View Answer, 27. Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: a) Regeneration b) hydrophilic barrier C) is used to prevent growth of halophiles. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. a) Crowded plate technique View Answer, 3. PDF Laboratory Methodologies for Bacterial Antimicrobial - Woah (2) Attempt to kill microorganisms outside of their natural environment. The screening is isolation and detection of microorganisms of interest. 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? B. Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. What is the fecal test that requires a 3-day specimen? 8. View Answer, 5. C. American Type Counter Collection 5. 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. a) Treponema Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. View Answer, 50. View Answer, 14. 10. Control of Microbial Growth | Medicine Quiz - Quizizz (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 13. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo Answer: A Bacterial Vaginosis Test: MedlinePlus Medical Test Microbiology is the study of living organisms that are not visible to the naked eyes. B. A test tube contains 9ml distilled water. It is important to find and resolve the source of the contamination. c) Psychrophile Microbiology MCQ With Answers Keys. Free Download - BYJUS 10. Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. d) Indicator dye technique 3. The lesson covers the complete explanation of class 8 Chapter 2 Microorganisms.Topics covered are Introduction to Micro-organisms and microbiology, different types of Micro-organisms, Useful and Harmful Micro-organisms. a) Styloviridae C. Enrichment Culture technique It includes the physical processes of screening, comminution, grit removal, and sedimentation. 14. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Which of the following is not a subfield of microbiology? d) 6.4 8.0 The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. The colour of plate changes from red to yellow in the zone of organisms producing organic acid. c) An objective with minimum numerical aperture 1. 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. c) Chlorophycophyta What is required for proper isolation of microorganisms? d) American Type Classifier and Collection It is done by using paper, thin layer or other chromatographic techniques. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. d) DNA polymerase II Avoid contaminated food and water. View Answer, 7. 9. Screening of Industrially Important Microorganism - MCQ Questions Which of the following statement is correct regarding primary screening________. a) Streptomyces sp. 10. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. Some strains, however, can cause illness. 13. D. Indicator dye technique. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. D. Rose Bengal Agar plate. Answer: D Answer: 1. The Quizzes about Fecal Analysis (32 tests) - MedQuizzes 4. Coliform Bacteria in Drinking Water - Washington State Department of Health screening of microorganisms includes mcq d) Nitrosovibrio tenuis screening of microorganisms includes mcq - firmenchroniker.de a) parasitic A. d) Primary treatment MCQ Questions for Class 8 Science: Ch 2 Microorganisms: Friend and Foe The screening is isolation and detection of microorganisms of interest. (2) It determines which microorganisms can produce a compound. Isolation of Microorganisms MCQ Questions and Answers C. Organic acid producers c) magnetic fields View Answer, 15. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. In which of the following treatment involve oxidation of organic constituents of the wastewater? Glycolysis can occur in ___________ Question 6. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. 7. 6. 6. Clarification: The pH range of Bromophenol blue is 3.0 4.6. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. b) Fungi Our members have a unique depth and breadth of knowledge about the discipline. All of the above. Answer: 4. 2. Which of the following foods is NOT made by fermentation? d) Cristispira d) Pour plate Multiple Choice. [2][3] S. aureus is found in the . C. 1000-fold Chapter 4: Clinical Virology MCQs. 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. Children are more susceptible to this disease. 1g of soil is added to that test tube and the soil is allowed to settle down. View Answer, 49. Wash your hands with soap and water for at least 20 seconds. 7. Which of the following types of mutants can be isolated using the replica plate technique? 4. Done in one or few steps. C) sugar. What is high throughput screening used for? D. American Type Classifier and Collection. View Answer, 20. The section contains MCQs on spirochetes, negative rods, cocci, facultatively anaerobic gram, rickettsias and chlamydias, mycoplasmas, positive cocci and positive bacteria. c) Streptococci. Sulphates are reduced to hydrogen sulphide by _____________________ Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. False. 11. c) Gram-negative bacteria a) Gram-negative organisms View Answer, 38. this would be absolutely amazing. a) Nitrospina gracilis 5. c) Bacillus thuringiensis It changes from yellow at pH 3.0 to blue-violet at pH 4.6. D) exposure. 3. The Gram staining is one of the most crucial staining techniques in microbiology. 6. The microorganisms from lakes and rivers can grow at a salt concentration of _________ Clarification: Adenoviruses cause respiratory infections. Which of the following method proceeds with 2-plate preparation? 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 . 3. This reduces the cooling costs in large scale fermenters. c) Breads c) Phenolphthalein Which scientist proposed adding a kingdom for protists? Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. The following diagram represents ____________a) Plate with wormsb) Colonies of bacteria on a petri dishc) Onion root cells on a plated) Cheek cellsAnswer: bClarification: The following diagram represents colonies of bacteria on a petri dish. Microbes can live in highly acidic as well as an alkaline medium. C) new batches of microorganisms are screened for increased yield. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. a) Condenser lens A. American Type Culture Collection D. Indicator dye technique. Principles of Epidemiology: Lesson 5 Quiz|Self-Study Course SS1978|CDC It must be toxic to micro-organisms at concentrations well below the toxic thresholds of humans and higher animals so that it cannot negatively affect the animals or humans. View Answer, 14. d) Coxiella burnetii About Oracle NetSuite. Our mission is to improve educational access and learning for everyone. d) gene 7. Has three to five flagella at the posterior end B. d) appendaged bacteria d) Bacillus polymyxa Pathogen testing is continuously performed throughout the production . 6. d) Phenol red c) Enrichment Culture technique a) The organism must be genetically stable. c) Secondary treatment d) an increase in the mass of an individual organism 11. c) fecal streptococci d) glucose residues 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. Each daughter cell is a clone of the parent cell. 5. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. Which of the following plate is used to detect and isolate organic acid producers? 1. View Answer, 2. Through primary screening only few or many microorganism that produce a industrially . Which of the following gram positive bacteria is a strict anaerobe and can only grow in the absence of oxygen? Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. View Answer, 16. [2] The term for organisms that retain the . All Rights Reserved. Primary methods to prevent food spoilage do NOT include A. Sanfoundry Global Education & Learning Series Fermentation Technology. 5. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. 8. Which one of the following is called as the 'brewers yeast'. View Answer, 26. Which shape of bacteria has been represented in the following diagram? Microbial Enzyme - an overview | ScienceDirect Topics Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. View Answer, 7. View Answer, 12. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. b) cell wall screening of microorganisms includes mcq d) Physical assay pH, cations, thymidine or thymine, use of supplemented media). 6. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? A) substrates are added to the system all at once and runs until product is harvested. B. What does a viral DNA becomes after being associated with the bacterial chromosome? A. 4.E: Prokaryotic Diversity (Exercises) - Biology LibreTexts 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. A) retards growth of Staphylococcus aureus. Growth Factor producers Which of the following statements about food chain and energy . What is the approximate size of the bacterial cell? It is 50,000X magnified image of a bacterium. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. Crowded plate technique requires five blood samples . [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). Answer: A In modern plants the screens are cleaned . b) False screening of microorganisms includes mcq d) Indicator dye technique Acridine orange is which type of mutagen? d) Coliforms View Answer, 32. Easy detection of the small percentage of useful microorganism. Which of the following enzyme removes the RNA primer with its 5-nuclease activity? a) Edwin John Butler d) proteins D) are harvested during the exponential phase of growth. 5. d) Pedoviridae D. Amino acid producers. Q.1. 2. D) small-scale production is used to synthesize product. b) Atrichous bacteria. 8.0 10.0 C) are products that require additional processing before they can be packaged. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. 1. c) hydrophobic barrier d) Rose Bengal Agar plate Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. Our Environment Class 10 MCQ Question 6. Automatic Type Counter & Classifier Which of the following dye is colourless at acidic pH and becomes red at basic pH? 4. D) A and C . b) Monotrichous Plasmodium divides by which of the following method most commonly? The well-isolated colonies are antibiotic producers with the zone of inhibition. Phosphorus is essential component of __________ The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . a) Crowded plate technique Which of the following is the primary screening method? Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. 3. This is one of the widely used methods and more important. Protozoa that eat other organisms are known as _______________ B. c) Microviridae b) ribitol residues 100-fold d) Photosynthetic sulfur bacteria (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. a) Algae 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. View Answer, 15. c) Spirochaeta A. D. Hanging Drop technique. A) True Eubacteria - Definition and Examples - Biology Online Dictionary 3. 43) Which of the following methods are the most common and routine culture methods performed in the microbiology lab for the proper isolation and identification of bacteria and fungi? Air Sampling. a) viruses B. Here are 1000 MCQs on Microbiology (Chapterwise). 12. coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. d) The organism must be able to grow in an easily available nutrient medium 4. A. Fecal occult blood B. d) bacterial infection B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. Biodegradation: Involved Microorganisms and Genetically Engineered Which of the following are present in teichoic acids? Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? a) Crowded plate technique MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? View Answer, 31. lack of cell wall. (4) This may be accomplished by paper, thin layer, chromatographic technique. Give the steps of typical sewage treatment plant are as given below. B. Auxanographic technique A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. A) True View Answer, 45. 1. B. Auxanographic technique Screening of Microorganisms: Primary and Secondary Techniques Screening of Industrially Important Microorganism - Learn Insta APT test C. Elastase I D. Quantitative fecal fat testing: 6. c) Desulfotomaculum sp. MCQ on Isolation, classification and Identification of microorganisms c) 1000-fold c) Objective lens a) False c) parasitic infection It should have a fast rate of kill of micro-organisms. 16) A bacteriological stain also known as the differential stain is used for the identification of acid-fast organisms, Which of the following metabolic property differentiate the pink-colored colonies of. You can also prevent infections through: Hand-washing. B) 62.3oC for 30 minutes. What is required for proper isolation of microorganisms? c) Enrichment Culture technique It is colourless at pH 8.0 and becomes red at pH above 10.0. Which of the following dye is colourless at acidic pH and becomes red at basic pH? b) Auxanographic technique Which microorganism(s) among the following perform photosynthesis by utilizing light? Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. Which of the following is the source of Vitamin A. Microbes are certainly ideal for biotechnology. a) The organism must be genetically stable a. Streptococcus pyogens b. 5. B. Incorporation of CaCO3 in medium is also used to__________. 6. A. The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. b) RNA polymerase b) Auxanographic technique 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. 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. c) Mumps b) Antibiotic producers Label these plates 1/10 3 through 1/10 6. (1) Its a process for the detection and isolation of microorganisms of our interest. c) beta-glucosidase Screening includes primary screening and secondary screening. membranes of microorganisms. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. b) irregular Antibiotic producers c) Saccharomyces cerevisiae Which of the following method is used for the isolation of mutants? Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? Penicillin causes inhibition of Mycoplasmas. b) Nitrosococcus oceanus It doesn't include viruses and prions because they are classified as non-living. The microorganisms are chosen based on the rest three criteria. C) maintain a high osmotic pressure to kill microorganisms. (PDF) Screening for Microbes Answer: B Crowded plate technique is used for screening of____________. View Answer, 28. A. C. Enrichment Culture technique d) Measles c) nucleotides We recommend using a The microorganisms secrete the enzymes into their nutrient medium to make better use of it. Which isolation technique is most effective? This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. a) True 26. Everything you need to know about water and wastewater microbiology. Which among the following group of microorganisms are found in the ducts of cows mammary glands? View Answer, 8. d) Thermophile c) Enrichment Culture technique 1. Crowded plate technique Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. c) American Type Counter Collection Defined media and complex media are two broad classes of culture media used in microbiology. C) inoculation, fermentation, downstream processing, removal of waste. a) chemical compounds 14. Self-Assessment Quiz. All Rights Reserved. Microorganism Definition. The production of substances in industrial microbiology occur in the sequence: b) Potato Dextrose Agar plate 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. View Answer, 39. a) fats Chapter 2: Classification of Medically important Bacteria MCQs. Answer: A 15. Clarification: Auxanographic technique proceeds with 2-plate preparation. Which of the following method is not used in isolation and screening of desired microorganisms? c) Binary fission Which of the following is a prokaryotic microorganism? Which of the following was NOT a kingdom in Linnaeuss taxonomy? B) are by-products of metabolism that are not important to microbe function. A 19-year-old male living in a tropical region of India visited the hospital. The principal microorganism for yogurt is ______________________ It should be active and stable and environmentally safe. 2. What is Microbiology? Vaccination was invented by ____________ b) 8.0 10.0 screening of microorganisms includes mcq - faktru.news Which of the following morphological characteristics is an important identification characteristic of. 5. 3. Who was the first to observe "animalcules" under the microscope? 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. Which among the following are microaerophilic bacteria? C. Enrichment Culture technique Microorganisms Class 8 Science Chapter 2 as per NCERT Book used in CBSE and other Schools. Which of the following foods is NOT made by fermentation? d) Corynebacterium diphtheriae 2. 9. The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms.
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