B) False, Pasteurization is used to sterilize milk. D. American Type Classifier and Collection. b) Auxanographic technique 9. View Answer, 6. a) Crowded plate technique a) Treponema Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. View Answer, 4. c) magnetic fields View Answer, 44. It is further followed by secondary screening, to check the capabilities and gain information about these organisms. Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. C. 1000-fold Bacteria having clusters of flagella at both poles of cells are known as? Answer: D C. Enrichment Culture technique Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. Sulphur can be utilized by bacteria in the a. 6. MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. Full-form of ATCC is _________ Which among the following is a pathogenic algae for humans? 15. A. b) Acanthopeltis Microbes are certainly ideal for biotechnology. d) 6.4 8.0 Wish you the best in your endeavor to learn and master Microbiology! This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. View Answer, 9. c) nucleotides The reason they are called microorganisms is that you can only see them when you use a microscope. d) Physical assay 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. Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? View Answer, 30. a) anaerobic cells b) Fermented dairy products c) Spirochaeta 5. Rickettsia species are carried by. c) 2mm in diameter c) Study of organisms that are not visible to naked eyes The section contains MCQs on spirochetes, negative rods, cocci, facultatively anaerobic gram, rickettsias and chlamydias, mycoplasmas, positive cocci and positive bacteria. b) an increase in number of cells It is colourless at pH 8.0 and becomes red at pH above 10.0. answer choices. A) True The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. 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. d) 2-fold (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. Who is considered the father of Western medicine? 11. magic island poem tone Consult Now In this process desired microorganism is generally isolated from a natural environment like soil, which . Our mission is to improve educational access and learning for everyone. b) True 6. a) cellulose dehydrogenase 26. There are various microorganisms types like bacteria, fungi, archaea, or protists. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. How do you isolate microorganisms from the soil? Biology Multiple Choice Questions on Microbes. a) above 1 percent a) electron beams and magnetic fields Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. View Answer, 8. b) cell wall Phagocytosis is a critical part of the immune system. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. All microbes are harmful to humankind.a) Trueb) FalseAnswer: bClarification: Although microbes cause a large number of diseases in human beings, various animals and plants, but not all microbes are harmful. A. Question 6. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. 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. a) Gram-negative organisms b) Auxanographic technique In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? 1. d) Coliform bacteria. d) both aerobic and anaerobic cells 6. The section contains MCQs on selective methods, pure cultures and cultural characteristics. View Answer, 40. A) retards growth of Staphylococcus aureus. Cellulose is degraded to cellobiose by the enzyme __________________ The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. 1. 30 seconds. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? b) Clostridium botulinum Answer: A a) changes in the total population 2011-2023 Sanfoundry. 2. During the test, You will take off your clothes below your waist. Crowded plate technique is used for screening of____________. For which viral disease, vaccine has been recently developed through the use of tissue culture? 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. b) Streak-plate Which one of the following organisms is least likely to cause this illness? Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include 2. 10. B. D. Indicator dye technique. b) Monotrichous MCQ on Our Environment Question 9. c) fecal streptococci a) Crowded plate technique c) Organic acid producers Which among the following is not an ammonia-oxidizing bacteria? D. Amino acid producers. Which of the following types of microorganisms is photosynthetic? 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. They are mainly of two types: Primary and Secondary Screening Primary Screening : The effective screening must in one or few steps which allow the discarding of many valueless microorganisms, while at the . Growth of bacteria or microorganisms refer to __________________ d) Photosynthetic sulfur bacteria Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. Which of the following is the primary screening method? a) Thiobacillus thiooxidans Which of the following yeast can be used to produce microbial protein? Which isolation technique is most effective? 7. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. What is Microbiology? View Answer, 22. b) cellulose a) Lactobacillus c) Phenolphthalein Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. d) Thermophile b) Atrichous bacteria. A. 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. determined to obtain accurate susceptibility results. (2) Attempt to kill microorganisms outside of their natural environment. c) Psychrophile Answer: B A. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Sulphates are reduced to hydrogen sulphide by _____________________ 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? the virus must be able to cross-link red blood cells directly. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Crowded plate technique Which of the following is a correct usage of binomial nomenclature? b) False d) chitin, cellulose, or hemicellulose c) base analog C. The optimum temperature for the growth of an organism must be above 50C C) is used to prevent growth of halophiles. If you are redistributing all or part of this book in a print format, View Answer, 29. Auxanography technique is employed for detecting microorganisms able to produce__________. c) 5 8 10. C) new batches of microorganisms are screened for increased yield. d) Primary treatment Which of the following method proceeds with 2-plate preparation? 2. 2. Who is considered the "father of Western medicine"? The section contains multiple choice questions and answers on normal flora, human host, normal flora distribution, microbial adherence, epithelial cell layers penetration and microbial virulence factors. Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes d) proteins The process is repeated several times until the requirement is met. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. 1. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. Prokaryotes can be found everywhere on our planet, even in the most extreme environments. a) Nitrospina gracilis 6. b) Streptococcus lactis About Oracle NetSuite. c) 2.5 to 4 percent d) Fungi False. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . c) Lactobacilli 14. Thank you so much for sharing. the virus must not be able to lyse red blood cells. Which of the following foods is NOT made by fermentation? 3. Who was the first to observe "animalcules" under the microscope? Which of the following is not a subfield of microbiology? A. A) fermentation, downstream processing, removal of waste, inoculation. Full-form of ATCC is _________. d) Mycoplasmas then you must include on every digital page view the following attribution: Use the information below to generate a citation. Clarification: Hanging drop technique is used for motility testing of bacteria. Some strains, however, can cause illness. Dec 20, 2022 OpenStax. 1. c) rod shaped In batch fermentation, Who proposed that swamps might harbor tiny, disease-causing animals too small to see? 8. pH, cations, thymidine or thymine, use of supplemented media). 3. 11. b) Auxanographic technique Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. A) True (2) Chemical, physical and biological properties of a product are also determined during secondary screening. View Answer, 47. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. Glycosylated hemoglobin: causes sickle cell anemia. c) holozoic B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. d) Indicator dye technique Answer: 4. The principal microorganism for yogurt is ______________________ A. a) peptidoglycan C. MacConkeys Agar plate 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. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. B. This book uses the screening of microorganisms includes mcq; screening of microorganisms includes mcq. c) chitin Juli 2022 Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Which of the following plate is used to detect and isolate organic acid producers? d) Phenol red D. Indicator dye technique. (4) This may be accomplished by paper, thin layer, chromatographic technique. Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Antibiotic producers This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. c) Enrichment Culture technique a) Spread-plate A. B) False, Mass-produced microbial cells can be used as livestock feed. Which was the first disease for which a chemotherapeutic agent was used? d) Measles 44) Which of the following microorganisms can grow only as strict intracellular parasites? 3. [1] Infections are common both in community-acquired as well as hospital-acquired settings and treatment remains challenging to manage due to the emergence of multi-drug resistant strains such as MRSA (Methicillin-Resistant Staphylococcus aureus). Which of the following was NOT a kingdom in Linnaeuss taxonomy? A 7 year old girl developed a sore throat and fever for 2 days. b) 0.5 to 1.0 micrometer in diameter B) False, When in doubt, throw it out. What does a viral DNA becomes after being associated with the bacterial chromosome? 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. Your health care provider will insert a special tool called a speculum into your vagina. The Microbiology Society has a vision and mission around which we base our strategy. View Answer, 15. b) The organism must be able to produce a high yield of product The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. True. Engineering 2023 , FAQs Interview Questions. b) Rabies During their metabolism, microbes produce chemicals, some of which are used by human beings. Everything you need to know about water and wastewater microbiology. d) Pedoviridae The screening is isolation and detection of microorganisms of interest. d) Rose Bengal Agar plate Note when energy and additional compounds are necessary for any of these mechanisms to operate. 12. Secondary screening may be qualitative and quantitative in its approach. are licensed under a, Unique Characteristics of Prokaryotic Cells, Unique Characteristics of Eukaryotic Cells, Prokaryote Habitats, Relationships, and Microbiomes, Nonproteobacteria Gram-Negative Bacteria and Phototrophic Bacteria, Isolation, Culture, and Identification of Viruses, Using Biochemistry to Identify Microorganisms, Other Environmental Conditions that Affect Growth, Using Microbiology to Discover the Secrets of Life, Structure and Function of Cellular Genomes, How Asexual Prokaryotes Achieve Genetic Diversity, Modern Applications of Microbial Genetics, Microbes and the Tools of Genetic Engineering, Visualizing and Characterizing DNA, RNA, and Protein, Whole Genome Methods and Pharmaceutical Applications of Genetic Engineering, Using Physical Methods to Control Microorganisms, Using Chemicals to Control Microorganisms, Testing the Effectiveness of Antiseptics and Disinfectants, History of Chemotherapy and Antimicrobial Discovery, Fundamentals of Antimicrobial Chemotherapy, Testing the Effectiveness of Antimicrobials, Current Strategies for Antimicrobial Discovery, Virulence Factors of Bacterial and Viral Pathogens, Virulence Factors of Eukaryotic Pathogens, Major Histocompatibility Complexes and Antigen-Presenting Cells, Laboratory Analysis of the Immune Response, Polyclonal and Monoclonal Antibody Production, Anatomy and Normal Microbiota of the Skin and Eyes, Bacterial Infections of the Skin and Eyes, Protozoan and Helminthic Infections of the Skin and Eyes, Anatomy and Normal Microbiota of the Respiratory Tract, Bacterial Infections of the Respiratory Tract, Viral Infections of the Respiratory Tract, Anatomy and Normal Microbiota of the Urogenital Tract, Bacterial Infections of the Urinary System, Bacterial Infections of the Reproductive System, Viral Infections of the Reproductive System, Fungal Infections of the Reproductive System, Protozoan Infections of the Urogenital System, Anatomy and Normal Microbiota of the Digestive System, Microbial Diseases of the Mouth and Oral Cavity, Bacterial Infections of the Gastrointestinal Tract, Viral Infections of the Gastrointestinal Tract, Protozoan Infections of the Gastrointestinal Tract, Helminthic Infections of the Gastrointestinal Tract, Circulatory and Lymphatic System Infections, Anatomy of the Circulatory and Lymphatic Systems, Bacterial Infections of the Circulatory and Lymphatic Systems, Viral Infections of the Circulatory and Lymphatic Systems, Parasitic Infections of the Circulatory and Lymphatic Systems, Fungal and Parasitic Diseases of the Nervous System, Fundamentals of Physics and Chemistry Important to Microbiology, Taxonomy of Clinically Relevant Microorganisms, https://openstax.org/books/microbiology/pages/1-introduction, https://openstax.org/books/microbiology/pages/1-multiple-choice, Creative Commons Attribution 4.0 International License. a) glycerol residues D) 134 oC for 1 second. d) glucose residues A) are essential to microbe function. Sanfoundry Global Education & Learning Series Fermentation Technology. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. Which of the following plate is used to detect and isolate organic acid producers? View Answer, 23. 1g of soil is added to that test tube and the soil is allowed to settle down. B. Auxanographic technique Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Which of the following statement is correct regarding primary screening________. d) saprophytic a) Mesophile D. Indicator dye technique. View Answer, 8. Indeed, until Anton von Leeuwenhoek invented . D) A and C . View Answer, 21. The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. Which among the following are microaerophilic bacteria? 5. Viral hemagglutination assays only work with certain types of viruses because. 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. View Answer, 27. D. Rose Bengal Agar plate. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. a) Phenol red plate d) Pour plate View Answer, 20. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. Which of the following is the most accurate method for microbial assay of antibiotics? D. Phenol red. d) Lophotrichous Place the gram of soil into the first tube with saline and SHAKE WELL. View Answer, 11. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. 1. Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. a) Neisseria gonorrhoeae. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. c) Peritrichous Which of the following method is not used in isolation and screening of desired microorganisms? View Answer, 19. c) Pour-plate and spread plate 11 junio, 2022. MCQ on Industrial Microbiology. View Answer, 2. Who is known as the father of Microbiology? b) vitamins View Answer. b) 8.0 10.0 c) Enrichment Culture technique 10. True _______ are the agents that act as carriers of a pathogen and spread diseases. 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. 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. Required fields are marked *. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. D. 6.4 8.0. Definition: true bacteria; bacteria excluding the archaea. The normal composition of feces includes all of the following except: A. Bacteria B. These particles may consist of a single, unattached organism or may occur in the form of clumps composed of a number of . Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . A) substrates are added to the system all at once and runs until product is harvested. C) are products that require additional processing before they can be packaged. c) Chlorella Which of the following method is not used in isolation and screening of desired microorganisms? Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. b) below 1 percent b) Xanthophycophyta d) Lactobacillus acidophilus A. American Type Culture Collection Clarification: ATCC stands for American Type Culture Collection. A) radiation. Chrysolaminarin is the reserved food of ___________________ 2. c) MacConkeys Agar plate Secondary metabolites (1) Screen organic acid-producing microbes. screening of microorganisms includes mcq. C. Enrichment Culture technique Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. Which of the following types of mutants can be isolated using the replica plate technique? 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. A. 6. B. Auxanographic technique 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 . Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? B) sulfites. B) are by-products of metabolism that are not important to microbe function. (2) It determines which microorganisms can produce a compound. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. [2][3] S. aureus is found in the . requires five blood samples . other viruses are too dangerous to work with in a clinical lab setting. A test tube contains 9ml distilled water. d) gene d) Bacillus polymyxa Which of the following are important primary screening techniques? Clean and disinfect surfaces that are touched often. View Answer, 17. Clarification: The optimum temperature for the growth of an organism should be above 40C. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. A routine GTT: is three hours long. This quiz is designed to help you assess how well you have learned the content of this lesson.

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