Our Environment Class 10 MCQ Question 6. 9. b) False uses 100 grams of glucose in a 300ml solution. During the test, You will take off your clothes below your waist. Answer: B Measles is a disease caused by a virus, it is spread via respiratory droplets. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? membranes of microorganisms. c) Enrichment Culture technique View Answer, 46. Which of the following plate is used to detect and isolate organic acid producers? Clarification: The pH range of Bromophenol blue is 3.0 4.6. c) Enrichment Culture technique C. 1000-fold Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . c) hydrophobic barrier Growth Factor producers Which one of the following is called as the 'brewers yeast'. Report an issue. the virus must not be able to lyse red blood cells. B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture The principal microorganism for yogurt is ______________________ a) 3.0 4.6 View Answer, 23. D) all of the above. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. B) inhibit germination of botulism spores. c) Robert Koch (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 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. View Answer, 5. 4. Performance and sterility testing of media lots should also be determined and View Answer, 12. View Answer, 2. a) peptidoglycan Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. Primary treatment removes material that will either float or readily settle out by gravity. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. Which of the following method is not used in isolation and screening of desired microorganisms? c) Organic acid producers b) Viruses d) Mycoplasmas Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. a) anaerobic cells Want to cite, share, or modify this book? Microbes are only present in hot and humid areas.a) Trueb) FalseAnswer: bClarification: Microbes occur everywhere- in soil, water, air, inside our bodies and that of other animals and plants. View Answer, 11. then you must include on every physical page the following attribution: If you are redistributing all or part of this book in a digital format, 11. 1g of soil is added to that test tube and the soil is allowed to settle down. d) Measles 3. The "flash method" or "high temperature short time" method exposes fluids to Methyl red 25. a)Microaerophilic. a) Leuconostoc citrovorum It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. Detrimental effects of microorganisms in food include, Fermentation of grains usually results in production of, During malting, barley and other grains are broken down by, Milk fermentation to produce cheese is done initially by inoculating with, Pickles and sauerkraut share a common inoculum, which is. 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. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. B) heat. 2. b) Streptococcus lactis Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. a) Methyl red B) sulfites. d) American Type Classifier and Collection 5. Except where otherwise noted, textbooks on this site D. 6.4 8.0. 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. b) Auxanographic technique A test tube contains 9ml distilled water. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. View Answer, 29. Which of the following yeast can be used to produce microbial protein? a) Thiobacillus thiooxidans 4. View Answer, 4. The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. In batch fermentation, View Answer, 43. B) 62.3oC for 30 minutes. Answer: B It should have a fast rate of kill of micro-organisms. Definition: true bacteria; bacteria excluding the archaea. D. Rose Bengal Agar plate. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. d) Pasteur The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. Prokaryotes are unicellular microorganisms whose cells have no nucleus. d) Coliforms magic island poem tone Consult Now Crowded plate technique Secondary metabolites Auxanography technique is employed for detecting microorganisms able to produce__________. 10. 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? A 19-year-old male living in a tropical region of India visited the hospital. Which of the following was NOT a kingdom in Linnaeuss taxonomy? C) alcohol. A 7 year old girl developed a sore throat and fever for 2 days. 3. c) Enrichment Culture technique E. coli is a sub-group of the fecal coliform group. determined to obtain accurate susceptibility results. and you must attribute OpenStax. Which of the following plate is used to detect and isolate organic acid producers? B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. 6. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. a) Vibrio cholerae View Answer. (4) This may be accomplished by paper, thin layer, chromatographic technique. Air Sampling. It is done by using paper, thin layer or other chromatographic techniques. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. a) Shortest wavelength of visible light used Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. 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. Which of the following dye is colourless at acidic pH and becomes red at basic pH? b) False View Answer, 39. A) substrates are added to the system all at once and runs until product is harvested. A) are essential to microbe function. 5. b) 8.0 10.0 View Answer, 41. A) True 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 section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. These are non-enveloped viruses with a double-stranded DNA genome. then you must include on every digital page view the following attribution: Use the information below to generate a citation. Each daughter cell is a clone of the parent cell. View Answer, 30. a) Crowded plate technique Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. d) bacterial infection a) Algae Crowded plate technique d) 2 micrometer in diameter d) The organism must be able to grow in an easily available nutrient medium. View Answer, 44. a) parasitic What is the pH range of Bromophenol blue? a) Crowded plate technique Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. Identification of bacteria by biochemical tests. b) Nitrosococcus oceanus D. American Type Classifier and Collection. 15. c) Lactobacilli MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? b) Auxanographic technique D. Indicator dye technique. 2. Who is considered the "father of Western medicine"? 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. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. It is important to find and resolve the source of the contamination. A. As an Amazon Associate we earn from qualifying purchases. a) Growth Factor producers Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . A) radiation. View Answer. 3. a) Treponema A. C) selecting microbial strains that lack a feedback system. Which of the following are true for cytoplasmic membrane? (3) Attempt to synthesized secondary metabolites outside of their natural environment. Enrichment culture technique was developed by_________, 16. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? b) Auxanographic technique 5. c) Streptococcus thermophilus 12. c) Microviridae 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. d) Gram-positive bacteria A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. True. answer choices. a) 1mm in diameter C. Enrichment Culture technique Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? 1. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes Water treatment typically requires three stages to make it potable from sewage. B) are by-products of metabolism that are not important to microbe function. Which organisms show the zone of inhibition grown on a Petri plate? Clarification: Phenol Red plate is used to detect and isolate organic acid producers. a. Streptococcus pyogens b. A. View Answer, 14. View Answer, 10. c) Breads You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? c) Binary fission b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. False. To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. 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. a) Streptomyces sp. b) True The bacterium Staphylococcus aureus is which type of bacteria? a) Small pox Which of the following is NOT a criterion for the choice of an organism? View Answer, 10. 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. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. A. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. False. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? b) Magnifying lens b) cellulose A. c) fecal streptococci The screening is isolation and detection of microorganisms of interest. c) Saccharomyces cerevisiae The reason they are called microorganisms is that you can only see them when you use a microscope. Automatic Type Counter & Classifier d) Prototheca Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? c) carbohydrates 3. View Answer, 35. View Answer, 15. Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Which shape of bacteria has been represented in the following diagram? d) Fungi Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. c) 5 8 Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. 10-fold D. Indicator dye technique. b) plaque View Answer, 20. Crowded plate technique A) True A) True Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ 8. 7. 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 . d) intercalating agents b. not washing hands before and after lab . d) Hanging Drop technique other viruses are too dangerous to work with in a clinical lab setting. View Answer, 15. 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? 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. 4. 15. b) Auxanographic technique milk, meat, green vegetables, fruits, etc.) c) Enrichment Culture technique microscopic with a fried egg shape. 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. a) glycerol residues Therefore, the exact composition of a defined medium is known. View Answer, 13. a) Micrococci The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. About Oracle NetSuite. d) appendaged bacteria 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. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. a) Lactobacillus d) Bacillus polymyxa View Answer, 6. Chapter 2: Classification of Medically important Bacteria MCQs. The microorganisms are chosen based on the rest three criteria. 13. Binary fission begins when the DNA of the bacterium divides into two (replicates). the virus must be able to lyse red blood cells. Chapter 4: Clinical Virology MCQs. Which of the following is a type of fungal microorganism? d) All of the mentioned Glycosylated hemoglobin: causes sickle cell anemia. Indeed, until Anton von Leeuwenhoek invented . a) Mesophile a) viral infection C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Some of the frequently asked exam questions are as follows:-. b) Longest wavelength of visible light used Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. Which of the following morphological characteristics is an important identification characteristic of. C) is used to prevent growth of halophiles. 6.8 - 7.2 b. During their metabolism, microbes produce chemicals, some of which are used by human beings. This is one of the widely used methods and more important. A. c) Enrichment Culture technique Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. Answer: 1. Which of the following method is not used in isolation and screening of desired microorganisms? 4. Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. View Answer, 7. What is Microbiology? d) Indicator dye technique Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. Required fields are marked *. b) aerobic cells c) The optimum temperature for the growth of an organism must be above 50C 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. Chemical preservatives do NOT include a) Alcoholic beverages Which of the following microorganism produces dextran? d) electron beams a. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. screening of microorganisms includes mcq; screening of microorganisms includes mcq. B. Screens are made of long, closely spaced, narrow metal bars. C. American Type Counter Collection c) Mycobacterium tuberculosis A) retards growth of Staphylococcus aureus. Answer: A 9. d) Antoni van Leeuwenhoek 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? a) True You will get a gown or sheet as a cover. chipotle corporate phone number . A) production of alcoholic beverages by microorganisms. 3. Which among the following group of microorganisms are found in the ducts of cows mammary glands? 5. b) hydrophilic barrier (1) Its a process for the detection and isolation of microorganisms of our interest. this would be absolutely amazing. C) sugar. Sanfoundry Global Education & Learning Series Fermentation Technology. A. Children are more susceptible to this disease. C) inoculation, fermentation, downstream processing, removal of waste. Cryptococcosis is a disease of ________________ c) chitin Which of the following is the most accurate method for microbial assay of antibiotics?