Name three reserve materials synthesized by microorganisms and note which microbial groups (3) It provides information on whether the product formed by microorganisms is new or not. a) 3.0 4.6 30 seconds. a) Study of molecules that are visible to human eyes C. 1000-fold 15. In which of the following treatment involve oxidation of organic constituents of the wastewater? It is done by using paper, thin layer or other chromatographic techniques. and you must attribute OpenStax. D. American Type Classifier and Collection. 25. a)Microaerophilic. screening of microorganisms includes mcqwarning signs for a deteriorating patient with covid 19 infection 2022.07.03 18:36 18:36 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. 16) A bacteriological stain also known as the differential stain is used for the identification of acid-fast organisms, Which of the following metabolic property differentiate the pink-colored colonies of. View Answer, 21. Blood C. Electrolytes D. Water: 5. 6. The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. 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. Screening includes primary screening and secondary screening. Clarification: The pH range of Bromophenol blue is 3.0 4.6. a) Growth Factor producers 4. Crowded plate technique is used for screening of____________. Microorganism Definition. View Answer, 22. a) Condenser lens Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? 2. c) Mumps D) are harvested during the exponential phase of growth. Sulphur can be utilized by bacteria in the a. a) Leuconostoc mesenteroides Which of the following foods is NOT made by fermentation? C) selecting microbial strains that lack a feedback system. View Answer, 33. Prokaryotes can be found everywhere on our planet, even in the most extreme environments. 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. Gram negative bacteria take the color of safranin stain and appear pink or red. C. 5 8 Which among the following is not an ammonia-oxidizing bacteria? View Answer. The lesson covers the complete explanation of class 8 Chapter 2 Microorganisms.Topics covered are Introduction to Micro-organisms and microbiology, different types of Micro-organisms, Useful and Harmful Micro-organisms. 9. 30 seconds. The screening is isolation and detection of microorganisms of interest. 1. Biology Multiple Choice Questions on Microbes. d) 5 percent The colour of plate changes from red to yellow in the zone of organisms producing organic acid. D. Phenol red. d) All of the mentioned Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? d) hydrophobic barrier and site of generation of protonmotive force D. Indicator dye technique. B. 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. It doesn't include viruses and prions because they are classified as non-living. A test tube contains 9ml distilled water. 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, C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Symptoms include cough and lung infection. A) heat below 100 oC. C. MacConkeys Agar plate Question 6. A) True (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. View Answer, 9. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. 11 junio, 2022. 6. The principal microorganism for yogurt is ______________________ screening of microorganisms includes mcq; screening of microorganisms includes mcq. View Answer, 8. Which of the following are the growth morphology of the protozoa? Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. d) Thermophile Which of the following method is not used in isolation and screening of desired microorganisms? Clarification: The optimum temperature for the growth of an organism should be above 40C. The reason they are called microorganisms is that you can only see them when you use a microscope. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. What is the pH range of Bromophenol blue? B) inhibit germination of botulism spores. You may refer to the lesson text whenever you are unsure of the answer. Crowded plate technique 1. d. using damaged equipment and glassware. Answer: C 3. a) Spread-plate View Answer. 7. This book uses the The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. C) inoculation, fermentation, downstream processing, removal of waste. 12. The well-isolated colonies are antibiotic producers with the zone of inhibition. b) Acanthopeltis A. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. 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? View Answer, 29. The organic acid producers produce acid which changes the colour of media and is thus detected easily. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. A) True a) Thiobacillus thiooxidans 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. membranes of microorganisms. d) Malaria [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. Butanol is obtained by fermenting molasses by. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. c) An objective with minimum numerical aperture b) The organism must be able to produce a high yield of product c) Breads The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. It is important to find and resolve the source of the contamination. b) Treponema pallidum screening of microorganisms includes mcqshortest water tower in the world. View Answer, 23. Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. 2. a) x-rays d) American Type Classifier and Collection False. b) Streptococcus lactis Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. 1. Our Environment Class 10 MCQ Question 6. consent of Rice University. View Answer, 45. d) Coliforms b) Nitrosococcus oceanus Tyrocidines are more effective against ___________________ 10. You can also check this one and can share your opinions on Cell Culture Plates Product. a) Cyanobacteria, Fungi and Viruses Which of the following morphological characteristics is an important identification characteristic of. View Answer, 11. b) False A food chain comprising birds, green plants, fish and man. Which of the following is NOT a criterion for the choice of an organism? Which of the following is the standard resource for identifying bacteria? Which microorganism(s) among the following perform photosynthesis by utilizing light? View Answer, 3. Which shape of bacteria has been represented in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: aClarification: The following diagram represents rod-shaped bacteria, magnified 1500X. View Answer. It belongs to the phthalein family that is employed as an acid-base indicator. 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. Cellulose is degraded to cellobiose by the enzyme __________________ 1. 4. 26. False. About Oracle NetSuite. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. a) electron beams and magnetic fields 5. A BV test is done in a similar way as a pelvic exam or Pap smear. a) American Type Culture Collection a) Bacillariophycophyta Protozoa that eat other organisms are known as _______________ It is done by using paper, thin layer or other chromatographic techniques. Indeed, until Anton von Leeuwenhoek invented . 100-fold Chemical preservatives do NOT include It changes from yellow at pH 3.0 to blue-violet at pH 4.6. Screens are made of long, closely spaced, narrow metal bars. They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. View Answer, 31. 15. 2. D) prevent mold. d) saprophytic d) appendaged bacteria a) DNA polymerase III Which of the following types of mutants can be isolated using the replica plate technique? d) Indicator dye technique 5. A) retards growth of Staphylococcus aureus. A. c) ribitol or glycerol residues Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. d) Coliform bacteria. c) Spirochetes Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. 10. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. a) The organism must be genetically stable. c) Spirillum volutans a) above 1 percent Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? the virus must be able to lyse red blood cells. b) Advanced treatment In an ecosystem, herbivores represent. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. c) Enrichment Culture technique These microorganisms have been often under-appreciated and under-studied. 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. 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. B. Thymol blue magic island poem tone Consult Now D) small-scale production is used to synthesize product. c) Crick Which of the following method can be used to determine the number of bacteria quantitatively? C. Enrichment Culture technique The section contains multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. The Gram staining is one of the most crucial staining techniques in microbiology. Which of the following method is not used in isolation and screening of desired microorganisms? 1. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. All Rights Reserved. c) Pour-plate and spread plate The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. 12. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. c) Enrichment Culture technique b) 8.0 10.0 Good work practices include, a. smelling and tasting chemicals . Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? 6. b) Antibiotic producers Crowded plate technique Genetic engineering is also used to improve the biodegradation . A. Answer: 4. a) chemical compounds This is one of the widely used methods and more important. 11. View Answer, 44. c) prophage d) The organism must be able to grow in an easily available nutrient medium 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. 15. D. Indicator dye technique. E. coli is a sub-group of the fecal coliform group. b) Budding Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? D) A and C . (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. d) Gram-positive bacteria 11. Which of the following is a correct usage of binomial nomenclature? To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. View Answer, 24. D) all of the above. View Answer, 10. a) Crowded plate technique b) Borrelia the virus must not be able to lyse red blood cells.