B) False, Yeast cells prefer aerobic conditions to multiply in number. 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 . The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. screening of microorganisms includes mcq; screening of microorganisms includes mcq. b) Rhodospirillum The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. What is required for proper isolation of microorganisms? D. Indicator dye technique. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. C. 5 8 The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . _______ are the agents that act as carriers of a pathogen and spread diseases. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. b) Longest wavelength of visible light used It changes from yellow at pH 3.0 to blue-violet at pH 4.6. Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. 9. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. 9. Answer: B c) prophage B) False, When in doubt, throw it out. d) Candida milleri b) hexokinase 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. Which of the following is NOT a criterion for the choice of an organism? a) phospholipids a) Methyl red True Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. Who was the first to observe animalcules under the microscope? 3. View Answer, 13. d) 2 micrometer in diameter 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. In screening studies, it is recommended to use non-sterile soil, test different inoculation methods and different abiotic stresses, and even select microorganisms from plants under abiotic stress. Avoid contaminated food and water. d) Thermophile (3) It does not provide many ideas about the production or yield potential of microorganisms. 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. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? c) Lactobacilli a) American Type Culture Collection (1) Its a process for the detection and isolation of microorganisms of our interest. B) False, Mass-produced microbial cells can be used as livestock feed. b) Auxanographic technique 5. Clarification: The Antibiotic producers show the zone of inhibition. The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. You will get a gown or sheet as a cover. c) Saccharomyces cerevisiae d) Coxiella burnetii This is one of the widely used methods and more important. 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. 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. A) fermentation, downstream processing, removal of waste, inoculation. You will lie on your back on an exam table, with your feet in stirrups. 6. View Answer, 17. A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. b) Corticoviridae screening of microorganisms includes mcqshortest water tower in the world. b) Viruses Crowded plate technique Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . C) alcohol. Answer: C Here are 1000 MCQs on Microbiology (Chapterwise). Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Good work practices include, a. smelling and tasting chemicals . d) Hanging Drop technique [2] The term for organisms that retain the . 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. Which of the following is the standard resource for identifying bacteria? Chapter 4: Clinical Virology MCQs. 5. c) 5 8 What is high throughput screening used for? (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . 1. a) viruses Full-form of ATCC is _________ Performance and sterility testing of media lots should also be determined and d) The organism must be able to grow in an easily available nutrient medium. requires five blood samples . d) Pour plate 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. a) Final treatment 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. The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Answer: 1. Which of the following gram positive bacteria is a strict anaerobe and can only grow in the absence of oxygen? D) removal of waste, inoculation, fermentation, downstream processing. 10. b) coliforms b) Borrelia B. Auxanographic technique Measles is a disease caused by a virus, it is spread via respiratory droplets. 100-fold d) Eyepiece lens Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. b) Auxanographic technique View Answer, 16. Gram positive bacterial cell wall takes the stain of crystal violet and appears, BIOCHEMISTRY, BIOMEDICINE & PHARMACEUTICS, Classification and identification of microorganisms, Branched Chain Amino Acid Metabolism and Maple Syrup Urine Disease, drugs for the treatment of cardiovascular diseases, MEDICAL MICROBIOLOGY gastrointestinal tract, Nosocomial infection/ hospital acquired infections, Lipid Metabolism: MCQs (Cholesterol, Triglycerides, and Other Lipids), MCQs on Sterilization and Disinfection - Decontamination, aseptic processes in laboratory and hospitals, Carbohydrate Metabolism: MCQ on Glycolysis & Gluconeogenesis. Which isolation technique is most effective? Answer: C A. 2. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. View Answer, 27. c) An objective with minimum numerical aperture View Answer. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. View Answer, 5. Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes (1) Screen organic acid-producing microbes. Salting, as a preservative, b. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. Which of the following is a prokaryotic microorganism? The Society's role is to help unlock and harness . a) Edwin John Butler C) new batches of microorganisms are screened for increased yield. A. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. chp 25 microbiology 211 mcq. 3. Butanol is obtained by fermenting molasses by. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Clarification: ATCC stands for American Type Culture Collection. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. The screening is isolation and detection of microorganisms of interest. Microorganism Definition. 6.8 - 7.2 b. In an ecosystem, herbivores represent. c) MacConkeys Agar plate In this process the bacterium, which is a single cell, divides into two identical daughter cells. 4. a) Watson Which isolation technique is most commonly used for colony isolation in the laboratory? View Answer, 33. Clarification: The Crowded Plate Technique is used for the detection and isolation of the organisms which are antibiotic producers. Answer: A 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. View Answer, 9. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. Wash your hands with soap and water for at least 20 seconds. What are the cell wall structural components of fungi? The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. 4. C. 1000-fold c) Streptococcus thermophilus a) glycerol residues A) True You can also download the PDF of Microbiology MCQs by applying below. View Answer, 4. The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. Give the steps of typical sewage treatment plant are as given below. d) intercalating agents a) The organism must be genetically stable. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Which of the following is not microbe?a) Bacteriab) Protozoac) Viroidsd) WormsAnswer: dClarification: Microbes are diverse in nature and include- protozoa, bacteria, fungi and microscopic animal and plant viruses, viroids and also prions that are proteinaceous infectious agents. d. using damaged equipment and glassware. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. It should have a fast rate of kill of micro-organisms. 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. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. Want to cite, share, or modify this book? 5. b) gamma rays a. Streptococcus pyogens b. a) Gram-negative organisms c) Pour-plate and spread plate Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? a) elongated A. B) inoculation, downstream processing, fermentation, removal of waste. c) Binary fission Sanfoundry Global Education & Learning Series Fermentation Technology. Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? b) plaque B) sulfites. B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. Answer: D A. 1. D. Amino acid producers. Which of the following method is not used in isolation and screening of desired microorganisms? c) Enrichment Culture technique c) rod shaped answer choices. 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. 4. 2. c) Breads View Answer, 15. a) Cephaleuros False. c) parasitic infection B. Some of the frequently asked exam questions are as follows:-. B) using small scale containers to concentrate production. Full-form of ATCC is _________ d) Corynebacterium diphtheriae b) Atrichous bacteria. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. c) fecal streptococci C. Phenolphthalein The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. D. Rose Bengal Agar plate. Microbiology is the study of living organisms that are not visible to the naked eyes. View Answer, 41. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. During their metabolism, microbes produce chemicals, some of which are used by human beings. c) The optimum temperature for the growth of an organism must be above 50C 10. Which is the secondary stage? C. Organic acid producers The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. The Microbiology Society has a vision and mission around which we base our strategy. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. 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. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. Our members have a unique depth and breadth of knowledge about the discipline. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. Which of the following statement is correct regarding primary screening________. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . View Answer, 43. lack of cell wall. a) False View Answer, 28. Answer: A Crowded plate technique is used for screening of____________. Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? 13. b) 10-fold Glycosylated hemoglobin: causes sickle cell anemia. B. c) nucleotides In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b Identify bacteriophage. It should be active and stable and environmentally safe. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. Answer: B View Answer. Indeed, until Anton von Leeuwenhoek invented . For this dilution, it may be said that the solution was diluted _______ 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. A. A. 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.
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