c) prophage Nitrates maintain the red color of preserved meats and b) Longest wavelength of visible light used Required fields are marked *. In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. A. Report an issue. c) Enrichment Culture technique C) alcohol. The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. Allow discarding of many valueless microbes. B) False, When in doubt, throw it out. Which among the following are Spirochetes? Which of the following is not a subfield of microbiology? Which of the following are the growth morphology of the protozoa? b) Fermented dairy products It should have a fast rate of kill of micro-organisms. the virus must be able to cross-link red blood cells directly. D) all of the above. Gram negative bacteria take the color of safranin stain and appear pink or red. d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture c) Psychrophile Crowded plate technique Which of the following is not microbe?a) Bacteriab) Protozoac) Viroidsd) WormsAnswer: dClarification: Microbes are diverse in nature and include- protozoa, bacteria, fungi and microscopic animal and plant viruses, viroids and also prions that are proteinaceous infectious agents. The microorganisms from lakes and rivers can grow at a salt concentration of _________ A) are among the most widely used preservatives. 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. Which of the following statements about food chain and energy . Self-Assessment Quiz. Name three reserve materials synthesized by microorganisms and note which microbial groups d) Measles 9. About Oracle NetSuite. Performance and sterility testing of media lots should also be determined and Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. The screening is isolation and detection of microorganisms of interest. It is done by using paper, thin layer or other chromatographic techniques. 4. Which scientist proposed adding a kingdom for protists? B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Q. Q.1: Screening of microorganisms includes . Your health care provider will insert a special tool called a speculum into your vagina. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. View Answer, 2. View Answer, 15. a) anaerobic cells c) An objective with minimum numerical aperture The normal composition of feces includes all of the following except: A. Bacteria B. B. Thymol blue Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? View Answer, 8. D) 134 oC for 1 second. 5. Clean and disinfect surfaces that are touched often. View Answer, 9. 6. c) Chlorophycophyta Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. Growth Factor producers d) spherical Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? B) inoculation, downstream processing, fermentation, removal of waste. 2. Answer: A b) Syphilis a) x-rays The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. 13. The Society's role is to help unlock and harness . microscopic with a fried egg shape. These microorganisms have been often under-appreciated and under-studied. b) Nitrosococcus oceanus Juli 2022 View Answer, 31. b) Candida utilis 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. d) 6.4 8.0 c) Nitrosomonas europaea Glycosylated hemoglobin: causes sickle cell anemia. b) Auxanographic technique d) Coliforms View Answer, 45. a) True a) Algae c) an increase in the size of an individual organism What is the fecal test that requires a 3-day specimen? 9. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Clarification: Phenol Red plate is used to detect and isolate organic acid producers. c) chitin d) Indicator dye technique Which among the following are microaerophilic bacteria? Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. Full-form of ATCC is _________ View Answer, 17. d) Hanging Drop technique (2) Chemical, physical and biological properties of a product are also determined during secondary screening. A. Which of the following method is used for the isolation of mutants? Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. a) The organism must be genetically stable Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. 2. uses 100 grams of glucose in a 300ml solution. What is the pH range of Bromophenol blue? 2011-2023 Sanfoundry. b. C. Phenolphthalein Some strains, however, can cause illness. a) Crowded plate technique 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. c) base analog d) Indicator dye technique d) Indicator dye technique Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . For this dilution, it may be said that the solution was diluted _______ d) All of the mentioned A) heat below 100 oC. In an ecosystem, herbivores represent. 1. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. A. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. D. 6.4 8.0. d) Mycoplasmas a) Shortest wavelength of visible light used Which of the following is the standard resource for identifying bacteria? Glycolysis can occur in ___________ D. 2-fold. d) Pedoviridae View Answer, 42. View Answer, 3. Microbiology MCQ. pH, cations, thymidine or thymine, use of supplemented media). C) use of microbes in sewage and pollution control. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. A. The greatest resolution in light microscopy can be obtained with ___________ The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo Secondary screening may be qualitative and quantitative in its approach. The section contains questions and answers on diseases caused by staphylococcus, streptococcus, corynebacterium, aerobic and anaerobic gram, viruses containing single and double stranded dna. The following diagram represents ____________a) Plate with wormsb) Colonies of bacteria on a petri dishc) Onion root cells on a plated) Cheek cellsAnswer: bClarification: The following diagram represents colonies of bacteria on a petri dish. Which of the following dye is colourless at acidic pH and becomes red at basic pH? d) Primary treatment b) cell wall Which was the first disease for which a chemotherapeutic agent was used? a) viruses What does a viral DNA becomes after being associated with the bacterial chromosome? Crowded plate technique Which of the following are true for cytoplasmic membrane? How do you isolate microorganisms from the soil? Phosphorus is essential component of __________ b) Thymol blue Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme Who was the first to observe animalcules under the microscope? A microorganism is a living thing that is too small to be seen with the naked eye. a) phospholipids B) plasmolyzes bacteria and fungi. Engineering 2023 , FAQs Interview Questions, on 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, Fermentation Technology Objective Questions, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 1 and Answers, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 2 and Answers, 250+ MCQs on Media for Industrial Fermentations Minerals, Growth Factors and Buffers and Answers, 250+ MCQs on Improvement of Industrial Microorganisms and Answers, 250+ TOP MCQs on Vibration Isolation and Transmissibility and Answers, 250+ TOP MCQs on Multiversion Schemes, Snapshot Isolation, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, 250+ TOP MCQs on Transaction Isolation Levels and Answers, 250+ TOP MCQs on Enzyme Extraction and Isolation Choice of Enzyme Sources and Answers, 250+ MCQs on Microbial Growth Kinetics Batch Culture and Answers, 200+ TOP CELL CULTURES and CHARACTERISTICS Interview Questions and Answers, 200+ TOP Microbiology Of Foods Interview Questions with Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ MCQs on Brewing Yeast Differentiation (Traditional Methods) and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 300+ TOP Cell Cultures & Characteristics Objective Questions and Answers, 300+ TOP Microbiology of Foods Objective Questions & Answers. a) Crowded plate technique Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. D. Phenol red. Which of the following yeast can be used to produce microbial protein? Answer: C b. Litmus milk test: When bacteria is grown in this medium, there may be the production of acids or alkali or even no change in pH. 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? b) plaque 1g of soil is added to that test tube and the soil is allowed to settle down. c) parasitic infection 3. View Answer, 27. c) Saccharomyces cerevisiae 1g of soil is added to that test tube and the soil is allowed to settle down. 10. Which of the following are present in teichoic acids? Which of the following statement is correct regarding primary screening________. Which of the following method is not used in isolation and screening of desired microorganisms? 4. Answer: B Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. C) inoculation, fermentation, downstream processing, removal of waste. d) 2-fold D. Indicator dye technique. a) Leuconostoc mesenteroides The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. View Answer, 7. 5. 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. c) hydrophobic barrier Penicillin causes inhibition of Mycoplasmas. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. The organism must be able to produce a high yield of product a. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. C. The optimum temperature for the growth of an organism must be above 50C b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. A) True a) Methyl red Want to cite, share, or modify this book? a) 100-fold The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. Through primary screening only few or many microorganism that produce a industrially . Water treatment typically requires three stages to make it potable from sewage. 11. c) beta-glucosidase Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. d) electron beams The process is repeated several times until the requirement is met. 3. Crowded plate technique Clarification: The Enrichment culture technique is useful for the detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? What is the average size of a microbe?a) Less than 1 mmb) More than 1 cmc) Less than 0.1 mmd) More than 0.1 mmAnswer: cClarification: Microbes are microorganisms which have a size less than 0.1 mm. a) Cephaleuros Has three to five flagella at the posterior end B. d) Physical assay Secondary metabolites Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. 2. Who is considered the "father of Western medicine"? 4. b) Monotrichous d) gene Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include Clarification: The optimum temperature for the growth of an organism should be above 40C. a) Leuconostoc citrovorum c) carbohydrates 1. 14. 12. c) 2mm in diameter View Answer, 10. Prokaryotes are unicellular microorganisms whose cells have no nucleus. a) Small pox You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. D) small-scale production is used to synthesize product. a) Eremothecium ashbyi View Answer, 18. Which shape of bacteria has been represented in the following diagram? A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. a) cellulose dehydrogenase Which isolation technique is most effective? d) DNA polymerase II View Answer, 49. are not subject to the Creative Commons license and may not be reproduced without the prior and express written b) Acanthopeltis c) Peritrichous milk, meat, green vegetables, fruits, etc.) View Answer, 37. A) fermentation, downstream processing, removal of waste, inoculation. d) Eyepiece lens View Answer, 39. a) Neisseria gonorrhoeae. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. What is the pH range of Bromophenol blue? C) maintain a high osmotic pressure to kill microorganisms. 37) Which of the following is the selective media used for the cultivation and isolation of. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. c) Bacillus thuringiensis c) 1000-fold Avoid contaminated food and water. D. Indicator dye technique. a) Growth Factor producers Which of the following is the most accurate method for microbial assay of antibiotics? This book uses the As an Amazon Associate we earn from qualifying purchases. Acridine orange is which type of mutagen? A 7 year old girl developed a sore throat and fever for 2 days. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. a) Gram-negative organisms
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