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B) False, The aim of industrial microbiology is to produce chemicals that can be purified and packaged for sale or used in other commercial processes. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Answer: B View Answer, 9. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. It is colourless at pH 8.0 and becomes red at pH above 10.0. c. confining long hair and loose clothing . a) Watson Glycolysis can occur in ___________ this would be absolutely amazing. A test tube contains 9ml distilled water. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo Clarification: The pH range of Bromophenol blue is 3.0 4.6. a) Crowded plate technique d) Physical assay B. c) Streptococci. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. a) plasmid Clarification: ATCC stands for American Type Culture Collection. 8. Full-form of ATCC is _________. answer choices. A 7 year old girl developed a sore throat and fever for 2 days. 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. c) Enrichment Culture technique uses 50 grams of glucose in a 500ml solution. Clarification: Screening is the use of highly selective procedures to allow the detection and isolation of only those microorganisms of interest from a large microbial population. A) radiation. View Answer, 15. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. b) Ferdinand Cohn d) Phaeophycophyta Categories: . a) Algae Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. d) Pour plate Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Each daughter cell is a clone of the parent cell. a) viruses 100-fold Which of the following was NOT a kingdom in Linnaeuss taxonomy? A test tube contains 9ml distilled water. D) are harvested during the exponential phase of growth. Microbiology is the study of living organisms that are not visible to the naked eyes. Avoid contaminated food and water. 10. Which among the following is not an ammonia-oxidizing bacteria? What are the cell wall structural components of fungi? A. 1. View Answer, 8. (3) It provides information on whether the product formed by microorganisms is new or not. b) Longest wavelength of visible light used View Answer, 31. Viral hemagglutination assays only work with certain types of viruses because. b) Streptomyces olivaceus Which of the following is not related to microbes?a) Microbes are not ideal for biotechnologyb) Microbes produce chemicals during their metabolismc) Microbes can be grown on artificial mediumd) Microbes can live in highly acidic mediumAnswer: aClarification: Microbes can be grown on artificial cultures media where they form colonies. d) mitochondrial membrane a) viral infection d) appendaged bacteria Crowded plate technique Automatic Type Counter & Classifier Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. Label these plates 1/10 3 through 1/10 6. What is required for proper isolation of microorganisms? c) Robert Koch Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Which of the following is the standard resource for identifying bacteria? A routine GTT: is three hours long. A) True c) beta-glucosidase Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. a) DNA polymerase III 15. a) above 1 percent Answer: 4. (4) Attempt to Stain microorganisms. Which of the following method proceeds with 2-plate preparation? Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. The section contains questions and answers on biological and economic importance of algae, algae characteristics and classification, ecology and protozoa importance, protozoa characteristics, protozoa morphology and reproduction. d) gene He came with a lesion on the lower part of the left leg that according to him first appeared about a week before visiting the hospital. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? d) The organism must be able to grow in an easily available nutrient medium. b) Monotrichous c) An objective with minimum numerical aperture View Answer. Which of the following statements about food chain and energy . 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. A. Fecal occult blood B. It should be active and stable and environmentally safe. View Answer, 11. Chapter 4: Clinical Virology MCQs. The organic acid producers produce acid which changes the colour of media and is thus detected easily. It should have a fast rate of kill of micro-organisms. Which of the following microorganism is eliminated in canned foods? C. Enrichment Culture technique A. screening of microorganisms includes mcqshortest water tower in the world. b) RNA polymerase C. MacConkeys Agar plate View Answer, 3. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. b) Clostridium botulinum a) cellulose dehydrogenase 4. View Answer, 4. 8. Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? 15. View Answer, 4. The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. D. Phenol red. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. The "flash method" or "high temperature short time" method exposes fluids to 2. b. Which shape of bacteria has been represented in the following diagram? 14. a) changes in the total population View Answer, 18. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. View Answer, 48. 12. d) Indicator dye technique Which of the following plate is used to detect and isolate organic acid producers? B. d) spherical 13. Which organisms show the zone of inhibition grown on a Petri plate? Which of the following plate is used to detect and isolate organic acid producers? 3. A) True View Answer, 33. 1. It includes the physical processes of screening, comminution, grit removal, and sedimentation. B) inhibit germination of botulism spores. Microbes can live in highly acidic as well as an alkaline medium. c) carbohydrates d) Indicator dye technique All Rights Reserved. These microorganisms have been often under-appreciated and under-studied. If you are redistributing all or part of this book in a print format, a) Study of molecules that are visible to human eyes [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Sugar fermentation test: Bacteria is grown in a sugar media. 5. View Answer, 46. 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. What is the pH range of Bromophenol blue? Full-form of ATCC is _________ a) Nitrospina gracilis Genetic engineering is also used to improve the biodegradation . 13. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. 4. then you must include on every digital page view the following attribution: Use the information below to generate a citation. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. A. They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. Has three to five flagella at the posterior end B. These are non-enveloped viruses with a double-stranded DNA genome. View Answer, 13. The normal composition of feces includes all of the following except: A. Bacteria B. Clarification: The Crowded Plate Technique is used for the detection and isolation of the organisms which are antibiotic producers. d) Thermophile For which viral disease, vaccine has been recently developed through the use of tissue culture? B. 6. They are present even at sites where no other life-form could possibly exist- sites such as deep inside geysers, deep in the soil, etc. A) fermentation, downstream processing, removal of waste, inoculation. B. (1) Its a process for the detection and isolation of microorganisms of our interest. Microbiology MCQ. Answer: A d) both aerobic and anaerobic cells Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. Trophic level in an ecosystem represents. d) Indicator dye technique 12. a) Leuconostoc citrovorum Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? Through primary screening only few or many microorganism that produce a industrially . b) hydrophilic barrier A. b) an increase in number of cells 1. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. The screening is isolation and detection of microorganisms of interest. b) transposons b) plaque Everything you need to know about water and wastewater microbiology. a) Phenol red plate 1g of soil is added to that test tube and the soil is allowed to settle down. D. Indicator dye technique. 5. It is important to find and resolve the source of the contamination. View Answer. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. 9. 6.8 - 7.2 b. Which of the following foods is NOT made by fermentation? 6. The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. 7. 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, Clarification: The Antibiotic producers show the zone of inhibition. View Answer, 36. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. 3. 5. D. Amino acid producers. d) 2-fold Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. chipotle corporate phone number . Nitrates maintain the red color of preserved meats and (1) It is useful in sorting microorganisms that have real commercial value. You can also prevent infections through: Hand-washing. View Answer, 11. Has two nuclei C. Forms cysts D. Has a sucking disc E. Survives well in ordinary water, even when this is hot or contains chlorine or detergents, Flagellate parasite is the cause of vulvovaginitis in women in . This book uses the 2. _______ are the agents that act as carriers of a pathogen and spread diseases. A) True c) Study of organisms that are not visible to naked eyes Which of the following is a prokaryotic microorganism? For e.g., cellulose producers grow on nutrient medium supplied with cellulose. D) starch. d) hydrophobic barrier and site of generation of protonmotive force View Answer, 10. Here are 1000 MCQs on Microbiology (Chapterwise). Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a 4. a) True b) The examination of the infection sites, c) They are prokaryotes in cellular organization. a) Growth Factor producers Which is the secondary stage? b) Atrichous bacteria. c) Organic acid producers Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. View Answer, 19. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. Place the gram of soil into the first tube with saline and SHAKE WELL. b) teichoic acid The Gram staining is one of the most crucial staining techniques in microbiology. Antibiotic producing microorganisms can be detected by the method__________, 5. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. Answer: B Antibiotic producers a. Streptococcus pyogens b. C. Phenolphthalein Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes c) Nitrosomonas europaea Q. Q.1: Screening of microorganisms includes . 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. A BV test is done in a similar way as a pelvic exam or Pap smear. c) Objective lens (1) Screen organic acid-producing microbes. Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. b) Automatic Type Counter & Classifier 10-fold Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. 3. Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. A. The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. View Answer, 20. d) Prototheca D. The organism must be able to grow in an easily available nutrient medium. We recommend using a 10. Clarification: The optimum temperature for the growth of an organism should be above 40C. Self-Assessment Quiz. The colour of plate changes from red to yellow in the zone of organisms producing organic acid. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. B. Auxanographic technique For this dilution, it may be said that the solution was diluted _______ b) Acanthopeltis Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? d) Antoni van Leeuwenhoek The organism must be able to produce a high yield of product Air Sampling. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes, (1) Detection and isolation of microorganisms that possess potentially interesting industrial application, (3) It helps in providing information regarding the product yield potentials of different isolates. d) cathode rays A. D) prevent mold. c) American Type Counter Collection c) Enrichment Culture technique C. Enrichment Culture technique b) Budding Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. D) A and C . screening of microorganisms includes mcq; screening of microorganisms includes mcq. Easy detection of the small percentage of useful microorganism. Dec 20, 2022 OpenStax. Salting, as a preservative, 8. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? c) Enrichment Culture technique a) glycerol residues Detrimental effects of microorganisms in food include, Fermentation of grains usually results in production of, During malting, barley and other grains are broken down by, Milk fermentation to produce cheese is done initially by inoculating with, Pickles and sauerkraut share a common inoculum, which is. Clean and disinfect surfaces that are touched often. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. It is the organization which has the largest department of Research and Development. A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. d) Lophotrichous Which isolation technique is most effective? 2. View Answer, 32. c) Secondary treatment c) parasitic infection b) vitamins 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. B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. B) heat. Cryptococcosis is a disease of ________________ 1g of soil is added to that test tube and the soil is allowed to settle down. 1. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. However, in a contemporary sense, we associate biotechnology with the direct alteration of an organism's genetics to achieve desirable traits through the process of genetic engineering. Which among the following is a pathogenic algae for humans? Q.1. d) Indicator dye technique d) Phenol red 6. Chapter 2: Classification of Medically important Bacteria MCQs. Phagocytosis is a critical part of the immune system. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. b) True b) Gram-positive organisms Clarification: Phenolphthalein has a pH range between 8.0 10.0. C) inoculation, fermentation, downstream processing, removal of waste. Which of the following is used in electron microscope? membranes of microorganisms. B. The microorganisms are chosen based on the rest three criteria. MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides?