5. are not subject to the Creative Commons license and may not be reproduced without the prior and express written Screening of industrial microorganisms - SlideShare uses 50 grams of glucose in a 500ml solution. d) Indicator dye technique c) Peritrichous B. 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. 4. Lipopolysaccharide in cell walls is characteristic of? b) Thymol blue 6. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? A) heat below 100 oC. d) Cristispira b) Magnifying lens Who was the first to observe animalcules under the microscope? Isolation of Microorganisms MCQ Questions and Answers E. coli is a sub-group of the fecal coliform group. Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. Microbes can live in highly acidic as well as an alkaline medium. a) Crowded plate technique 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. A) True A) True Primary Screening of Microorganisms: Primary screening may be defined as detection and isolation of the desired microorganism based on its qualitative ability to produce the desired product like antibiotic or amino acid or an enzyme etc. View Answer, 18. b) below 1 percent The normal composition of feces includes all of the following except: A. Bacteria B. D. Indicator dye technique. Children are more susceptible to this disease. View Answer, 10. 1. Growth of bacteria or microorganisms refer to __________________ Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Glycolysis can occur in ___________ It is the organization which has the largest department of Research and Development. b) plaque Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. d) Thermophile Which of the following media is used for screening amylase? c) Gram-negative bacteria Clarification: Phenolphthalein has a pH range between 8.0 10.0. a) Amphitrichous The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. Penicillin causes inhibition of Mycoplasmas. c) Streptococcus thermophilus 13. Which of the following plate is used to detect and isolate organic acid producers? True. c) parasitic infection a) Leuconostoc mesenteroides (1) Screen organic acid-producing microbes. Full-form of ATCC is _________ View Answer, 5. Which of the following is a family of lambda phage viruses? 3. Which of the following is a type of fungal microorganism? 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. is affected by the patient's food intake on the day of testing. True In an ecosystem, herbivores represent. The microorganisms from lakes and rivers can grow at a salt concentration of _________ (3) It provides information on whether the product formed by microorganisms is new or not. c) Saccharomyces cerevisiae (2) It determines which microorganisms can produce a compound. MCQ's For Lab Technician And Technologists - Part 6 - Lab Tests Guide [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). C) alcohol. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. A. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. magic island poem tone Consult Now A. C. MacConkeys Agar plate All Rights Reserved. MCQ on Industrial Microbiology. View Answer, 6. b) aerobic cells Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. 6. d. using damaged equipment and glassware. b) False C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Done in one or few steps. View Answer, 40. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. Answer: C Which of the following foods is NOT made by fermentation? This reduces the cooling costs in large scale fermenters. B. The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. 2. d) 5 percent Staphylococcus Aureus - StatPearls - NCBI Bookshelf a) Gram-negative organisms Clarification: ATCC stands for American Type Culture Collection. Which isolation technique is most effective? d) bacterial infection 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. Place the gram of soil into the first tube with saline and SHAKE WELL. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. Which of the following method is not used in isolation and screening of desired microorganisms? Which of the following are true for cytoplasmic membrane? B) sulfites. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Which organisms show the zone of inhibition grown on a Petri plate? C) maintain a high osmotic pressure to kill microorganisms. a) site of generation of protonmotive force The section contains multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. B. Auxanographic technique d) hydrophobic barrier and site of generation of protonmotive force Plasmodium divides by which of the following method most commonly? C) are products that require additional processing before they can be packaged. C) 72 oC for 15 seconds. Binary fission begins when the DNA of the bacterium divides into two (replicates). PDF Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi Primary treatment removes material that will either float or readily settle out by gravity. d) glucose residues Symptoms include cough and lung infection. View Answer, 37. a) Leuconostoc citrovorum The reason they are called microorganisms is that you can only see them when you use a microscope. a) Crowded plate technique a) cytoplasmic membrane B. B) are by-products of metabolism that are not important to microbe function. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. Which of the following are important primary screening techniques? Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. View Answer, 13. b) irregular Rhizobium bacteria. Sanfoundry Global Education & Learning Series Fermentation Technology. . c) carbohydrates Eubacteria - Definition and Examples - Biology Online Dictionary B. 3.0 4.6 (4) This may be accomplished by paper, thin layer, chromatographic technique. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. Bioremediation of polluants utilizing biodegradation abilities of microorganisms include the natural attenuation, although it may be enhanced by engineered techniques, either by addition of selected microorganisms (bioaugmentation) or by biostimulation, where nutrients are added. d) DNA polymerase II a) plasmid Primary methods to prevent food spoilage do NOT include View Answer, 8. Antibiotic producers 2. Answer: B Clean and disinfect surfaces that are touched often. 10. A. Which of the following are present in teichoic acids? A routine GTT: is three hours long. APT test C. Elastase I D. Quantitative fecal fat testing: 6. MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? 8. Avoid contaminated food and water. A) True Place 6 test tubes into a rack and fill each with 9ml of 0.9% NaCl solution. b) Streptococcus lactis Which of the following method is not used in isolation and screening of desired microorganisms? 3. Which of the following is the primary screening method? View Answer, 33. b) Streptomyces olivaceus d) All of the mentioned c) Spirillum volutans screening of microorganisms includes mcq 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. c) 1000-fold Has three to five flagella at the posterior end B. d) Multiple fission 4. Which of the following types of microorganisms is photosynthetic? B) False, Mass-produced microbial cells can be used as livestock feed. 5. b) Atrichous bacteria. The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. A) retards growth of Staphylococcus aureus. c) DNA polymerase I For e.g., cellulose producers grow on nutrient medium supplied with cellulose. 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, 2. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . 11. a) phospholipids Acridine orange is which type of mutagen? Which is the secondary stage? c) AIDS This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. 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. 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. The principal microorganism for yogurt is ______________________ Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. Each daughter cell is a clone of the parent cell. c) fecal streptococci 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. 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. a. Streptococcus pyogens b. D) prevent mold. Clarification: Adenoviruses cause respiratory infections. b) hexokinase 42) Which of the following are the routine diagnostic methods performed for the microbial examination of blood specimens collected from a patient with a high fever for more than 2 days? 38) All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, b) Used for the culture of common fastidious bacteria, c) It is used for the culture of hemolytic bacteria. D) are harvested during the exponential phase of growth. 13. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. 1. Secondary metabolites Clarification: Phenol Red plate is used to detect and isolate organic acid producers. Note when energy and additional compounds are necessary for any of these mechanisms to operate. c) Microviridae d) gene 4. View Answer, 50. 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 . Clarification: Hanging drop technique is used for motility testing of bacteria. b) False b) The organism must be able to produce a high yield of product. d) Nitrosovibrio tenuis Secondary screening may be qualitative and quantitative in its approach. Thank you so much for sharing. c) Enrichment Culture technique The Gram staining is one of the most crucial staining techniques in microbiology. C. Phenolphthalein 4. c) The optimum temperature for the growth of an organism must be above 50C. b) Auxanographic technique Clarification: The optimum temperature for the growth of an organism should be above 40C. Which of the following method is not used in isolation and screening of desired microorganisms? View Answer, 42. The process is repeated several times until the requirement is met. 1. A. American Type Culture Collection d) cellulase Good work practices include, a. smelling and tasting chemicals . Categories: . d) Lactobacillus acidophilus A. 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. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. MCQ on Industrial Microbiology - MCQ Biology.com The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. All Rights Reserved. d) electron beams A) radiation. A) are essential to microbe function. 15. Ch. 1 Multiple Choice - Microbiology | OpenStax d) cathode rays Answer: B b) Acanthopeltis Blood C. Electrolytes D. Water: 5. C. Enrichment Culture technique b) Treponema pallidum b) RNA polymerase 12. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. D. Indicator dye technique. 3. Who was the first to observe "animalcules" under the microscope? microscopic with a fried egg shape. b) an increase in number of cells 14. d) 2 micrometer in diameter 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 . b) Study of animals and their family Identify bacteriophage. The Society's role is to help unlock and harness . Defined media and complex media are two broad classes of culture media used in microbiology. Bacteria | What is microbiology? | Microbiology Society 9. A) True Isolation, Characterization, and Screening of Antimicrobial-Producing The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. View Answer, 44. Which of the following is NOT a criterion for the choice of an organism? Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? View Answer, 7. 6. d) Prototheca c) Organic acid producers d) Study of microscope Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. The process is repeated several times until the requirement is met. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. A. this would be absolutely amazing. C) selecting microbial strains that lack a feedback system. C) sugar. 14. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. What is the pH range of Bromophenol blue? C) is used to prevent growth of halophiles. a) Vibrio cholerae If you would like to learn "Microbiology" thoroughly, you should attempt to work on the complete set of 1000+ MCQs - multiple choice questions and answers mentioned above. a. 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. View Answer, 35. Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. Chemical preservatives do NOT include A. B) False, When in doubt, throw it out. c) 5 8 You can also prevent infections through: Hand-washing. Indeed, until Anton von Leeuwenhoek invented . answer choices. a) Nitrospina gracilis Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? The greatest resolution in light microscopy can be obtained with ___________ Except where otherwise noted, textbooks on this site Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. a) Final treatment A 7 year old girl developed a sore throat and fever for 2 days. Which one of the following organisms is least likely to cause this illness? Viral hemagglutination assays only work with certain types of viruses because. These microorganisms have been often under-appreciated and under-studied. D) starch. 12. Principles of Epidemiology: Lesson 5 Quiz|Self-Study Course SS1978|CDC As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. View Answer, 49. b) Biological assay c) Enrichment Culture technique screening of microorganisms includes mcq; screening of microorganisms includes mcq. b) vitamins If you are redistributing all or part of this book in a print format, A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. b) 0.5 to 1.0 micrometer in diameter B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. D) all of the above. b) Xanthophycophyta Which of the following types of mutants can be isolated using the replica plate technique? View Answer, 26. a) x-rays Crowded plate technique Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. Engineering 2023 , FAQs Interview Questions. View Answer, 34. Which among the following group of microorganisms are found in the ducts of cows mammary glands? c) Chlorophycophyta It includes the physical processes of screening, comminution, grit removal, and sedimentation.