Which of the following method is useful for the detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Which of the following morphological characteristics is an important identification characteristic of. B) mass, controlled culture of microbes to synthesize products. b) ribitol residues B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. Tyrocidines are more effective against ___________________ MCQ on Our Environment Question 9. A. American Type Culture Collection 7. Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include a) Watson Give the steps of typical sewage treatment plant are as given below. the virus must be able to cross-link red blood cells directly. 3. C. Phenolphthalein 6. (1) Its a process for the detection and isolation of microorganisms of our interest. View Answer, 2. Who is known as the father of Microbiology? c) Chlorophycophyta You will lie on your back on an exam table, with your feet in stirrups. Which of the following is the source of Vitamin A. b) Rabies The screening is isolation and detection of microorganisms of interest. 8. b) transposons It is used to reduce the dense culture of cells to usable concentration. A) production of alcoholic beverages by microorganisms. A. 4.0 SECONDARY SCREENING OF MICROORGANISMS . View Answer, 49. a) Streptomyces sp. d) 6.4 8.0 b) Potato Dextrose Agar plate Auxanography technique is employed for detecting microorganisms able to produce__________. Plasmodium divides by which of the following method most commonly? View Answer. b) Mesophile and psychrophile We recommend using a B. Auxanographic technique C. Organic acid producers Answer: C This reduces the cooling costs in large scale fermenters. Crowded plate technique A) retards growth of Staphylococcus aureus. Which is the secondary stage? Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? a) Cyanobacteria, Fungi and Viruses b) Xanthophycophyta 9. b) Magnifying lens c) 2mm in diameter D) A and C . c) Cyanobacteria d) 2 micrometer in diameter Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. For this dilution, it may be said that the solution was diluted _______ The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . Biology Multiple Choice Questions on Microbes. Which isolation technique is most effective? B. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. c) Objective lens Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? d) Pour plate b) Syphilis 1. c) Phenolphthalein 3.0 4.6 membranes of microorganisms. B) are by-products of metabolism that are not important to microbe function. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. What is Microbiology? Lipopolysaccharide in cell walls is characteristic of? c) Enrichment Culture technique b) Streptomyces olivaceus answer choices. D. Phenol red. B. Clarification: Phenolphthalein has a pH range between 8.0 10.0. True a) Micrococci 6. Juli 2022 Answer: A b) teichoic acid Phagocytosis is a critical part of the immune system. b) Auxanographic technique a) glycerol residues View Answer, 50. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. 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. Answer: 4. B. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. Symptoms include cough and lung infection. C. 5 8 d) Fungi b) Fungi 30 seconds. All Rights Reserved. What is high throughput screening used for? uses 50 grams of glucose in a 500ml solution. 6. d) American Type Classifier and Collection d) The organism must be able to grow in an easily available nutrient medium. View Answer, 22. a) Alcoholic beverages Which among the following group of microorganisms are found in the ducts of cows mammary glands? View Answer, 4. C) new batches of microorganisms are screened for increased yield. c) Psychrophile Which of the following is a prokaryotic microorganism? screening of microorganisms includes mcq. 2011-2023 Sanfoundry. A routine GTT: is three hours long. Which of the following types of mutants can be isolated using the replica plate technique? 7. D) all of the above. B) False, Pasteurization is used to sterilize milk. C. Enrichment Culture technique Sugar fermentation test: Bacteria is grown in a sugar media. Q.1. View Answer, 29. View Answer, 14. Our mission is to improve educational access and learning for everyone. a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. 2. 7. [2][3] S. aureus is found in the . It includes the physical processes of screening, comminution, grit removal, and sedimentation. You can also prevent infections through: Hand-washing. 13. It doesn't include viruses and prions because they are classified as non-living. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. b) Streptococcus lactis b) Budding a) plasmid Which of the following was NOT a kingdom in Linnaeuss taxonomy? d) mitochondrial membrane C) maintain a high osmotic pressure to kill microorganisms. D. Indicator dye technique. b) cell wall View Answer, 3. A. Chrysolaminarin is the reserved food of ___________________ What is required for proper isolation of microorganisms? The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme a) Phenol red plate b) vitamins B. Auxanographic technique View Answer, 7. Crowded plate technique c) ribitol or glycerol residues 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) False You may refer to the lesson text whenever you are unsure of the answer. Rhizobium bacteria. Our Environment Class 10 MCQ Question 6. (4) This may be accomplished by paper, thin layer, chromatographic technique. d) Indicator dye technique The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? 15. a) cellulose dehydrogenase c) Streptococci. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. 2. View Answer, 27. Which of the following statements about food chain and energy . d) Photosynthetic sulfur bacteria Self-Assessment Quiz. a) Neisseria gonorrhoeae. A. Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. . c) Desulfotomaculum sp. 10. B) heat. Methyl red 15. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. c) cytoplasm Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. consent of Rice University. C) is used to prevent growth of halophiles. Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. Full-form of ATCC is _________. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? c) chitin b) below 1 percent Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. b) Gram-positive organisms It is colourless at pH 8.0 and becomes red at pH above 10.0. is affected by the patient's food intake on the day of testing. a) Small pox Good work practices include, a. smelling and tasting chemicals . b) mutualistic Definition: true bacteria; bacteria excluding the archaea. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. c) Peritrichous The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. a) DNA polymerase III a) True 12. Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. d) hydrophobic barrier and site of generation of protonmotive force Performance and sterility testing of media lots should also be determined and Which scientist proposed adding a kingdom for protists? B. View Answer, 40. 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. D. The organism must be able to grow in an easily available nutrient medium. Which of the following is the most accurate method for microbial assay of antibiotics? All of the above. What is required for proper isolation of microorganisms? Engineering 2023 , FAQs Interview Questions. APT test C. Elastase I D. Quantitative fecal fat testing: 6. False. c) An objective with minimum numerical aperture About Oracle NetSuite. 6. Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture The microorganisms from lakes and rivers can grow at a salt concentration of _________ b) cellulose You can also check this one and can share your opinions on Cell Culture Plates Product. MCQ Questions for Class 8 Science: Ch 2 Microorganisms: Friend and Foe. 6.8 - 7.2 b. The production of substances in industrial microbiology occur in the sequence: c) Study of organisms that are not visible to naked eyes answer choices. b) Microbacteria View Answer, 44. c) 1000-fold The greatest resolution in light microscopy can be obtained with ___________ Which of the following is the standard resource for identifying bacteria? Answer: C Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. d) proteins Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. A BV test is done in a similar way as a pelvic exam or Pap smear. Genetic engineering is also used to improve the biodegradation . b. A) True c) Enrichment Culture technique c) American Type Counter Collection c) DNA polymerase I Which of the following plate is used to detect and isolate organic acid producers? Label these plates 1/10 3 through 1/10 6. 100-fold Report an issue. c) hydrophobic barrier D. 2-fold. Place 6 test tubes into a rack and fill each with 9ml of 0.9% NaCl solution. C. Enrichment Culture technique Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? a) Growth Factor producers Set up a series of 1/10 dilutions: a. Which of the following is the example of encapsulated gram-positive bacteria? c) fecal streptococci The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. Answer: B Viral hemagglutination assays only work with certain types of viruses because. 3. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. a) Final treatment c) Pour-plate and spread plate A) are among the most widely used preservatives. Which microorganism(s) among the following perform photosynthesis by utilizing light? d) Eyepiece lens 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 . Butanol is obtained by fermenting molasses by. D) all of the above. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a View Answer, 23. View Answer, 37. (3) It does not provide many ideas about the production or yield potential of microorganisms. d) Mycoplasmas are licensed under a, Unique Characteristics of Prokaryotic Cells, Unique Characteristics of Eukaryotic Cells, Prokaryote Habitats, Relationships, and Microbiomes, Nonproteobacteria Gram-Negative Bacteria and Phototrophic Bacteria, Isolation, Culture, and Identification of Viruses, Using Biochemistry to Identify Microorganisms, Other Environmental Conditions that Affect Growth, Using Microbiology to Discover the Secrets of Life, Structure and Function of Cellular Genomes, How Asexual Prokaryotes Achieve Genetic Diversity, Modern Applications of Microbial Genetics, Microbes and the Tools of Genetic Engineering, Visualizing and Characterizing DNA, RNA, and Protein, Whole Genome Methods and Pharmaceutical Applications of Genetic Engineering, Using Physical Methods to Control Microorganisms, Using Chemicals to Control Microorganisms, Testing the Effectiveness of Antiseptics and Disinfectants, History of Chemotherapy and Antimicrobial Discovery, Fundamentals of Antimicrobial Chemotherapy, Testing the Effectiveness of Antimicrobials, Current Strategies for Antimicrobial Discovery, Virulence Factors of Bacterial and Viral Pathogens, Virulence Factors of Eukaryotic Pathogens, Major Histocompatibility Complexes and Antigen-Presenting Cells, Laboratory Analysis of the Immune Response, Polyclonal and Monoclonal Antibody Production, Anatomy and Normal Microbiota of the Skin and Eyes, Bacterial Infections of the Skin and Eyes, Protozoan and Helminthic Infections of the Skin and Eyes, Anatomy and Normal Microbiota of the Respiratory Tract, Bacterial Infections of the Respiratory Tract, Viral Infections of the Respiratory Tract, Anatomy and Normal Microbiota of the Urogenital Tract, Bacterial Infections of the Urinary System, Bacterial Infections of the Reproductive System, Viral Infections of the Reproductive System, Fungal Infections of the Reproductive System, Protozoan Infections of the Urogenital System, Anatomy and Normal Microbiota of the Digestive System, Microbial Diseases of the Mouth and Oral Cavity, Bacterial Infections of the Gastrointestinal Tract, Viral Infections of the Gastrointestinal Tract, Protozoan Infections of the Gastrointestinal Tract, Helminthic Infections of the Gastrointestinal Tract, Circulatory and Lymphatic System Infections, Anatomy of the Circulatory and Lymphatic Systems, Bacterial Infections of the Circulatory and Lymphatic Systems, Viral Infections of the Circulatory and Lymphatic Systems, Parasitic Infections of the Circulatory and Lymphatic Systems, Fungal and Parasitic Diseases of the Nervous System, Fundamentals of Physics and Chemistry Important to Microbiology, Taxonomy of Clinically Relevant Microorganisms, https://openstax.org/books/microbiology/pages/1-introduction, https://openstax.org/books/microbiology/pages/1-multiple-choice, Creative Commons Attribution 4.0 International License.
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