Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Crowded plate technique The process is repeated several times until the requirement is met. Through primary screening only few or many microorganism that produce a industrially . b) Biological assay View Answer, 29. Gram Staining - StatPearls - NCBI Bookshelf c) fecal streptococci d) The organism must be able to grow in an easily available nutrient medium. The organism must be genetically stable Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Required fields are marked *. View Answer, 34. B) are by-products of metabolism that are not important to microbe function. 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. 13. What is the fecal test that requires a 3-day specimen? 3. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. View Answer, 11. c) Enrichment Culture technique Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: 6. 1. Which of the following method is not used in isolation and screening of desired microorganisms? MCQ on Isolation, classification and Identification of microorganisms A 19-year-old male living in a tropical region of India visited the hospital. C) use of microbes in sewage and pollution control. 3. Who was the first to observe "animalcules" under the microscope? B. 9. Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. B. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. 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 . You can also prevent infections through: Hand-washing. d) glucose residues Which of the following morphological characteristics is an important identification characteristic of. c) The optimum temperature for the growth of an organism must be above 50C. A. a) Shortest wavelength of visible light used Our Environment Class 10 MCQ Question 6. E. coli is a sub-group of the fecal coliform group. Screening of Microorganisms MCQ with Answers - YB Study The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. c) chitin A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. c) Mycobacterium tuberculosis 4.0 SECONDARY SCREENING OF MICROORGANISMS . 37) Which of the following is the selective media used for the cultivation and isolation of. 7. b) Automatic Type Counter & Classifier a) Small pox 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. Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. c) Phenolphthalein Good work practices include, a. smelling and tasting chemicals . Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. 10. Eubacteria - Definition and Examples - Biology Online Dictionary Microbes are certainly ideal for biotechnology. d) Cristispira Which of the following method proceeds with 2-plate preparation? Self-Assessment Quiz. d) Measles Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? c) base analog Enrichment culture technique was developed by_________, 16. The Society's role is to help unlock and harness . Answer: B The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. View Answer, 12. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. Wish you the best in your endeavor to learn and master Microbiology! a) Killing all microorganisms. B. Auxanographic technique Microbiology Multiple Choice Questions and Answers (MCQs) Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. It is 50,000X magnified image of a bacterium. Performance and sterility testing of media lots should also be determined and d) Pour plate Lipopolysaccharide in cell walls is characteristic of? Answer: B a) site of generation of protonmotive force a) viruses This is one of the widely used methods and more important. D) exposure. Phosphorus is essential component of __________ 4. A) organic acids. Secondary metabolites Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. True It is important to find and resolve the source of the contamination. Automatic Type Counter & Classifier 14. 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? b) Ferdinand Cohn View Answer, 15. Bacterial Culture Media: Classification, Types, Uses Crowded plate technique c) hydrophobic barrier View Answer, 13. screening of microorganisms includes mcq - faktru.news In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? View Answer, 13. Which of the following are true for cytoplasmic membrane? The normal composition of feces includes all of the following except: A. Bacteria B. View Answer, 39. The microorganisms are chosen based on the rest three criteria. Clarification: The Crowded Plate Technique is used for the detection and isolation of the organisms which are antibiotic producers. Symptoms include cough and lung infection. b) Mesophile and psychrophile Which scientist proposed adding a kingdom for protists? The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. c) Organic acid producers screening of microorganisms includes mcq Which of the following method is not used in isolation and screening of desired microorganisms? b) Rhodospirillum OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. Microbiology is the study of : 3. It is colourless at pH 8.0 and becomes red at pH above 10.0. About Oracle NetSuite. c) American Type Counter Collection Sulphates are reduced to hydrogen sulphide by _____________________ How do you isolate microorganisms in the air? 10. chp 25 microbiology 211 mcq Flashcards | Quizlet d) Coliforms False. C) alcohol. d) Bacillus polymyxa B. Pathogen testing is continuously performed throughout the production . Which of the following microorganism is eliminated in canned foods? B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. Here are 1000 MCQs on Microbiology (Chapterwise). a) Micrococci Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . View Answer. Which of the following method is used for the isolation of mutants? Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. View Answer, 36. d) American Type Classifier and Collection d. using damaged equipment and glassware. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? b) Viruses MCQ on Industrial Microbiology - MCQ Biology.com 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) Spread-plate a) Regeneration a) x-rays a) Final treatment b) Streak-plate a) Styloviridae d) Mycoplasmas It should not leave damage and odour. c) Robert Koch screening of microorganisms includes mcqshortest water tower in the world. 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. True. (2) It determines which microorganisms can produce a compound. Which of the following is NOT a criterion for the choice of an organism? Answer: C 2. It should be active and stable and environmentally safe. 3. Measles is a disease caused by a virus, it is spread via respiratory droplets. The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. 11. a) fats milk, meat, green vegetables, fruits, etc.) Done in one or few steps. B. C. Organic acid producers Diagnostic Microbiology - MCQs Flashcards | Quizlet 30 seconds. lack of cell wall. What are the methods of isolating the pure culture of microorganisms? PDF Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi d) chitin, cellulose, or hemicellulose Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. a) Vibrio cholerae Cellulose is degraded to cellobiose by the enzyme __________________ Phagocytosis (article) | Foundation 2: Cells | Khan Academy C) is used to prevent growth of halophiles. Clean and disinfect surfaces that are touched often. Except where otherwise noted, textbooks on this site False. To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. View Answer, 33. c) Chlorophycophyta (1) It is useful in sorting microorganisms that have real commercial value. Control of Microbial Growth | Medicine Quiz - Quizizz View Answer, 4. 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. b) Potato Dextrose Agar plate Answer: B 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. Trophic level in an ecosystem represents. Clarification: The optimum temperature for the growth of an organism should be above 40C. a) Crowded plate technique Water treatment typically requires three stages to make it potable from sewage. Binary fission begins when the DNA of the bacterium divides into two (replicates). b) Budding 2011-2023 Sanfoundry. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. d) Pasteur b) mutualistic 1. Secondary screening may be qualitative and quantitative in its approach. 15. a) Phenol red plate Screening of Microorganisms: Primary and Secondary Techniques a) phospholipids Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. d) cathode rays uses 100 grams of glucose in a 300ml solution. c) Streptococcus thermophilus Bacteria | What is microbiology? | Microbiology Society d) Malaria Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. Methyl red Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? 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) Rose Bengal Agar plate False. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. d) cellulase The microorganisms secrete the enzymes into their nutrient medium to make better use of it. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. b) Atrichous bacteria. [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 statements is correct regarding secondary screening________. Crowded plate technique includes 6 urine samples. Dec 20, 2022 OpenStax. Q.1. b) Candida utilis c) Chemical assay View Answer. It is done by using paper, thin layer or other chromatographic techniques. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. A. screening of microorganisms includes mcq D. Indicator dye technique. screening of microorganisms includes mcq; screening of microorganisms includes mcq. c) Objective lens Which of the following microorganism produces dextran? b) light waves b) Auxanographic technique Which of the following types of microorganisms is photosynthetic? c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. Which of the following yeast can be used to produce microbial protein? False. Microorganisms Class 8 Notes, Question Answers - successcds 8. (2) Chemical, physical and biological properties of a product are also determined during secondary screening. Screening of Industrially Important Microorganism In this process the bacterium, which is a single cell, divides into two identical daughter cells. Which shape of bacteria has been represented in the following diagram? 5. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. b) ribitol residues The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. B) inhibit germination of botulism spores. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . a) True Penicillin causes inhibition of Mycoplasmas. d) Multiple fission For this dilution, it may be said that the solution was diluted _______ Coliform Bacteria in Drinking Water - Washington State Department of Health Microbiology is the study of living organisms that are not visible to the naked eyes. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? 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? Antibiotic producers 250+ MCQs on Isolation and Screening of Industrially Important Microbes View Answer, 43. Background F. Environmental Sampling - Centers for Disease Control and The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. a) Crowded plate technique 6. View Answer, 38. Which of the following is the primary screening method? Clarification: ATCC stands for American Type Culture Collection. D) all of the above. A) retards growth of Staphylococcus aureus. The greatest resolution in light microscopy can be obtained with ___________ b) Streptomyces olivaceus B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. b) Auxanographic technique b) plaque d) Phaeophycophyta (3) It provides information on whether the product formed by microorganisms is new or not. d) 6.4 8.0 Clarification: Phenol Red plate is used to detect and isolate organic acid producers. 1. c) Streptococci. The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . c) cytoplasm B) using small scale containers to concentrate production. c) nucleotides These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. 15. 7: Isolation of an Antibiotic Producer from soil A. The organism must be able to produce a high yield of product a) Mesophile A. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. a) False In modern plants the screens are cleaned . What is the approximate size of the bacterial cell? this would be absolutely amazing. Definition: true bacteria; bacteria excluding the archaea. Which of the following is the most accurate method for microbial assay of antibiotics? Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Principles of Epidemiology: Lesson 5 Quiz|Self-Study Course SS1978|CDC b) Acanthopeltis d) Coliform bacteria. Who was the first to observe animalcules under the microscope? Which of the following is a family of lambda phage viruses? The section contains questions and answers on biological and economic importance of algae, algae characteristics and classification, ecology and protozoa importance, protozoa characteristics, protozoa morphology and reproduction. The screening is isolation and detection of microorganisms of interest. View Answer, 4. microscopic with a fried egg shape. b) Fungi View Answer, 20. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes b) Microbacteria The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. a) elongated a) cellulose dehydrogenase View Answer, 49. 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They are present even at sites where no other life-form could possibly exist- sites such as deep inside geysers, deep in the soil, etc. c) an increase in the size of an individual organism Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. a) 100-fold Which among the following group of microorganisms are found in the ducts of cows mammary glands? A. The Quizzes about Fecal Analysis (32 tests) - MedQuizzes Which of the following are the growth morphology of the protozoa? Growth Factor producers a) Eremothecium ashbyi 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.