2. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. View Answer, 13. B. 13. This is one of the widely used methods and more important. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. Full-form of ATCC is _________. A test tube contains 9ml distilled water. Which of the following is the most accurate method for microbial assay of antibiotics? D) all of the above. The section contains multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. b) Monotrichous Which of the following microorganism is eliminated in canned foods? C. Enrichment Culture technique 4. View Answer, 3. a) 3.0 4.6 37) Which of the following is the selective media used for the cultivation and isolation of. 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. B. Auxanographic technique Microorganisms Class 8 Science Chapter 2 as per NCERT Book used in CBSE and other Schools. b) 10-fold A) organic acids. C. Enrichment Culture technique Name three reserve materials synthesized by microorganisms and note which microbial groups B. Auxanographic technique Creative Commons Attribution License View Answer, 2. The section contains questions and answers on diseases caused by staphylococcus, streptococcus, corynebacterium, aerobic and anaerobic gram, viruses containing single and double stranded dna. b) False Done in one or few steps. We recommend using a a) False The organism must be able to produce a high yield of product Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? False. C) maintain a high osmotic pressure to kill microorganisms. The microorganisms are chosen based on the rest three criteria. What are the cell wall structural components of fungi? a) site of generation of protonmotive force a) Treponema In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b The colour of plate changes from red to yellow in the zone of organisms producing organic acid. a) Killing all microorganisms. a) Regeneration 11. View Answer, 47. a) Crowded plate technique 9. View Answer, 7. a) above 1 percent Microbiology is the study of living organisms that are not visible to the naked eyes. View Answer, 50. Cryptococcosis is a disease of ________________ What is required for proper isolation of microorganisms? b) vitamins 5. Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. Phosphorus is essential component of __________ b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. 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. c) Peritrichous 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. microscopic with a fried egg shape. For this dilution, it may be said that the solution was diluted _______ 6. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. D) small-scale production is used to synthesize product. The respiratory chain of bacteria is associated with the _____________ a) Algae View Answer, 4. a) Phenol red plate 3. 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? d) Rose Bengal Agar plate 5. c) Spirillum volutans A) True It is further followed by secondary screening, to check the capabilities and gain information about these organisms. 38) All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, b) Used for the culture of common fastidious bacteria, c) It is used for the culture of hemolytic bacteria. b) Fermented dairy products 9. Answer: B d) chitin, cellulose, or hemicellulose Which of the following method is used for the isolation of mutants? d) Study of microscope Aims and objectives. B. c) holozoic B. Auxanographic technique [2] The term for organisms that retain the . b. Litmus milk test: When bacteria is grown in this medium, there may be the production of acids or alkali or even no change in pH. Which of the following method can be used to determine the number of bacteria quantitatively? c) MacConkeys Agar plate Primary treatment removes material that will either float or readily settle out by gravity. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. c) DNA polymerase I View Answer, 20. c) chitin MCQ on Industrial Microbiology. Sugar fermentation test: Bacteria is grown in a sugar media. View Answer, 40. C) selecting microbial strains that lack a feedback system. b) cell wall Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? a) peptidoglycan d) The organism must be able to grow in an easily available nutrient medium View Answer, 49. b) Xanthophycophyta a) Nitrospina gracilis A. b) 8.0 10.0 It is a non-profit organization and a key resource for medical research. b) an increase in number of cells c) Binary fission c) prophage d) Corynebacterium diphtheriae 3. During their metabolism, microbes produce chemicals, some of which are used by human beings. 2. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. b) ribitol residues Antibiotic producing microorganisms can be detected by the method__________, 5. It is done by using paper, thin layer or other chromatographic techniques. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? b) Fungi Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. 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, Microbiology MCQ: Structure and Composition, Microbiology MCQ: Classification of Viruses, Microbiology MCQ: Virus Infection and Fatal Diseases Associated with Viruses in Animals, Microbiology MCQ: Fundamentals of Control, Microbiology MCQ: Characteristics and Definition of Chemical Agents, Microbiology MCQ: Major Groups of Antimicrobial Agents, Microbiology MCQ: Evaluation of Antimicrobial Chemical Agents, Microbiology MCQ: Historical Highlights of Chemotherapy, Microbiology MCQ: Antibiotics and their Mode of Action, Microbiology MCQ: Microbiological Assay of Antibiotics, Antifungal, Antiviral and Antitumour Antibiotics, Microbiology MCQ: Interactions Among Soil Microorganisms, Microbiology MCQ: The Carbon Cycle & Sulphur Cycle, Microbiology MCQ: The Aquatic Environment, Microbiology MCQ: Distribution and Techniques for the Study of Aquatic Microorganisms, Microbiology MCQ: Productivity of Aquatic Microorganisms, Microbiology MCQ: Determining Sanitary Quality of Water, Microbiology 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.

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