screening of microorganisms includes mcq

Phosphorus is essential component of __________ 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. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes a) Micrococci Which of the following method proceeds with 2-plate preparation? 8.0 10.0 3. c) Objective lens 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) Streptococcus lactis d) 2 micrometer in diameter A) True screening of microorganisms includes mcqshortest water tower in the world. a) parasitic It includes the physical processes of screening, comminution, grit removal, and sedimentation. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. (4) Attempt to Stain microorganisms. A. How do you isolate microorganisms from the soil? Answer: A a) Vibrio cholerae Crowded plate technique View Answer, 21. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. answer choices. Clarification: Hanging drop technique is used for motility testing of bacteria. d) glucose residues 5. C. Enrichment Culture technique a) 1mm in diameter includes 6 urine samples. Answer: 1. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. How to avoid the spreading of Microorganisms has been discussed. View Answer, 25. View Answer, 7. d) Lactobacillus acidophilus c) UV light Which of the following is a prokaryotic microorganism? microscopic with a fried egg shape. View Answer. Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Answer: A d) Study of microscope 10. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. Which of the following method proceeds with 2-plate preparation? c) Enrichment Culture technique a) Crowded plate technique The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. d) hydrophobic barrier and site of generation of protonmotive force b) The examination of the infection sites, c) They are prokaryotes in cellular organization. Which of the following plate is used to detect and isolate organic acid producers? View Answer, 5. We recommend using a The organism must be genetically stable B) 62.3oC for 30 minutes. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. View Answer, 16. the virus must be able to lyse red blood cells. Which of the following media is used for screening amylase? d) Fungi View Answer, 6. 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. 13. b) 0.5 to 1.0 micrometer in diameter The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. Growth Factor producers The microorganisms secrete the enzymes into their nutrient medium to make better use of it. Our members have a unique depth and breadth of knowledge about the discipline. d) Nitrosovibrio tenuis 1. View Answer, 2. b. not washing hands before and after lab . b) vitamins A) are essential to microbe function. B) False, When in doubt, throw it out. D. Amino acid producers. (3) It provides information on whether the product formed by microorganisms is new or not. 12. In which of the following treatment involve oxidation of organic constituents of the wastewater? a) Regeneration Full-form of ATCC is _________. 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. The principal microorganism for yogurt is ______________________ b) Longest wavelength of visible light used b) Streptomyces olivaceus 7. Which of the following statements is correct regarding secondary screening________. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. 10. c) Mycobacterium tuberculosis B) False, Microbiology 17 immunization and immune Testi. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . A routine GTT: is three hours long. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. A) organic acids. Dec 20, 2022 OpenStax. D. 6.4 8.0. Answer: C In this process desired microorganism is generally isolated from a natural environment like soil, which . A BV test is done in a similar way as a pelvic exam or Pap smear. View Answer, 42. 4. c) Enrichment Culture technique b) Potato Dextrose Agar plate It is used to reduce the dense culture of cells to usable concentration. B. Aims and objectives. Clarification: The pH range of Bromophenol blue is 3.0 4.6. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ c) Secondary treatment A) True a) Alcoholic beverages Performance and sterility testing of media lots should also be determined and 2. Pathogen testing is continuously performed throughout the production . Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. other viruses are too dangerous to work with in a clinical lab setting. 6. 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) mutualistic 15. 1. a) Mesophile is affected by the patient's food intake on the day of testing. B. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 7. a) viral infection b) Magnifying lens C. Enrichment Culture technique D. The organism must be able to grow in an easily available nutrient medium. b) aerobic cells C) selecting microbial strains that lack a feedback system. (2) Chemical, physical and biological properties of a product are also determined during secondary screening. b) Viruses 3. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. Which scientist proposed adding a kingdom for protists? Therefore, the exact composition of a defined medium is known. Yeast cells are good source of. View Answer, 2. Who is known as the father of Microbiology? Answer: D You will get a gown or sheet as a cover. View Answer, 11. (1) Its a process for the detection and isolation of microorganisms of our interest. 4. Which one of the following organisms is least likely to cause this illness? Which of the following is the most accurate method for microbial assay of antibiotics? 26. Microbes can live in highly acidic as well as an alkaline medium. a) changes in the total population View Answer, 7. A. Crowded plate technique Protozoa that eat other organisms are known as _______________ a) Algae a) Crowded plate technique Which of the following foods is NOT made by fermentation? View Answer, 11. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo View Answer, 19. B. You can also prevent infections through: Hand-washing. 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. 2. Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. Automatic Type Counter & Classifier Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. Rickettsia species are carried by. A food chain comprising birds, green plants, fish and man. View Answer, 29. a) Bacillariophycophyta 1. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. d) Amino acid producers 9. pH, cations, thymidine or thymine, use of supplemented media). c) hydrophobic barrier C. 5 8 A. American Type Culture Collection Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Contact Us. Definition: true bacteria; bacteria excluding the archaea. A test tube contains 9ml distilled water. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. (2) Attempt to kill microorganisms outside of their natural environment. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? 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. View Answer, 48. c) MacConkeys Agar plate Answer: B a) False a) Leuconostoc citrovorum uses 100 grams of glucose in a 300ml solution. 4. In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? b) light waves d) 6.4 8.0 b) Study of animals and their family a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. True d) Gram-positive bacteria How do you isolate microorganisms in the air? 2. Complex media are prepared using digests of microbial, animal, or . b) Syphilis Trophic level in an ecosystem represents. Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. The microorganisms from lakes and rivers can grow at a salt concentration of _________ All Rights Reserved. 6. D. Indicator dye technique. Which of the following is NOT a criterion for the choice of an organism? consent of Rice University. a) Thiobacillus thiooxidans This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. Microorganisms Class 8 Science Chapter 2 as per NCERT Book used in CBSE and other Schools. What is Microbiology? 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. a) Edwin John Butler C. Organic acid producers Acridine orange is which type of mutagen? The well-isolated colonies are antibiotic producers with the zone of inhibition. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? b) Jenner b) teichoic acid 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. Full-form of ATCC is _________ Growth of bacteria or microorganisms refer to __________________ Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. Screens are made of long, closely spaced, narrow metal bars. Which of the following is NOT a criterion for the choice of an organism? The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. Done in one or few steps. A) True (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. Q. Q.1: Screening of microorganisms includes . View Answer, 8. b) cell wall A. Answer: C a) The organism must be genetically stable. Crowded plate technique d) Lophotrichous C) use of microbes in sewage and pollution control. Which among the following is not an ammonia-oxidizing bacteria? c) Peritrichous D) all of the above. d) both aerobic and anaerobic cells 12. D) all of the above. Answer: C Which of the following is a correct usage of binomial nomenclature? d. using damaged equipment and glassware. Answer: 4. 11. The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. b) Corticoviridae 4. d) Prototheca It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. B. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. 3. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. The organism must be able to produce a high yield of product Which of the following is not a subfield of microbiology? During the test, You will take off your clothes below your waist. 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. 11. View Answer, 35. b) Ferdinand Cohn Crowded plate technique C. MacConkeys Agar plate Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? 2. Which among the following group of microorganisms are found in the ducts of cows mammary glands? View Answer, 12. Microorganism Definition. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. B) inoculation, downstream processing, fermentation, removal of waste. It is the organization which has the largest department of Research and Development. About Oracle NetSuite. Which of the following gram positive bacteria is a strict anaerobe and can only grow in the absence of oxygen? Enrichment culture technique was developed by_________, 16. Which was the first disease for which a chemotherapeutic agent was used? The science of using living systems to benefit humankind is called biotechnology.Technically speaking, the domestication of plants and animals through farming and breeding practices is a type of biotechnology. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? Which of the following is a type of fungal microorganism? Name three reserve materials synthesized by microorganisms and note which microbial groups Crowded plate technique a) Killing all microorganisms. D. Indicator dye technique. D. Phenol red. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. 2. a) Eremothecium ashbyi 6. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. Butanol is obtained by fermenting molasses by. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. View Answer, 40. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. 3. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. d) cellulase Secondary metabolites Microbiology MCQ. D. Indicator dye technique. A. Fecal occult blood B. The greatest resolution in light microscopy can be obtained with ___________ A. a) Chemical and biological assay c) The optimum temperature for the growth of an organism must be above 50C. Crowded plate technique In an ecosystem, herbivores represent. Antibiotic producing microorganisms can be detected by the method__________, 5. c) 5 8 Microbiology is the study of living organisms that are not visible to the naked eyes. A microorganism is a living thing that is too small to be seen with the naked eye. b) Borrelia [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). 5. Which of the following are produced by microorganisms? A) True c) 1000-fold c) parasitic infection This book uses the It is done by using paper, thin layer or other chromatographic techniques. D. Rose Bengal Agar plate. C) inoculation, fermentation, downstream processing, removal of waste. C. Enrichment Culture technique 8. Our mission is to improve educational access and learning for everyone. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. You will lie on your back on an exam table, with your feet in stirrups. The bacterium Staphylococcus aureus is which type of bacteria? Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. View Answer, 34. Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. 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. c) ribitol or glycerol residues b) below 1 percent C. Enrichment Culture technique B. Auxanographic technique c) chitin 2011-2023 Sanfoundry. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. Which of the following types of microorganisms is photosynthetic? 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? Defined media and complex media are two broad classes of culture media used in microbiology. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. Measles is a disease caused by a virus, it is spread via respiratory droplets. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. B) False, Pasteurization is used to sterilize milk. However, if environmental contamination can enter the system, pathogens could get in too. b) Fermented dairy products Children are more susceptible to this disease. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. 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. Chemical preservatives do NOT include Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. 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 . A. Phenol red plate Viral hemagglutination assays only work with certain types of viruses because. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? The respiratory chain of bacteria is associated with the _____________ There are various microorganisms types like bacteria, fungi, archaea, or protists. Which of the following is the standard resource for identifying bacteria? The Gram staining is one of the most crucial staining techniques in microbiology. b) False c) an increase in the size of an individual organism 7. C. Enrichment Culture technique B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. a) Methyl red A) True B) inhibit germination of botulism spores. Give the steps of typical sewage treatment plant are as given below. d) Primary treatment 3. lack of cell wall. 8. A) radiation. It belongs to the phthalein family that is employed as an acid-base indicator. c) Enrichment Culture technique This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. C. Phenolphthalein d) Multiple fission 45) What are the types of general characteristics that are important for the identification and classification of protozoa? B. Auxanographic technique Clarification: Auxanographic technique proceeds with 2-plate preparation. Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. a) DNA polymerase III answer choices. True. b) transposons The reason they are called microorganisms is that you can only see them when you use a microscope. False. 2. A. What is high throughput screening used for? b) hydrophilic barrier a) Gram-negative organisms MCQ on Our Environment Question 9. View Answer, 20. A) fermentation, downstream processing, removal of waste, inoculation. 25. a)Microaerophilic. What are the methods of isolating the pure culture of microorganisms? Clarification: Phenolphthalein has a pH range between 8.0 10.0. The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . Which of the following statement is correct regarding primary screening________. These are non-enveloped viruses with a double-stranded DNA genome. On the second day, the symptoms got worse and she was taken to the hospital. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. Which of the following yeast can be used to produce microbial protein? 4. A) True The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme Answer: A View Answer, 38. 2. Which isolation technique is most commonly used for colony isolation in the laboratory? Rhizobium bacteria. View Answer, 10. What are the cell wall structural components of fungi? A) manipulating the growth environment. This quiz is designed to help you assess how well you have learned the content of this lesson. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. B. Auxanographic technique Thank you so much for sharing. Chapter 4: Clinical Virology MCQs. The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. B) False, Mass-produced microbial cells can be used as livestock feed. b) Microbacteria Avoid contaminated food and water. c) Desulfotomaculum sp. The screening is isolation and detection of microorganisms of interest. Penicillin causes inhibition of Mycoplasmas. [2] The term for organisms that retain the . b. the virus must be able to cross-link red blood cells directly. Lipopolysaccharide in cell walls is characteristic of? a) Neisseria gonorrhoeae. 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. d) bacterial infection (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. 4. b) gamma rays Which of the following statements about food chain and energy . All of the above. 1. Identification of bacteria by biochemical tests. a) Crowded plate technique