screening of microorganisms includes mcq10 marca 2023
a) cellulose dehydrogenase It is a non-profit organization and a key resource for medical research. c) UV light You may refer to the lesson text whenever you are unsure of the answer. Our mission is to improve educational access and learning for everyone. a) phospholipids Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. 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. Therefore, the exact composition of a defined medium is known. Which isolation technique is most commonly used for colony isolation in the laboratory? 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 plate is used to detect and isolate organic acid producers? The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. Question 6. 2. Clarification: Adenoviruses cause respiratory infections. d) Gram-positive bacteria Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. 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) 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. 8. c) Spirochaeta Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. d) Coliform bacteria. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. 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. c) AIDS Prokaryotes can be found everywhere on our planet, even in the most extreme environments. It is used to reduce the dense culture of cells to usable concentration. Potato Dextrose Agar plate When examined he said the cough first started about a month ago, he said no other symptoms appeared in the first week, he complained about the loss of appetite due to which he lost some of his body weight. a) 1mm in diameter E. coli is a sub-group of the fecal coliform group. 9. It is 50,000X magnified image of a bacterium. a) Neisseria gonorrhoeae. D. 2-fold. c) MacConkeys Agar plate d) Hanging Drop technique Bacteria or other organisms used in AST testing should be from a fresh culture, ii) the composition and preparation of the agar and broth media used (e.g. 30 seconds. 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) Photosynthetic sulfur bacteria D. Indicator dye technique. 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. b) Gram-positive organisms Which of the following microorganism is eliminated in canned foods? c) Chlorophycophyta The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. C) 72 oC for 15 seconds. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. C) new batches of microorganisms are screened for increased yield. Which of the following is a correct usage of binomial nomenclature? b) plaque c) beta-glucosidase 10. a) cytoplasmic membrane Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. View Answer, 34. d) both aerobic and anaerobic cells Clarification: The optimum temperature for the growth of an organism should be above 40C. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . 4. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . 1g of soil is added to that test tube and the soil is allowed to settle down. 9. 7. b) Budding C. The optimum temperature for the growth of an organism must be above 50C It will immensely help anyone trying to crack an exam or an interview. 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. Which isolation technique is most effective? Some strains, however, can cause illness. Which of the following microorganism produces dextran? Required fields are marked *. Answer: A membranes of microorganisms. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. View Answer, 26. 37) Which of the following is the selective media used for the cultivation and isolation of. Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. a) Condenser lens d) Fungi 3. B. b) Monotrichous Want to cite, share, or modify this book? d) Cristispira 10. Crowded plate technique View Answer, 3. requires five blood samples . b) cell wall A. True. d) Coxiella burnetii Answer: D View Answer, 11. 9. View Answer, 36. B. Thymol blue Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo 6. D. American Type Classifier and Collection. Glycosylated hemoglobin: causes sickle cell anemia. Plasmodium divides by which of the following method most commonly? View Answer, 50. The colour of plate changes from red to yellow in the zone of organisms producing organic acid. Here are 1000 MCQs on Microbiology (Chapterwise), The Characterization, Classification and Identification of Microorganisms, The Microscopic Examination of Microorganisms, The Morphology and Fine Structure of Bacteria, Pure Cultures and Cultural Characteristics, Microbial Metabolism : Utilization of Energy and Biosynthesis, The Control of Microorganisms by Physical & Chemical Agents, Antibiotics and Other Chemotherapeutic Agents, Microbiology of Soil & Aquatic Microbiology, Microbiology of Domestic Water and Wastewater, Microbiology of Food, Industrial Microbiology & Bacterial Genetics, Microbial Flora of the Healthy Human Host, Host-Microbe Interactions : The Process of Infection, Microbial Agents of Disease : Bacteria & Viruses, Microbial Agents of Disease : Fungi and Protozoa, Microbiology MCQ: Major Characteristics of Microorganisms, Microbiology MCQ: Microbial Classification, Microbiology MCQ: Transmission Electron Microscope and Scanning Electron Microscope, Microbiology MCQ: The Size, Shape and Arrangement of Bacterial Cells, Microbiology MCQ: Structures External to the Cell Wall, Microbiology MCQ: Structures Internal to the Cell Wall, Microbiology MCQ: Nutritional Requirements, Microbiology MCQ: Physical Conditions Required for Growth, Microbiology MCQ: Reproduction Modes of Cell Division, Microbiology MCQ: Growth Cycle of Bacteria, Microbiology MCQ: Quantitative Measurement of Bacterial Growth, Microbiology MCQ: Cultural Characteristics, Microbiology MCQ: Some Principles of Bioenergetics, Microbiology MCQ: Energy Production by Anaerobic Processes, Microbiology MCQ: Energy Production by Aerobic Processes, Microbiology MCQ: Energy Production by Photosynthesis, Microbiology MCQ: Utilization of Energy in Nonbiosynthetic Processes, Microbiology MCQ: Utilization of Energy in Biosynthetic Processes, Microbiology MCQ: The Biosynthesis of Deoxyribonucleic Acid, Microbiology MCQ: Transcription and Translation of Genetic Information, Microbiology MCQ: The Process of Protein Synthesis, Microbiology MCQ: Aerobic Gram Negative Rods and Cocci, Microbiology MCQ: Facultatively Anaerobic Gram Negative Rods, Microbiology MCQ: Anaerobic Gram-Negative Straight, Curved and Helical Rods, Microbiology MCQ: The Rickettsias and Chlamydias, Microbiology MCQ: Endospore Forming Gram Positive Bacteria, Microbiology MCQ: Nonspore Forming Gram Positive Bacteria, Microbiology MCQ: Physiology and Cultivation of Fungi, Microbiology MCQ: Classification of Fungi, Microbiology MCQ: Some Fungi of Special Interest, Microbiology MCQ: The Biological and Economic Importance of Algae, Microbiology MCQ: Characteristics of Algae, Microbiology MCQ: Classification of Algae, Microbiology MCQ: Ecology and Importance of Protozoa, Microbiology MCQ: Reproduction of Protozoa, Microbiology MCQ: Characteristics of Some Major Groups of Protozoa, Microbiology MCQ: Morphology and Structure of Phages, Microbiology MCQ: Replication of Bacterial Viruses, Microbiology MCQ: Viruses and Vaccination, 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MCQ: Wastewater and Treatment Processes, Microbiology MCQ: Microbial Flora of Fresh Foods, Microbiology MCQ: Microorganisms and Industry, Microbiology MCQ: Industrial Uses of Bacteria, Microbiology MCQ: Industrial Uses of Yeasts, Microbiology MCQ: Industrial Uses of Molds, Microbiology MCQ: Bacterial Recombination, Microbiology MCQ: Bacterial Transformation, Microbiology MCQ: Normal Flora and the Human Host, Microbiology MCQ: Distribution and Occurrence of the Normal Flora, Microbiology MCQ: Penetration of Epithelial Cell Layers, Microbiology MCQ: Events in Infection Following Penetration, Microbiology MCQ: Microbial Virulence Factors, Microbiology MCQ: Diseases Caused by Aerobic and Anaerobic Gram Negative Rods, Microbiology MCQ: Diseases Caused by Staphylococcus, Streptococcus and Bacillus, Microbiology MCQ: Diseases Caused by Clostridium, Corynebacterium and Mycobacterium, Microbiology MCQ: Viruses Containing Single Stranded RNA, Microbiology MCQ: Viruses Containing Double Stranded DNA, Microbiology MCQ: Diseases Caused by Fungi, Microbiology MCQ: Diseases Caused by Protozoa, Microbiology MCQ: Therapeutic Drugs for Treatment of Fungal and Protozoan Diseases, Environmental Biotechnology MCQ Questions, 1000 Data Structures & Algorithms II MCQs, 50k Electronics & Communication Engg MCQs. 9. c) Enrichment Culture technique Which among the following is not an ammonia-oxidizing bacteria? View Answer, 9. A. Fecal occult blood B. Penicillin causes inhibition of Mycoplasmas. (2) Attempt to kill microorganisms outside of their natural environment. a) Final treatment What are the methods of isolating the pure culture of microorganisms? c) Objective lens 12. Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. A) heat below 100 oC. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. (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. Which of the following statements is correct regarding secondary screening________. a) True B. Auxanographic technique a) Crowded plate technique 7. b) an increase in number of cells D) 134 oC for 1 second. Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . View Answer, 7. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. Chrysolaminarin is the reserved food of ___________________ 4.1: Prokaryote Habitats, Relationships, and Microbiomes. c) 2mm in diameter Answer: B They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. d) intercalating agents 6. A) True View Answer, 5. Except where otherwise noted, textbooks on this site d) Nitrosovibrio tenuis b) Jenner d) 6.4 8.0 B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? The process is repeated several times until the requirement is met. d) 2 micrometer in diameter chp 25 microbiology 211 mcq. d) Prototheca Allow discarding of many valueless microbes. In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? A) True b) Study of animals and their family D) A and C . This is one of the widely used methods and more important. The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. Which of the following are true for cytoplasmic membrane? D) prevent mold. APT test C. Elastase I D. Quantitative fecal fat testing: 6. a) Eremothecium ashbyi c) Microviridae Which of the following is the example of encapsulated gram-positive bacteria? The normal composition of feces includes all of the following except: A. Bacteria B. View Answer, 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 . b) Rhodospirillum a) Methyl red b) Microbacteria Identification of bacteria by biochemical tests. A microorganism is a living thing that is too small to be seen with the naked eye. pH, cations, thymidine or thymine, use of supplemented media). Secondary metabolites These are non-enveloped viruses with a double-stranded DNA genome. Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. 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. 2011-2023 Sanfoundry. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. It is the organization which has the largest department of Research and Development. 7. View Answer, 9. A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. 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. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. 3. Which of the following is a type of fungal microorganism? The Gram staining is one of the most crucial staining techniques in microbiology. c) 1000-fold About Oracle NetSuite. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance.
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