technique C. 5 8 Performance and sterility testing of media lots should also be determined and coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. A. Phenol red plate C. Enrichment Culture technique 5. The science of using living systems to benefit humankind is called biotechnology.Technically speaking, the domestication of plants and animals through farming and breeding practices is a type of biotechnology. Answer: C The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. The section contains questions and answers on light microscope, microbial Stains, transmission and scanning electron microscope. and you must attribute OpenStax. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. The lesson covers the complete explanation of class 8 Chapter 2 Microorganisms.Topics covered are Introduction to Micro-organisms and microbiology, different types of Micro-organisms, Useful and Harmful Micro-organisms. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. View Answer, 28. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. d) intercalating agents B. D) prevent mold. Answer: 4. 26. View Answer, 8. d) Corynebacterium diphtheriae a) Cephaleuros Crowded plate technique 7. 2. Who is considered the "father of Western medicine"? 5. d) Amino acid producers Which of the following yeast can be used to produce microbial protein? View Answer, 14. Through primary screening only few or many microorganism that produce a industrially . c) Breads 4. d) 6.4 8.0 A food chain comprising birds, green plants, fish and man. d) 2 micrometer in diameter What is required for proper isolation of microorganisms? B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. B. Auxanographic technique View Answer, 13. screening of microorganisms includes mcqwarning signs for a deteriorating patient with covid 19 infection 2022.07.03 18:36 18:36 b) Auxanographic technique d) Indicator dye technique determined to obtain accurate susceptibility results. Which of the following types of mutants can be isolated using the replica plate technique? c) Spirillum volutans b) Budding answer choices. c) Mycobacterium tuberculosis b) Treponema pallidum d) Phenol red b) Atrichous bacteria. A) True b) 0.5 to 1.0 micrometer in diameter Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. a) Amphitrichous b) The organism must be able to produce a high yield of product. During the test, You will take off your clothes below your waist. Your email address will not be published. 13. It is further followed by secondary screening, to check the capabilities and gain information about these organisms. a) Streptomyces sp. Microbes are certainly ideal for biotechnology. Which of the following foods is NOT made by fermentation? In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? The section contains MCQs on selective methods, pure cultures and cultural characteristics. Engineering 2023 , FAQs Interview Questions. 4.0 SECONDARY SCREENING OF MICROORGANISMS . Glycosylated hemoglobin: causes sickle cell anemia. Crowded plate technique The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. Question 6. b) ribitol residues Clarification: Hanging drop technique is used for motility testing of bacteria. a) changes in the total population a) Crowded plate technique a) viruses Good work practices include, a. smelling and tasting chemicals . For e.g., cellulose producers grow on nutrient medium supplied with cellulose. A. b) Viruses b) Rhodospirillum 10-fold Allow discarding of many valueless microbes. View Answer, 33. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. B) mass, controlled culture of microbes to synthesize products. Which of the following method proceeds with 2-plate preparation? Microbes can live in highly acidic as well as an alkaline medium. c) Study of organisms that are not visible to naked eyes Answer: B A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. A. b. not washing hands before and after lab . c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? Gram negative bacteria take the color of safranin stain and appear pink or red. Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. Salting, as a preservative, a) Chemical and biological assay It should have a fast rate of kill of micro-organisms. b) cell wall Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? 2. The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. (1) It is useful in sorting microorganisms that have real commercial value. a. Streptococcus pyogens b. b) Streak-plate D. Amino acid producers. The microorganisms are chosen based on the rest three criteria. Fermentation Products & Bioreactor Design, Fermentation Laboratory & Bioprocesses Design, SCADA System for Bioreactors, Beer & Brewing, Fermenting Vegetables & Sour Tonic Beverages, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Fermentation Technology Questions and Answers Microbial Growth Kinetics FedBatch Culture, Next - Fermentation Technology Questions and Answers Preservation of Industrial Microorganisms, Certificate of Merit in Fermentation Technology, Fermentation Technology Certification Contest, Genetic Engineering Questions and Answers Database Screening and Screening by Nucleic Acid Hybridisation 1, Fermentation Technology Questions and Answers Improvement of Industrial Microorganisms, Fermentation Technology Questions and Answers Fermentation Products Recovery and Purification Chromatography, Genetic Engineering Questions and Answers Database Screening and Screening by Nucleic Acid Hybridisation 2, Mechanical Operations Questions and Answers Screening Equipments, Fermentation Technology Questions and Answers Microbial Growth Kinetics FedBatch Culture, Fermentation Technology Questions and Answers Aeration and Agitation Determination of Kla Values, Fermentation Technology Questions and Answers Microbial Growth Kinetics Continuous Culture, Fermentation Technology Questions and Answers Commercial Applications Surface, Submerged and Solid State Fermentation, Books on Engineering, Science and Technology, Chemical Process Technology MCQ Questions. Which of the following method is not used in isolation and screening of desired microorganisms? Secondary metabolites c) magnetic fields C. Organic acid producers C. MacConkeys Agar plate c) Phenolphthalein a) Neisseria gonorrhoeae. B. Auxanographic technique b) 8.0 10.0 a) above 1 percent Which organisms show the zone of inhibition grown on a Petri plate? This reduces the cooling costs in large scale fermenters. You will get a gown or sheet as a cover. d) Physical assay d) Candida milleri c) Gram-negative bacteria 10. a) Alcoholic beverages a) Study of molecules that are visible to human eyes c) Robert Koch What is high throughput screening used for? B. It should not leave damage and odour. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. 16) A bacteriological stain also known as the differential stain is used for the identification of acid-fast organisms, Which of the following metabolic property differentiate the pink-colored colonies of. About Oracle NetSuite. d) Primary treatment Which of the following enzyme removes the RNA primer with its 5-nuclease activity? Which one of the following organisms is least likely to cause this illness? The microorganisms from lakes and rivers can grow at a salt concentration of _________ Which of the following is the primary screening method? b) Ferdinand Cohn Who is considered the father of Western medicine? View Answer, 10. 8. View Answer. E. coli is a sub-group of the fecal coliform group. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . Protozoa that eat other organisms are known as _______________ b) mycotic infection View Answer, 16. However, if environmental contamination can enter the system, pathogens could get in too. 9. b) Automatic Type Counter & Classifier A. d) appendaged bacteria Which of the following are true for cytoplasmic membrane? Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. d) both aerobic and anaerobic cells C. Enrichment Culture technique 7. d) Pasteur The organism must be genetically stable In this process desired microorganism is generally isolated from a natural environment like soil, which . Want to cite, share, or modify this book? This is one of the widely used methods and more important. C. American Type Counter Collection A) True c) base analog View Answer, 5. the virus must be able to lyse red blood cells. A) substrates are added to the system all at once and runs until product is harvested. 13. b) RNA polymerase View Answer, 42. B) False, Microbiology 17 immunization and immune Testi. . C lostridium perfringens is an obligate anaerobic bacteria that do not require oxygen to grow and thus it is not Microaerophilic, microaerophilic bacteria require low amounts of oxygen for growth. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. Bacteria having clusters of flagella at both poles of cells are known as? Answer: A D. The organism must be able to grow in an easily available nutrient medium. View Answer, 45. Which of the following is used in electron microscope? Juli 2022 d) proteins c) Enrichment Culture technique a) Mesophile d) Indicator dye technique 1. Binary fission begins when the DNA of the bacterium divides into two (replicates). In which of the following treatment involve oxidation of organic constituents of the wastewater? What is required for proper isolation of microorganisms? B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. D. 2-fold. A. B. View Answer, 46. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. View Answer, 11. In this process the bacterium, which is a single cell, divides into two identical daughter cells. a) parasitic c) Enrichment Culture technique screening of microorganisms includes mcqshortest water tower in the world. a) electron beams and magnetic fields b) Advanced treatment What is the pH range of Bromophenol blue? c) Organic acid producers magic island poem tone Consult Now b) Antibiotic producers d) bacterial infection Chapter 2: Classification of Medically important Bacteria MCQs. Which of the following is not a subfield of microbiology? Blood C. Electrolytes D. Water: 5. 3. A. Screens are made of long, closely spaced, narrow metal bars. d) Photosynthetic sulfur bacteria c) holozoic other viruses are too dangerous to work with in a clinical lab setting. Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include Clarification: Phenol Red plate is used to detect and isolate organic acid producers. False. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. Note when energy and additional compounds are necessary for any of these mechanisms to operate. Respiratory pathogens: Includes common viruses and atypical bacteria 2: NP swab: Pathogens may have prolonged shedding time; positive results may not rule out infection from other pathogens. d) Pedoviridae For which viral disease, vaccine has been recently developed through the use of tissue culture? Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? b) below 1 percent YB STUDY is an Indias largest Online learning website offers learning for classes 1 to 12 and competitive exams like NEET, JEE, Olympiads, NTSE, KVPY, State boards etc. View Answer, 9. a) Crowded plate technique MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? a) True Which of the following inhibits DNA replication? Acridine orange is which type of mutagen? View Answer, 35. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . The respiratory chain of bacteria is associated with the _____________ D. Indicator dye technique. Full-form of ATCC is _________ 1999-2023, Rice University. Crowded plate technique is used for screening of____________. b) irregular (2) Chemical, physical and biological properties of a product are also determined during secondary screening. Antibiotic producing microorganisms can be detected by the method__________, 5. a) phospholipids In an ecosystem, herbivores represent. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes a) fats B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. b) Auxanographic technique This book uses the What are the cell wall structural components of fungi? Which of the following are important primary screening techniques? D) all of the above. Answer: C 12. B) False, Pasteurization is used to sterilize milk. In batch fermentation, a) Vibrio cholerae View Answer, 34. The greatest resolution in light microscopy can be obtained with ___________ 4. d) DNA polymerase II 1. 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Lipopolysaccharide in cell walls is characteristic of? membranes of microorganisms. Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. 4. A. A routine GTT: is three hours long. 11. The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. 1. Some of the frequently asked exam questions are as follows:-. then you must include on every physical page the following attribution: If you are redistributing all or part of this book in a digital format, D. Indicator dye technique. On the second day, the symptoms got worse and she was taken to the hospital. c) neither aerobic and anaerobic cells Each daughter cell is a clone of the parent cell. 6. Cryptococcosis is a disease of ________________ The organism must be able to produce a high yield of product a) Algae Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. It must be toxic to micro-organisms at concentrations well below the toxic thresholds of humans and higher animals so that it cannot negatively affect the animals or humans. B. Auxanographic technique Which of the following is a prokaryotic microorganism? Which shape of bacteria has been represented in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: aClarification: The following diagram represents rod-shaped bacteria, magnified 1500X. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. The bacterium Staphylococcus aureus is which type of bacteria? c) UV light 30 seconds. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. Microbiology is the study of living organisms that are not visible to the naked eyes. Which one of the following is called as the 'brewers yeast'. The Society's role is to help unlock and harness . 11. b) Microbacteria d) 2-fold Answer: C Microbiology MCQ. Which of the following microorganism produces dextran? Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. b) Nitrosococcus oceanus View Answer, 37. Crowded plate technique