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B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. Which of the following microorganism produces dextran? C) is used to prevent growth of halophiles. d) Coliform bacteria. (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 genetically stable View Answer, 29. The screening is isolation and detection of microorganisms of interest. Isolation of Microorganisms MCQ Questions and Answers Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . C. American Type Counter Collection Which of the following is a family of lambda phage viruses? Some strains, however, can cause illness. a) Treponema 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. Full-form of ATCC is _________ c) AIDS What is the approximate size of the bacterial cell? d) Lophotrichous Which of the following plate is used to detect and isolate organic acid producers? c) Mycobacterium tuberculosis This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. a) anaerobic cells What is the fecal test that requires a 3-day specimen? c) 1000-fold d) 2-fold Which is the secondary stage? Glycolysis can occur in ___________ 4. View Answer, 2. Aims and objectives. d) All of the mentioned View Answer, 3. The section contains MCQs on selective methods, pure cultures and cultural characteristics. b) Fungi a) Leuconostoc citrovorum False. d) Corynebacterium diphtheriae As an Amazon Associate we earn from qualifying purchases. 2. 30 seconds. A. Phenol red plate We recommend using a Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. Clean and disinfect surfaces that are touched often. MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? c) Binary fission Question 6. 15. Air Sampling. b) Gram-positive organisms B) heat. Antibiotic producers pH, cations, thymidine or thymine, use of supplemented media). Rapid Diagnostic Tests for Infectious Diseases Multiple Choice. a) S mallpox 3. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. 8. Growth Factor producers d) glucose residues The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. b) Budding a) peptidoglycan b) teichoic acid Q.1. Note when energy and additional compounds are necessary for any of these mechanisms to operate. c) Objective lens Give the steps of typical sewage treatment plant are as given below. You may refer to the lesson text whenever you are unsure of the answer. The cell structure of gram positive and gram negative bacteria appear as the picture given below after the gram staining procedure, Gram positive bacteria Gram negative bacteria. Prokaryotes can be found everywhere on our planet, even in the most extreme environments. is affected by the patient's food intake on the day of testing. The respiratory chain of bacteria is associated with the _____________ d) hydrophobic barrier and site of generation of protonmotive force MCQ Questions for Class 10 Science Our Environment with Answers A) manipulating the growth environment. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. D) A and C . Biodegradation: Involved Microorganisms and Genetically Engineered a) Growth Factor producers View Answer, 24. Viral hemagglutination assays only work with certain types of viruses because. D. Indicator dye technique. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. In which of the following treatment involve oxidation of organic constituents of the wastewater? Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. c) Study of organisms that are not visible to naked eyes D) removal of waste, inoculation, fermentation, downstream processing. Fermentation Technology Interview Questions and Answers - Sanfoundry answer choices. 45) What are the types of general characteristics that are important for the identification and classification of protozoa? View Answer, 31. B. d) Study of microscope (4) Attempt to Stain microorganisms. Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? a) Crowded plate technique d) Indicator dye technique Rickettsia species are carried by. View Answer, 10. d) Lactobacillus acidophilus c) Chemical assay MCQ's For Lab Technician And Technologists - Part 6 - Lab Tests Guide d) cathode rays c) Microviridae View Answer, 44. Penicillin causes inhibition of Mycoplasmas. c) Desulfotomaculum sp. View Answer. Ch. 1 Multiple Choice - Microbiology | OpenStax 6. C. Enrichment Culture technique [2][3] S. aureus is found in the . requires five blood samples . then you must include on every digital page view the following attribution: Use the information below to generate a citation. a) Thiobacillus thiooxidans 2. Which of the following is the most accurate method for microbial assay of antibiotics? Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? The principal microorganism for yogurt is ______________________ C. MacConkeys Agar plate 1. (4) This may be accomplished by paper, thin layer, chromatographic technique. 7: Isolation of an Antibiotic Producer from soil D. The organism must be able to grow in an easily available nutrient medium. Chapter 4: Clinical Virology MCQs. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? screening of microorganisms includes mcq 6. B) inhibit germination of botulism spores. 3. Here are 1000 MCQs on Microbiology (Chapterwise). 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 are present in teichoic acids? B. Everything you need to know about water and wastewater microbiology. In screening studies, it is recommended to use non-sterile soil, test different inoculation methods and different abiotic stresses, and even select microorganisms from plants under abiotic stress. View Answer, 15. c) Peritrichous a) Final treatment Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a Clarification: ATCC stands for American Type Culture Collection. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Allow discarding of many valueless microbes. Nitrates maintain the red color of preserved meats and c) Chlorella Performance and sterility testing of media lots should also be determined and (PDF) Screening for Microbes Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Which shape of bacteria has been shown in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: dClarification: The following diagram represents spherical shaped bacteria, magnified 1500X. 3. c) fecal streptococci Name three reserve materials synthesized by microorganisms and note which microbial groups b) The examination of the infection sites, c) They are prokaryotes in cellular organization. The production of substances in industrial microbiology occur in the sequence: It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. Crowded plate technique a) fats c) Phenolphthalein Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. A) True d) cellulase c) Crick Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. a) 100-fold d) Phaeophycophyta (2) Attempt to kill microorganisms outside of their natural environment. 12. c) Bacillus thuringiensis C) are products that require additional processing before they can be packaged. View Answer, 8. a) American Type Culture Collection C) maintain a high osmotic pressure to kill microorganisms. 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. A. American Type Culture Collection Sulphates are reduced to hydrogen sulphide by _____________________ For this dilution, it may be said that the solution was diluted _______ The screening is isolation and detection of microorganisms of interest. D. Phenol red. Secondary screening may be qualitative and quantitative in its approach. c) Robert Koch 4. d) Indicator dye technique d) Phenol red a) cellulose dehydrogenase A. Auxanography technique is employed for detecting microorganisms able to produce__________. Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? View Answer, 25. Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. Which of the following method is useful for the detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? For this dilution, it may be said that the solution was diluted _______ chp 25 microbiology 211 mcq Flashcards | Quizlet Secondary metabolites d) bacterial infection b) hydrophilic barrier b) Automatic Type Counter & Classifier Sugar fermentation test: Bacteria is grown in a sugar media. this would be absolutely amazing. d) Pedoviridae Chapter 2: Classification of Medically important Bacteria MCQs. During their metabolism, microbes produce chemicals, some of which are used by human beings. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. c) Streptococci. A) True _______ are the agents that act as carriers of a pathogen and spread diseases. Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. 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. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Which of the following statement is correct regarding primary screening________. In modern plants the screens are cleaned . View Answer, 37. c) neither aerobic and anaerobic cells D) all of the above. d) both aerobic and anaerobic cells B. Auxanographic technique B) False, Microbiology 17 immunization and immune Testi. 6. b) Auxanographic technique Which of the following statements about food chain and energy . d) DNA polymerase II 8.0 10.0 2. A test tube contains 9ml distilled water. Background F. Environmental Sampling - Centers for Disease Control and a) 3.0 4.6 It belongs to the phthalein family that is employed as an acid-base indicator. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. d) American Type Classifier and Collection The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. c) magnetic fields Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. d) Gram-positive bacteria d) gene 5. A) heat below 100 oC. View Answer, 3. D. Indicator dye technique. True Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Answer: A Pathogen & Spoilage Testing - Sigma-Aldrich Which of the following method is used for the isolation of mutants? b) Clostridium botulinum a) Phenol red plate b) cell wall 43) Which of the following methods are the most common and routine culture methods performed in the microbiology lab for the proper isolation and identification of bacteria and fungi? The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. a) Styloviridae d) Cristispira The Gram staining is one of the most crucial staining techniques in microbiology. D) starch. 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(retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . MCQ on Industrial Microbiology - MCQ Biology.com Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. A. 2. 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. other viruses are too dangerous to work with in a clinical lab setting. It is colourless at pH 8.0 and becomes red at pH above 10.0. There are various microorganisms types like bacteria, fungi, archaea, or protists. Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. How do you isolate microorganisms in the air? 3. Your email address will not be published. c) UV light View Answer, 12. c) 2.5 to 4 percent Phagocytosis (article) | Foundation 2: Cells | Khan Academy Which of the following is used in electron microscope? Incorporation of CaCO3 in medium is also used to__________. b) Candida utilis Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Phosphorus is essential component of __________ Place the gram of soil into the first tube with saline and SHAKE WELL. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. d) 6.4 8.0 a) elongated d) The organism must be able to grow in an easily available nutrient medium a) above 1 percent 11 junio, 2022. Screening of Microorganisms: Primary and Secondary Techniques B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. Screening of Industrially Important Microorganism - MCQ Questions d) Hanging Drop technique Enrichment culture technique was developed by_________, 16. 8. c) Saccharomyces cerevisiae Microbes are only present in hot and humid areas.a) Trueb) FalseAnswer: bClarification: Microbes occur everywhere- in soil, water, air, inside our bodies and that of other animals and plants. c) Enrichment Culture technique 8. The organic acid producers produce acid which changes the colour of media and is thus detected easily. True 2. Crowded plate technique Microbes can live in highly acidic as well as an alkaline medium. It will immensely help anyone trying to crack an exam or an interview. 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. D. Rose Bengal Agar plate. 13. Answer: B b) False The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. includes 6 urine samples. 7. Which of the following microorganism is eliminated in canned foods? a) chemical compounds These particles may consist of a single, unattached organism or may occur in the form of clumps composed of a number of . Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. View Answer, 4. Identification of bacteria by biochemical tests. b) an increase in number of cells d) The organism must be able to grow in an easily available nutrient medium. (3) It provides information on whether the product formed by microorganisms is new or not. View Answer, 20. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes 1. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. What does a viral DNA becomes after being associated with the bacterial chromosome? b) cellulose Binary fission begins when the DNA of the bacterium divides into two (replicates). 6. The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. c) nucleotides a) site of generation of protonmotive force a) Crowded plate technique Which of the following are produced by microorganisms? Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include View Answer, 9. The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme View Answer, 11. D. 2-fold. View Answer, 14. 2. 11. a) Chemical and biological assay Each daughter cell is a clone of the parent cell. What are the cell wall structural components of fungi? 1g of soil is added to that test tube and the soil is allowed to settle down. a) Watson In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b Crowded plate technique The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo 10. Microbial Food Spoilage- Types of microorganisms with examples Crowded plate technique Growth of bacteria or microorganisms refer to __________________ d) Antoni van Leeuwenhoek 1. Our mission is to improve educational access and learning for everyone. Which among the following is a pathogenic algae for humans? C) use of microbes in sewage and pollution control. Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? uses 50 grams of glucose in a 500ml solution. a) glycerol residues 5. About Oracle NetSuite. Potato Dextrose Agar plate Children are more susceptible to this disease. The section contains questions and answers on diseases caused by staphylococcus, streptococcus, corynebacterium, aerobic and anaerobic gram, viruses containing single and double stranded dna. 12. Acridine orange is which type of mutagen? Plasmodium divides by which of the following method most commonly? Which of the following method proceeds with 2-plate preparation? and you must attribute OpenStax. APT test C. Elastase I D. Quantitative fecal fat testing: 6. What is the name of the procedure performed under sterile conditions to eliminate B) False, When in doubt, throw it out. False. Bacteria do not grow at a water activity level below 0.91 and require neutral pH (6.5-7) to cause food spoilage (e.g. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? Bacterial Vaginosis Test: MedlinePlus Medical Test Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. a) False Which of the following method is not used in isolation and screening of desired microorganisms? d) Amino acid producers Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. b) ribitol residues 7. C. Enrichment Culture technique View Answer, 35. b) aerobic cells A) True a) changes in the total population c) Enrichment Culture technique Wash your hands with soap and water for at least 20 seconds. C. 5 8 View Answer, 17. C) sugar. 7. b) mutualistic You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. View Answer, 16. Measles is a disease caused by a virus, it is spread via respiratory droplets. a) Crowded plate technique Water and Wastewater Microbiology (Exam Questions) Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. 2. View Answer, 6. c) An objective with minimum numerical aperture The Quizzes about Fecal Analysis (32 tests) - MedQuizzes 8. 10. 14. Ch. 20 Multiple Choice - Microbiology | OpenStax 5. However, if environmental contamination can enter the system, pathogens could get in too. The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. Microbiology Multiple Choice Questions and Answers (MCQs) This reduces the cooling costs in large scale fermenters. C. Enrichment Culture technique Blood C. Electrolytes D. Water: 5. b) Corticoviridae B. 5. View Answer, 27. Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. What is high throughput screening used for? (2) It determines which microorganisms can produce a compound. Which of the following method is not used in isolation and screening of desired microorganisms? Clarification: Adenoviruses cause respiratory infections. Wish you the best in your endeavor to learn and master Microbiology!

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