c) Peritrichous A. d) Coxiella burnetii b) Auxanographic technique View Answer, 31. 2. View Answer, 7. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. c) 1000-fold Cellulose is degraded to cellobiose by the enzyme __________________ Performance and sterility testing of media lots should also be determined and In this process the bacterium, which is a single cell, divides into two identical daughter cells. View Answer, 48. You will lie on your back on an exam table, with your feet in stirrups. View Answer, 12. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? View Answer, 28. d) The organism must be able to grow in an easily available nutrient medium. What is Microbiology? Chapter 3: Classification of Viruses MCQs. Crowded plate technique (3) Attempt to synthesized secondary metabolites outside of their natural environment. Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. D. 6.4 8.0. 2. includes 6 urine samples. C) inoculation, fermentation, downstream processing, removal of waste. b) The organism must be able to produce a high yield of product. The "flash method" or "high temperature short time" method exposes fluids to Answer: A. 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. Fecal coliform bacteria are a subgroup of total coliform bacteria. a) above 1 percent b) vitamins View Answer, 9. a) Streptomyces sp. c) Cyanobacteria It is important to find and resolve the source of the contamination. A) True Place the gram of soil into the first tube with saline and SHAKE WELL. 1. b) True A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. screening of microorganisms includes mcq; screening of microorganisms includes mcq. Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. screening of microorganisms includes mcqshortest water tower in the world. [2][3] S. aureus is found in the . False. View Answer, 24. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . (1) Screen organic acid-producing microbes. c) Enrichment Culture technique Pathogen testing is continuously performed throughout the production . 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. a) Leuconostoc mesenteroides Answer: B Trophic level in an ecosystem represents. B. Auxanographic technique c) AIDS 3. Who was the first to observe "animalcules" under the microscope? Screens are made of long, closely spaced, narrow metal bars. b) aerobic cells a) changes in the total population Full-form of ATCC is _________ d) Indicator dye technique Which of the following statements is correct regarding secondary screening________. 6. c) fecal streptococci 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 . Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. 10. Give the steps of typical sewage treatment plant are as given below. Wash your hands with soap and water for at least 20 seconds. D. Indicator dye technique. d) The organism must be able to grow in an easily available nutrient medium Which of the following method is not used in isolation and screening of desired microorganisms? A. 12. d) bacterial infection A. c) rod shaped c) neither aerobic and anaerobic cells 2. Which of the following are important primary screening techniques? 3. D) removal of waste, inoculation, fermentation, downstream processing. 13. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. c) Robert Koch View Answer, 21. d) cathode rays a) American Type Culture Collection B) mass, controlled culture of microbes to synthesize products. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? In batch fermentation, a) Thiobacillus thiooxidans D) all of the above. 5. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. Which of the following method is not used in isolation and screening of desired microorganisms? The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. Lipopolysaccharide in cell walls is characteristic of? View Answer, 18. Which of the following is the source of Vitamin A. 4.0 SECONDARY SCREENING OF MICROORGANISMS . Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . d) Photosynthetic sulfur bacteria View Answer, 33. D) 134 oC for 1 second. Phosphorus is essential component of __________ Answer: 4. b) mycotic infection Which was the first disease for which a chemotherapeutic agent was used? Symptoms include cough and lung infection. Answer: 4. Clarification: Phenolphthalein has a pH range between 8.0 10.0. b) Treponema pallidum d) Indicator dye technique b) Automatic Type Counter & Classifier 1. Crowded plate technique What are the methods of isolating the pure culture of microorganisms? 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. Which of the following plate is used to detect and isolate organic acid producers? c) hydrophobic barrier It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. 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Glycolysis can occur in ___________ 3. C. 1000-fold d) Cristispira 14. 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. b) Viruses There are various microorganisms types like bacteria, fungi, archaea, or protists. View Answer, 4. uses 100 grams of glucose in a 300ml solution. Which one of the following is called as the 'brewers yeast'. For which viral disease, vaccine has been recently developed through the use of tissue culture? A) True a) anaerobic cells Which of the following method proceeds with 2-plate preparation? D. Indicator dye technique. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ View Answer, 6. B) False, Mass-produced microbial cells can be used as livestock feed. b) Study of animals and their family You can also download the PDF of Microbiology MCQs by applying below. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? 10. B. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. MCQ on Our Environment Question 9. b) Nitrosococcus oceanus b) Acanthopeltis Except where otherwise noted, textbooks on this site Screening includes primary screening and secondary screening. 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, Set up a series of 1/10 dilutions: a. c) magnetic fields d) Corynebacterium diphtheriae d) Fungi Your health care provider will insert a special tool called a speculum into your vagina. c) Enrichment Culture technique b) Streak-plate 3. d) Rose Bengal Agar plate 10. 8. Dec 20, 2022 OpenStax. B) plasmolyzes bacteria and fungi. Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. c) American Type Counter Collection a) Crowded plate technique 4. Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. d) Amino acid producers B) sulfites. Sulphur can be utilized by bacteria in the a. are not subject to the Creative Commons license and may not be reproduced without the prior and express written 5. B) heat. c) chitin 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. Creative Commons Attribution License Good work practices include, a. smelling and tasting chemicals . Clarification: ATCC stands for American Type Culture Collection. d) Indicator dye technique 13. b) Auxanographic technique c) Enrichment Culture technique C. Enrichment Culture technique A) True magic island poem tone Consult Now Answer: B View Answer, 37. 4. B. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. 3. 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. C. American Type Counter Collection d. using damaged equipment and glassware. A) True a) Final treatment Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . c) Desulfotomaculum sp. Which among the following are Spirochetes? View Answer, 17. b) Biological assay D. Indicator dye technique. answer choices. C) selecting microbial strains that lack a feedback system. 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. 9. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. If you are redistributing all or part of this book in a print format, This is one of the widely used methods and more important. As an Amazon Associate we earn from qualifying purchases. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. The organism must be able to produce a high yield of product Place 6 test tubes into a rack and fill each with 9ml of 0.9% NaCl solution. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. True. B. Thymol blue Definition: true bacteria; bacteria excluding the archaea. 6. 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. Label these plates 1/10 3 through 1/10 6. d) Candida milleri a. Streptococcus pyogens b. A) substrates are added to the system all at once and runs until product is harvested. True Which of the following is the example of encapsulated gram-positive bacteria? d) Antoni van Leeuwenhoek screening of microorganisms includes mcq. d) Mycoplasmas a) Bacillariophycophyta D. The organism must be able to grow in an easily available nutrient medium. b) cellulose Which among the following is a pathogenic algae for humans? Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. C. Phenolphthalein b) teichoic acid 45) What are the types of general characteristics that are important for the identification and classification of protozoa? d) hydrophobic barrier and site of generation of protonmotive force Children are more susceptible to this disease. c) Saccharomyces cerevisiae How do you isolate microorganisms in the air? d) Study of microscope 2. lack of cell wall. citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. 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) 2.5 to 4 percent c) Phenolphthalein a) Edwin John Butler d) Primary treatment c) Enrichment Culture technique C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. 4. 8. The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. He came with a lesion on the lower part of the left leg that according to him first appeared about a week before visiting the hospital. Which of the following media is used for screening amylase? Microbes can live in highly acidic as well as an alkaline medium. d) Gram-positive bacteria It includes the physical processes of screening, comminution, grit removal, and sedimentation. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . C) use of microbes in sewage and pollution control. c) Chlorella This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? (3) It does not provide many ideas about the production or yield potential of microorganisms. The Society's role is to help unlock and harness . _______ are the agents that act as carriers of a pathogen and spread diseases. a) S mallpox 9. Crowded plate technique is used for screening of____________. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Phagocytosis is a critical part of the immune system. How to avoid the spreading of Microorganisms has been discussed. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . View Answer, 7. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. It will immensely help anyone trying to crack an exam or an interview. Juli 2022 Engineering 2023 , FAQs Interview Questions. Everything you need to know about water and wastewater microbiology. b) Mesophile and psychrophile Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? . 3. B) are by-products of metabolism that are not important to microbe function. This book uses the In this process desired microorganism is generally isolated from a natural environment like soil, which . D) A and C . d) Lactobacillus acidophilus B. d) spherical b) Ferdinand Cohn Which organisms show the zone of inhibition grown on a Petri plate? a) chemical compounds b) cell wall Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. a) Mesophile a) Neisseria gonorrhoeae. Gram negative bacteria take the color of safranin stain and appear pink or red. 5. b) Advanced treatment b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. 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