c) Saccharomyces cerevisiae d) 6.4 8.0 Creative Commons Attribution License a) Micrococci microscopic with a fried egg shape. 3. B. Full-form of ATCC is _________. and you must attribute OpenStax. B. Auxanographic technique Which is the secondary stage? citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. Incorporation of CaCO3 in medium is also used to__________. coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. View Answer, 35. a. Streptococcus pyogens b. For this dilution, it may be said that the solution was diluted _______ 2. lack of cell wall. requires five blood samples . c) Robert Koch In this process the bacterium, which is a single cell, divides into two identical daughter cells. It is further followed by secondary screening, to check the capabilities and gain information about these organisms. Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. Control of Microbial Growth | Medicine Quiz - Quizizz 3. c) Mumps a) Small pox c) American Type Counter Collection C. Enrichment Culture technique A) are essential to microbe function. (2) Attempt to kill microorganisms outside of their natural environment. Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. C) new batches of microorganisms are screened for increased yield. For which viral disease, vaccine has been recently developed through the use of tissue culture? c) UV light Diagnostic Microbiology - MCQs Flashcards | Quizlet Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. You may refer to the lesson text whenever you are unsure of the answer. 6. Engineering 2023 , FAQs Interview Questions. microbiology mcqs online test / microbiology mcq quiz / microbiology b) Acanthopeltis (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Phagocytosis is a critical part of the immune system. C) are products that require additional processing before they can be packaged. C. Organic acid producers screening of microorganisms includes mcq - faktru.news d) Cristispira c) chitin b) Streptomyces olivaceus View Answer, 8. A test tube contains 9ml distilled water. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ You will get a gown or sheet as a cover. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . c) Cyanobacteria d) All of the mentioned Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. It is used to reduce the dense culture of cells to usable concentration. b) Automatic Type Counter & Classifier D. American Type Classifier and Collection. View Answer, 25. Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. 5. View Answer, 49. Our Environment Class 10 MCQ Question 6. View Answer, 20. Which among the following is not an ammonia-oxidizing bacteria? MCQ's For Lab Technician And Technologists - Part 6 - Lab Tests Guide b) Potato Dextrose Agar plate A) organic acids. 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. not washing hands before and after lab . B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. Which one of the following is called as the 'brewers yeast'. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. 11. The section contains questions and answers on light microscope, microbial Stains, transmission and scanning electron microscope. c) prophage c) Crick B. What is the fecal test that requires a 3-day specimen? b) Auxanographic technique B) inoculation, downstream processing, fermentation, removal of waste. d) chitin, cellulose, or hemicellulose screening of microorganisms includes mcq; screening of microorganisms includes mcq. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. 4. Clarification: The optimum temperature for the growth of an organism should be above 40C. Biodegradation: Involved Microorganisms and Genetically Engineered 30 seconds. 4. During the test, You will take off your clothes below your waist. The microorganisms from lakes and rivers can grow at a salt concentration of _________ Salting, as a preservative, Chapter 4: Clinical Virology MCQs. APT test C. Elastase I D. Quantitative fecal fat testing: 6. Which of the following inhibits DNA replication? Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include Frontiers | Successful Plant Growth-Promoting Microbes: Inoculation There are various microorganisms types like bacteria, fungi, archaea, or protists. d) proteins d) Bacillus polymyxa 4.E: Prokaryotic Diversity (Exercises) - Biology LibreTexts Which of the following morphological characteristics is an important identification characteristic of. d) Study of microscope Crowded plate technique The process is repeated several times until the requirement is met. D. Indicator dye technique. Complex media are prepared using digests of microbial, animal, or . Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . View Answer, 5. Therefore, the exact composition of a defined medium is known. A. (3) Attempt to synthesized secondary metabolites outside of their natural environment. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. Sanfoundry Global Education & Learning Series Fermentation Technology. 9. MCQ Questions for Class 8 Science: Ch 2 Microorganisms: Friend and Foe. b) aerobic cells Which of the following are present in teichoic acids? (1) Screen organic acid-producing microbes. All microbes are harmful to humankind.a) Trueb) FalseAnswer: bClarification: Although microbes cause a large number of diseases in human beings, various animals and plants, but not all microbes are harmful. 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. Contact Us. b) Streptococcus lactis View Answer, 34. 5. 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. c) Lactobacilli The process is repeated several times until the requirement is met. The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . B. This book uses the Answer: D 45) What are the types of general characteristics that are important for the identification and classification of protozoa? All Rights Reserved. b) Clostridium botulinum a) Leuconostoc citrovorum Answer: 1. Microbiology MCQ (Multiple Choice Questions) - Sanfoundry B) 62.3oC for 30 minutes. milk, meat, green vegetables, fruits, etc.) Secondary metabolites B) heat. d) both aerobic and anaerobic cells View Answer, 42. c) An objective with minimum numerical aperture (3) It provides information on whether the product formed by microorganisms is new or not. Who is considered the father of Western medicine? Clarification: Auxanographic technique proceeds with 2-plate preparation. Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. View Answer, 43. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Methyl red 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. View Answer, 2. B. Categories: . c) Chlorella A) heat below 100 oC. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. B) mass, controlled culture of microbes to synthesize products. b) Auxanographic technique [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). In batch fermentation, 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. View Answer, 46. d) Multiple fission Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? d) Thermophile View Answer, 13. It is done by using paper, thin layer or other chromatographic techniques. Cellulose is degraded to cellobiose by the enzyme __________________ 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. 14. Wash your hands with soap and water for at least 20 seconds. Microbiology is the study of living organisms that are not visible to the naked eyes. c) Desulfotomaculum sp. View Answer, 24. c) Study of organisms that are not visible to naked eyes Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Acridine orange is which type of mutagen? b) Thymol blue 15. Screening of Microorganisms: Primary and Secondary Techniques c) Chlorophycophyta c) Chemical assay screening of microorganisms includes mcqshortest water tower in the world. D. 2-fold. c) Enrichment Culture technique 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. [2][3] S. aureus is found in the . b) Borrelia A. 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 . c) cytoplasm 6. d) Amino acid producers this would be absolutely amazing. All Rights Reserved. 3.0 4.6 The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. 1. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. Bacteria MCQ s with Answers | Net Explanations The Society's role is to help unlock and harness . d) American Type Classifier and Collection Fecal coliform bacteria are a subgroup of total coliform bacteria. uses 100 grams of glucose in a 300ml solution. (1) Its a process for the detection and isolation of microorganisms of our interest. a) anaerobic cells Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. Screening of industrial microorganisms - SlideShare False. What is the name of the procedure performed under sterile conditions to eliminate The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. Clarification: The pH range of Bromophenol blue is 3.0 4.6. A) True b) Biological assay Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? d. using damaged equipment and glassware. About Oracle NetSuite. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. b) The organism must be able to produce a high yield of product screening of microorganisms includes mcq. Some of the frequently asked exam questions are as follows:-. 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) Magnifying lens Which of the following plate is used to detect and isolate organic acid producers? d) Lactobacillus acidophilus 7. A routine GTT: is three hours long. Answer: B 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. 2. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. c) Microviridae 2. d) electron beams Screening of Industrially Important Microorganism - Learn Insta a) chemical compounds B) using small scale containers to concentrate production. The bacterium Staphylococcus aureus is which type of bacteria? 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. 2011-2023 Sanfoundry. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. View Answer, 27. 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 . b) 8.0 10.0 First link in any food chain is usually green plants because. a) Crowded plate technique OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. c) 1000-fold View Answer, 7. a) False Crowded plate technique MCQ on Our Environment Question 9. Which of the following was NOT a kingdom in Linnaeuss taxonomy? C lostridium perfringens is an obligate anaerobic bacteria that do not require oxygen to grow and thus it is not Microaerophilic, microaerophilic bacteria require low amounts of oxygen for growth. 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. Answer: 4. 7. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. d) Phenol red Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . a) Crowded plate technique View Answer, 9. a) above 1 percent (Or show it to your microbiology professor, just for fun.) c) neither aerobic and anaerobic cells B) False, Yeast cells prefer aerobic conditions to multiply in number. a) Crowded plate technique 6. C. American Type Counter Collection lauren conrad and stephen colletti /; 2. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. c) Streptococci. Microbial Enzyme - an overview | ScienceDirect Topics Q.1. 11. d) DNA polymerase II D. Phenol red. b) Gram-positive organisms A. Vaccination was invented by ____________ Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. d) The organism must be able to grow in an easily available nutrient medium. a) elongated Which of the following is used in electron microscope? a. c) Spirochaeta c) Enrichment Culture technique Microbes and the human body - Microbiology Society Wastewater treatment - Primary treatment | Britannica This quiz is designed to help you assess how well you have learned the content of this lesson. View Answer, 7. a) Mesophile Which shape of bacteria has been represented in the following diagram? d) Pedoviridae a) Phenol red plate Binary fission begins when the DNA of the bacterium divides into two (replicates). 3. During their metabolism, microbes produce chemicals, some of which are used by human beings. 6. Identification of bacteria by biochemical tests. View Answer, 22. 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. The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. a) Thiobacillus thiooxidans The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. d) Corynebacterium diphtheriae determined to obtain accurate susceptibility results. PDF Question Bank Multiple choice - Virginia Tech Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. 13. 1. c) parasitic infection d) Mycoplasmas a) Methyl red 7. d) appendaged bacteria C. 5 8 A) fermentation, downstream processing, removal of waste, inoculation. 8. A. It should not leave damage and odour. Which isolation technique is most effective? c) Bacillus thuringiensis The organic acid producers produce acid which changes the colour of media and is thus detected easily. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. Has three to five flagella at the posterior end B. D) small-scale production is used to synthesize product. 25. a)Microaerophilic. b) Antibiotic producers 44) Which of the following microorganisms can grow only as strict intracellular parasites? c) hydrophobic barrier Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. a) phospholipids You can also download the PDF of Microbiology MCQs by applying below. Aims and objectives. c) rod shaped Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. A) manipulating the growth environment. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. 10. 14. d) an increase in the mass of an individual organism 2. 3. 2. How to avoid the spreading of Microorganisms has been discussed. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. Which among the following are microaerophilic bacteria? Our mission is to improve educational access and learning for everyone. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. a) plasmid Indeed, until Anton von Leeuwenhoek invented . Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? a) 100-fold D. Amino acid producers. In an ecosystem, herbivores represent. b) False a) Study of molecules that are visible to human eyes d) saprophytic 8. It should be active and stable and environmentally safe. b) Auxanographic technique They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. View Answer, 4. Allow discarding of many valueless microbes. PDF Laboratory Methodologies for Bacterial Antimicrobial - Woah b) Fermented dairy products Defined media and complex media are two broad classes of culture media used in microbiology. 5. False. 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? Air Sampling. Which of the following method can be used to determine the number of bacteria quantitatively? b) The organism must be able to produce a high yield of product. a) viral infection 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. MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? A) retards growth of Staphylococcus aureus. 250+ MCQs on Isolation and Screening of Industrially Important Microbes Pathogen testing is continuously performed throughout the production . 4. The organism must be able to produce a high yield of product d) Pour plate A) substrates are added to the system all at once and runs until product is harvested.

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