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. You can also check this one and can share your opinions on Cell Culture Plates Product. It is important to find and resolve the source of the contamination. b) Treponema pallidum The organic acid producers produce acid which changes the colour of media and is thus detected easily. What is the approximate size of the bacterial cell? 1. 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. b) Automatic Type Counter & Classifier d) Fungi D. Phenol red. a) True A. C. MacConkeys Agar plate Which isolation technique is most effective? d) Candida milleri c) Mycobacterium tuberculosis a) The organism must be genetically stable It belongs to the phthalein family that is employed as an acid-base indicator. A) True A) True Bacteria | What is microbiology? | Microbiology Society View Answer, 23. Fermentation Technology Interview Questions and Answers - Sanfoundry View Answer, 2. Who is known as the father of Microbiology? B. Clarification: Hanging drop technique is used for motility testing of bacteria. a) phospholipids Answer: B Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Our members have a unique depth and breadth of knowledge about the discipline. How do you isolate microorganisms from the soil? D. Indicator dye technique. View Answer, 49. a) fats All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. d) American Type Classifier and Collection 2. screening of microorganisms includes mcq - faktru.news this would be absolutely amazing. Answer: B In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b 1. a) Vibrio cholerae a) Micrococci Eubacteria - Definition and Examples - Biology Online Dictionary Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. c) Nitrosomonas europaea d) gene Biodegradation: Involved Microorganisms and Genetically Engineered Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? Rhizobium bacteria. MCQ's For Lab Technician And Technologists - Part 6 - Lab Tests Guide Background F. Environmental Sampling - Centers for Disease Control and 3. 3. Who was the first to observe "animalcules" under the microscope? Which organisms show the zone of inhibition grown on a Petri plate? D. Rose Bengal Agar plate. A) heat below 100 oC. Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. 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? 8. 10. b) hexokinase milk, meat, green vegetables, fruits, etc.) c) hydrophobic barrier The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. Screening of Microorganisms MCQ with Answers - YB Study d) hydrophobic barrier and site of generation of protonmotive force It is done by using paper, thin layer or other chromatographic techniques. 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. D) are harvested during the exponential phase of growth. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. Isolation, Characterization, and Screening of Antimicrobial-Producing 7. chp 25 microbiology 211 mcq Flashcards | Quizlet b) coliforms B) are by-products of metabolism that are not important to microbe function. Microorganisms - Groups, Characteristics, Importance and Uses - VEDANTU b) Auxanographic technique d) Amino acid producers D) prevent mold. Which of the following method proceeds with 2-plate preparation? (PDF) Mcqs in microbiology | Mohammed Bilal - Academia.edu B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. View Answer, 17. b) Monotrichous ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. 4. b) False d) Malaria a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Clean and disinfect surfaces that are touched often. 2. View Answer, 13. Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. d) Photosynthetic sulfur bacteria C. Enrichment Culture technique 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. 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. B. Auxanographic technique c) The optimum temperature for the growth of an organism must be above 50C d) The organism must be able to grow in an easily available nutrient medium 6. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. a) Methyl red Air Sampling. c) Peritrichous It should not leave damage and odour. 4. Chapter 4: Clinical Virology MCQs. d) appendaged bacteria View Answer, 11. A) True Name three reserve materials synthesized by microorganisms and note which microbial groups Chapter 2: Classification of Medically important Bacteria MCQs. Methyl red Which of the following is the most accurate method for microbial assay of antibiotics? Which of the following types of mutants can be isolated using the replica plate technique? C) is used to prevent growth of halophiles. 8. c) Bacillus thuringiensis ticks and fleas. Identify bacteriophage. Which of the following plate is used to detect and isolate organic acid producers? In this process the bacterium, which is a single cell, divides into two identical daughter cells. Some of the frequently asked exam questions are as follows:-. b. not washing hands before and after lab . View Answer, 41. Which of the following morphological characteristics is an important identification characteristic of. Ch. 1 Multiple Choice - Microbiology | OpenStax 5. 14. A. Microbiology MCQ With Answers Keys. Free Download - BYJUS c) nucleotides a) 100-fold a) Cyanobacteria, Fungi and Viruses b) Clostridium botulinum d) mitochondrial membrane It should be active and stable and environmentally safe. b) an increase in number of cells a) DNA polymerase III C. 5 8 10. Which of the following is the primary screening method? Which of the following dye is colourless at acidic pH and becomes red at basic pH? b) Longest wavelength of visible light used a) American Type Culture Collection 1. View Answer, 33. Incorporation of CaCO3 in medium is also used to__________. 6. 3. A) substrates are added to the system all at once and runs until product is harvested. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Identification of bacteria by biochemical tests. C. Enrichment Culture technique For which viral disease, vaccine has been recently developed through the use of tissue culture? B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. Contact Us. Crowded plate technique View Answer, 7. C. The optimum temperature for the growth of an organism must be above 50C c) Breads Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. d) 2-fold Want to cite, share, or modify this book? Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. However, if environmental contamination can enter the system, pathogens could get in too. Self-Assessment Quiz. The screening is isolation and detection of microorganisms of interest. Wastewater treatment - Primary treatment | Britannica C) are products that require additional processing before they can be packaged. Which of the following method proceeds with 2-plate preparation? Children are more susceptible to this disease. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . B) plasmolyzes bacteria and fungi. What does a viral DNA becomes after being associated with the bacterial chromosome? Full-form of ATCC is _________ (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. Label these plates 1/10 3 through 1/10 6. The production of substances in industrial microbiology occur in the sequence: C. 1000-fold Answer: 4. c) UV light Clarification: Adenoviruses cause respiratory infections. View Answer, 3. A. Clarification: ATCC stands for American Type Culture Collection. D. American Type Classifier and Collection. 7. View Answer, 3. Engineering 2023 , FAQs Interview Questions. b. 6. A. The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. b) teichoic acid _______ are the agents that act as carriers of a pathogen and spread diseases. Clarification: The Antibiotic producers show the zone of inhibition. Phosphorus is essential component of __________ It is the organization which has the largest department of Research and Development. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. C) alcohol. B) inhibit germination of botulism spores. Enrichment culture technique was developed by_________, 16. is affected by the patient's food intake on the day of testing. b) True The respiratory chain of bacteria is associated with the _____________ Your email address will not be published. d) Corynebacterium diphtheriae About Oracle NetSuite. MCQ on Isolation, classification and Identification of microorganisms Indeed, until Anton von Leeuwenhoek invented . Categories: . d) Coliforms Microbiology is the study of : 3. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. C) use of microbes in sewage and pollution control. a) chemical compounds D. Indicator dye technique. Allow discarding of many valueless microbes. 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. c) Chemical assay Penicillin causes inhibition of Mycoplasmas. a) Gram-negative organisms Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. All Rights Reserved. View Answer, 31. It doesn't include viruses and prions because they are classified as non-living. 1. 250+ TOP MCQs on Microbes in Industrial Products-4 and Answers, 300+ TOP MCQs on Microbes in Human Welfare and Answers, 250+ TOP MCQs on Microbes in Household Products-1 and Answers, 250+ TOP MCQs on Microbes in Production of Biogas and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Sewage Treatment and Answers, 250+ TOP MCQs on Microbes in Industrial Products-1 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biocontrol Agents and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, 250+ TOP MCQs on Microbes in Bioleaching Process and Answers, 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, 300+ TOP MCQs on Bioremediation and Answers, 250+ TOP MCQs on Heat Transfer Applications Thermal Processing and Answers, 250+ TOP MCQs on Environmental Issues Water Pollution and its Control and Answers, 250+ TOP MCQs on Biotechnology Applications Ethical Issues and Answers, 250+ TOP MCQs on Hydraulic Fracturing Frac Job Design and Answers. B. Thymol blue You will get a gown or sheet as a cover. (2) Attempt to kill microorganisms outside of their natural environment. Chrysolaminarin is the reserved food of ___________________ a) plasmid d) Measles [2][3] S. aureus is found in the . 3. Microbes can live in highly acidic as well as an alkaline medium. c) Objective lens d) glucose residues A. American Type Culture Collection 9. A BV test is done in a similar way as a pelvic exam or Pap smear. Which one of the following organisms is least likely to cause this illness? C. Enrichment Culture technique View Answer, 15. You may refer to the lesson text whenever you are unsure of the answer. Crowded plate technique Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? b) Xanthophycophyta 5. Answer: C Genetic engineering is also used to improve the biodegradation . the virus must be able to lyse red blood cells. Multiple Choice. To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. A. Bacterial Culture Media: Classification, Types, Uses You will lie on your back on an exam table, with your feet in stirrups. b) Magnifying lens c) 2mm in diameter b) Gram-positive organisms The Society's role is to help unlock and harness . Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. True Viral hemagglutination assays only work with certain types of viruses because. C) sugar. View Answer, 40. View Answer, 4. c) MacConkeys Agar plate Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Which of the following are present in teichoic acids? 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. Which of the following method is used for the isolation of mutants? 10. b) Potato Dextrose Agar plate Secondary screening may be qualitative and quantitative in its approach. Each daughter cell is a clone of the parent cell. 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. C) new batches of microorganisms are screened for increased yield. and you must attribute OpenStax. In an ecosystem, herbivores represent. How to avoid the spreading of Microorganisms has been discussed. View Answer, 9. Chemical preservatives do NOT include Which of the following foods is NOT made by fermentation? Which of the following is the example of encapsulated gram-positive bacteria? 15. Which of the following method is not used in isolation and screening of desired microorganisms? d) Mycoplasmas b) mycotic infection Clarification: The optimum temperature for the growth of an organism should be above 40C. b) plaque D. Indicator dye technique. d) Thermophile The Microbiology Society has a vision and mission around which we base our strategy. 2. Who is considered the "father of Western medicine"? B. d) 2 micrometer in diameter Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. PDF Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi Answer: B 1999-2023, Rice University. 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. Which of the following is a correct usage of binomial nomenclature? The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. 13. Everything you need to know about water and wastewater microbiology. The microorganisms are chosen based on the rest three criteria. C. Enrichment Culture technique C. Organic acid producers The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. c) An objective with minimum numerical aperture Which among the following are Spirochetes? microscopic with a fried egg shape. 7: Isolation of an Antibiotic Producer from soil True. d) Rose Bengal Agar plate The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. d) Phaeophycophyta E. coli is a sub-group of the fecal coliform group. Which of the following enzyme removes the RNA primer with its 5-nuclease activity? 11. There are various microorganisms types like bacteria, fungi, archaea, or protists. 5. The screening is isolation and detection of microorganisms of interest. a) site of generation of protonmotive force Salting, as a preservative, Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: 2. A routine GTT: is three hours long. d) Nitrosovibrio tenuis The principal microorganism for yogurt is ______________________ View Answer, 34. Definition: true bacteria; bacteria excluding the archaea. C. Enrichment Culture technique screening of microorganisms includes mcq The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. 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. d) Indicator dye technique The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. b) Streptomyces olivaceus Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. Secondary screening can give information about (1) The genetic instability in microbial cultures (2) Number of products produced in a single fermentation (3) The structure of the product (4) All of the above. Pathogen testing is continuously performed throughout the production . Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. Which of the following media is used for screening amylase? 3. Principles of Epidemiology: Lesson 5 Quiz|Self-Study Course SS1978|CDC View Answer, 10. 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. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. The organism must be able to produce a high yield of product A) are among the most widely used preservatives. 11 junio, 2022. Crowded plate technique is used for screening of____________. d) Antoni van Leeuwenhoek coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. Which of the following is a family of lambda phage viruses? Antibiotic producing microorganisms can be detected by the method__________, 5. Screening includes primary screening and secondary screening. A) True View Answer, 37. 100-fold Dec 20, 2022 OpenStax. Phagocytosis is a critical part of the immune system. 5. Secondary screening may be qualitative and quantitative in its approach. Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . You can also download the PDF of Microbiology MCQs by applying below. b) False The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme 250+ TOP MCQs on Microbes and Answers 2023 - FAQs Interview Questions b) Viruses 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. Screening of Industrially Important Microorganism screening of microorganisms includes mcqshortest water tower in the world. The process is repeated several times until the requirement is met. d) Bacillus polymyxa d) saprophytic Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. B) False, Microbiology 17 immunization and immune Testi. d) Gram-positive bacteria a) Killing all microorganisms. The "flash method" or "high temperature short time" method exposes fluids to d) chitin, cellulose, or hemicellulose View Answer. 5. What is the pH range of Bromophenol blue? Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. Cryptococcosis is a disease of ________________ This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. Ch. 20 Multiple Choice - Microbiology | OpenStax
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