screening of microorganisms includes mcq

Full-form of ATCC is _________. d) Corynebacterium diphtheriae B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. Enrichment culture technique was developed by_________, 16. 6. View Answer, 15. b) Thymol blue d) Pedoviridae What is required for proper isolation of microorganisms? c) magnetic fields Good work practices include, a. smelling and tasting chemicals . d) Indicator dye technique View Answer, 30. View Answer, 6. 10-fold Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. Yeast cells are good source of. b) True Which among the following are Spirochetes? View Answer, 40. Which of the following are the growth morphology of the protozoa? This book uses the The section contains questions and answers on biological and economic importance of algae, algae characteristics and classification, ecology and protozoa importance, protozoa characteristics, protozoa morphology and reproduction. A) True View Answer, 21. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. c) Objective lens Report an issue. a) Small pox Answer: D b) The organism must be able to produce a high yield of product Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Trophic level in an ecosystem represents. b) Budding B. Auxanographic technique Give the steps of typical sewage treatment plant are as given below. and you must attribute OpenStax. 3. d) Measles Clarification: Adenoviruses cause respiratory infections. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. B) sulfites. lauren conrad and stephen colletti /; 2. During the test, You will take off your clothes below your waist. Our members have a unique depth and breadth of knowledge about the discipline. b) Streptomyces olivaceus Which of the following are produced by microorganisms? Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes 44) Which of the following microorganisms can grow only as strict intracellular parasites? d) Rose Bengal Agar plate d) Study of microscope Answer: C c) prophage 9. (2) Attempt to kill microorganisms outside of their natural environment. a) Micrococci d) gene D) removal of waste, inoculation, fermentation, downstream processing. Crowded plate technique d) The organism must be able to grow in an easily available nutrient medium d) mitochondrial membrane Answer: C d) 2-fold d) appendaged bacteria answer choices. (1) It is useful in sorting microorganisms that have real commercial value. For this dilution, it may be said that the solution was diluted _______ 2. B. 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. d) DNA polymerase II It is 50,000X magnified image of a bacterium. C. Organic acid producers Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? b) Automatic Type Counter & Classifier Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. What is required for proper isolation of microorganisms? Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. d) saprophytic View Answer, 3. D. American Type Classifier and Collection. False. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. c) An objective with minimum numerical aperture The reason they are called microorganisms is that you can only see them when you use a microscope. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ You may refer to the lesson text whenever you are unsure of the answer. You can also prevent infections through: Hand-washing. False. a) DNA polymerase III As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. Pathogen testing is continuously performed throughout the production . a) Shortest wavelength of visible light used The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. c) Enrichment Culture technique Some of the frequently asked exam questions are as follows:-. 8. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. Crowded plate technique 4. The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. 13. 1. 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. 1999-2023, Rice University. Secondary screening may be qualitative and quantitative in its approach. Which of the following method is not used in isolation and screening of desired microorganisms? a) Spread-plate Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. View Answer. a) Algae lack of cell wall. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Which isolation technique is most commonly used for colony isolation in the laboratory? d) Photosynthetic sulfur bacteria Chapter 4: Clinical Virology MCQs. 8.0 10.0 30 seconds. A 19-year-old male living in a tropical region of India visited the hospital. Butanol is obtained by fermenting molasses by. Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. 6. b) Antibiotic producers Which of the following foods is NOT made by fermentation? Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. B. c) Gram-negative bacteria b) Auxanographic technique Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. a) peptidoglycan Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. (Or show it to your microbiology professor, just for fun.) b) Auxanographic technique Avoid contaminated food and water. d. using damaged equipment and glassware. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. Answer: A a) changes in the total population B. Auxanographic technique c) Enrichment Culture technique b) cellulose A) retards growth of Staphylococcus aureus. Which is the secondary stage? D. Indicator dye technique. A. View Answer, 18. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . Clarification: The Antibiotic producers show the zone of inhibition. (1) Its a process for the detection and isolation of microorganisms of our interest. D) all of the above. On the second day, the symptoms got worse and she was taken to the hospital. 12. Potato Dextrose Agar plate Chapter 2: Classification of Medically important Bacteria MCQs. Which of the following method proceeds with 2-plate preparation? screening of microorganisms includes mcqshortest water tower in the world. The principal microorganism for yogurt is ______________________ They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. A) True d) Physical assay The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. b) The examination of the infection sites, c) They are prokaryotes in cellular organization. Sanfoundry Global Education & Learning Series Fermentation Technology. The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. d) Gram-positive bacteria B. Auxanographic technique Clarification: Phenolphthalein has a pH range between 8.0 10.0. ticks and fleas. Prokaryotes can be found everywhere on our planet, even in the most extreme environments. Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . B) heat. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. Which of the following is a correct usage of binomial nomenclature? D) all of the above. Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? B) mass, controlled culture of microbes to synthesize products. c) 2.5 to 4 percent b) hexokinase C. 5 8 citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. c) Desulfotomaculum sp. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. The organism must be genetically stable Full-form of ATCC is _________ The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? 1. b) Atrichous bacteria. Incorporation of CaCO3 in medium is also used to__________. 6. Blood C. Electrolytes D. Water: 5. View Answer. Place 6 test tubes into a rack and fill each with 9ml of 0.9% NaCl solution. Which was the first disease for which a chemotherapeutic agent was used? c) chitin Which of the following microorganism is eliminated in canned foods? 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. Which shape of bacteria has been represented in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: aClarification: The following diagram represents rod-shaped bacteria, magnified 1500X. A) fermentation, downstream processing, removal of waste, inoculation. View Answer, 29. d) 5 percent Here are 1000 MCQs on Microbiology (Chapterwise). View Answer, 13. Answer: A 5. Therefore, the exact composition of a defined medium is known. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? 10. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. Crowded plate technique All Rights Reserved. (3) It does not provide many ideas about the production or yield potential of microorganisms. Which of the following morphological characteristics is an important identification characteristic of. c) Robert Koch a) The organism must be genetically stable 2011-2023 Sanfoundry. c) carbohydrates In modern plants the screens are cleaned . c) Breads Which of the following is the example of encapsulated gram-positive bacteria? b) plaque a) Crowded plate technique b) Mesophile and psychrophile The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. chipotle corporate phone number . View Answer, 22. 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. The screening is isolation and detection of microorganisms of interest. Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? 10. False. Creative Commons Attribution License Cryptococcosis is a disease of ________________ b) Auxanographic technique The bacterium Staphylococcus aureus is which type of bacteria? A) substrates are added to the system all at once and runs until product is harvested. b) Streak-plate These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Our Environment Class 10 MCQ Question 6. In this process desired microorganism is generally isolated from a natural environment like soil, which . Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? a) Crowded plate technique a) Crowded plate technique The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. c) The optimum temperature for the growth of an organism must be above 50C. answer choices. Sulphates are reduced to hydrogen sulphide by _____________________ 3. D. The organism must be able to grow in an easily available nutrient medium. View Answer, 35. View Answer, 10. a) Eremothecium ashbyi c) an increase in the size of an individual organism Which of the following statements is correct regarding secondary screening________. Identification of bacteria by biochemical tests. a) parasitic d) both aerobic and anaerobic cells Water treatment typically requires three stages to make it potable from sewage. Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? The section contains multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. Which shape of bacteria has been shown in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: dClarification: The following diagram represents spherical shaped bacteria, magnified 1500X. A) True Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. b) Fungi Which of the following is the most accurate method for microbial assay of antibiotics? The "flash method" or "high temperature short time" method exposes fluids to 1. C. 1000-fold Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. 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. Everything you need to know about water and wastewater microbiology. b) Jenner The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. The Microbiology Society has a vision and mission around which we base our strategy. Which of the following plate is used to detect and isolate organic acid producers? 30 seconds. B. Auxanographic technique True 12. 1. View Answer, 2. A 7 year old girl developed a sore throat and fever for 2 days. Screens are made of long, closely spaced, narrow metal bars. b) gamma rays d) Phenol red a) Mesophile Which of the following are true for cytoplasmic membrane? What does a viral DNA becomes after being associated with the bacterial chromosome? C. Enrichment Culture technique A routine GTT: is three hours long. A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. b) False 1g of soil is added to that test tube and the soil is allowed to settle down. In this process the bacterium, which is a single cell, divides into two identical daughter cells. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. 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. View Answer, 10. Answer: A A) heat below 100 oC. This is one of the widely used methods and more important. c) Mumps 4.0 SECONDARY SCREENING OF MICROORGANISMS . d) Coliforms a. Streptococcus pyogens b. The normal composition of feces includes all of the following except: A. Bacteria B. View Answer, 5. View Answer, 7. Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: Which of the following foods is NOT made by fermentation? View Answer, 31. a) 100-fold Crowded plate technique Lipopolysaccharide in cell walls is characteristic of? 4. coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. A. Respiratory pathogens: Includes common viruses and atypical bacteria 2: NP swab: Pathogens may have prolonged shedding time; positive results may not rule out infection from other pathogens. d) chitin, cellulose, or hemicellulose Which of the following is the standard resource for identifying bacteria? All Rights Reserved. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. A. b) Gram-positive organisms Label these plates 1/10 3 through 1/10 6. Which among the following is a pathogenic algae for humans? Which microorganism(s) among the following perform photosynthesis by utilizing light? Want to cite, share, or modify this book? c) cytoplasm c) 1000-fold 3. These microorganisms have been often under-appreciated and under-studied. [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). All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. d) Coliform bacteria. Crowded plate technique Which of the following is used in electron microscope? (3) Attempt to synthesized secondary metabolites outside of their natural environment. The section contains MCQs on spirochetes, negative rods, cocci, facultatively anaerobic gram, rickettsias and chlamydias, mycoplasmas, positive cocci and positive bacteria. B) False, Microbiology 17 immunization and immune Testi. The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme Clarification: The Crowded Plate Technique is used for the detection and isolation of the organisms which are antibiotic producers. How do you isolate microorganisms from the soil? 6. Automatic Type Counter & Classifier MCQ on Our Environment Question 9. Genetic engineering is also used to improve the biodegradation . Definition: true bacteria; bacteria excluding the archaea. Microorganism Definition. Which isolation technique is most effective? 3. Who was the first to observe "animalcules" under the microscope? Question 6. Rickettsia species are carried by. It doesn't include viruses and prions because they are classified as non-living. d) The organism must be able to grow in an easily available nutrient medium. c) Mycobacterium tuberculosis 1. D. Rose Bengal Agar plate. d) Thermophile Who proposed that swamps might harbor tiny, disease-causing animals too small to see? B) False, Yeast cells prefer aerobic conditions to multiply in number. View Answer, 23. d) spherical 1. You will lie on your back on an exam table, with your feet in stirrups. d) glucose residues View Answer, 28. 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. View Answer, 32. c) Streptococcus thermophilus Which of the following enzyme removes the RNA primer with its 5-nuclease activity? Which of the following is the source of Vitamin A. c) Pour-plate and spread plate B. Which of the following method is not used in isolation and screening of desired microorganisms? uses 50 grams of glucose in a 500ml solution. the virus must not be able to lyse red blood cells. Microorganisms Class 8 Science Chapter 2 as per NCERT Book used in CBSE and other Schools. Microbiology is the study of : 3. c) American Type Counter Collection 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. View Answer, 36. 6.8 - 7.2 b. The microorganisms secrete the enzymes into their nutrient medium to make better use of it. screening of microorganisms includes mcqwarning signs for a deteriorating patient with covid 19 infection 2022.07.03 18:36 18:36 c) Bacillus thuringiensis Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. The section contains MCQs on selective methods, pure cultures and cultural characteristics. Air Sampling. c) Study of organisms that are not visible to naked eyes Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. determined to obtain accurate susceptibility results. A) True View Answer, 33. b) Viruses c) Spirillum volutans C) selecting microbial strains that lack a feedback system. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. 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. First link in any food chain is usually green plants because. In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b 1. 7. 6. B) inhibit germination of botulism spores. 100-fold The Gram staining is one of the most crucial staining techniques in microbiology. View Answer, 5. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Which of the following are important primary screening techniques? 11. Which of the following statement is correct regarding primary screening________. View Answer, 27. 4. 3.0 4.6 D. Hanging Drop technique. 5. 7. (2) It determines which microorganisms can produce a compound. b) RNA polymerase 2. membranes of microorganisms. a) phospholipids View Answer, 37. d) Malaria Glycolysis can occur in ___________ 6. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. The microorganisms from lakes and rivers can grow at a salt concentration of _________ Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a a) Treponema a) cytoplasmic membrane The organic acid producers produce acid which changes the colour of media and is thus detected easily. A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. uses 100 grams of glucose in a 300ml solution. B) are by-products of metabolism that are not important to microbe function. Phagocytosis is a critical part of the immune system. c) Organic acid producers Which of the following dye is colourless at acidic pH and becomes red at basic pH? C. The optimum temperature for the growth of an organism must be above 50C 4. All of the above. Aims and objectives. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. View Answer, 4. c) base analog The screening is isolation and detection of microorganisms of interest. b) cell wall In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. a) True b) mycotic infection c) 2mm in diameter D) 134 oC for 1 second. c) Secondary treatment b) Monotrichous C. Enrichment Culture technique chp 25 microbiology 211 mcq. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Which of the following is the primary screening method? A. a) Methyl red The process is repeated several times until the requirement is met. Salting, as a preservative, Which shape of bacteria has been represented in the following diagram? c) Chlorophycophyta C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. 15. b) Clostridium botulinum A. American Type Culture Collection b) Auxanographic technique Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? A) radiation. View Answer, 16. Biology Multiple Choice Questions on Microbes. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? There are various microorganisms types like bacteria, fungi, archaea, or protists. microscopic with a fried egg shape. Protozoa that eat other organisms are known as _______________ 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. 45) What are the types of general characteristics that are important for the identification and classification of protozoa? 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. d) Pasteur D. Phenol red. Has three to five flagella at the posterior end B. Prokaryotes are unicellular microorganisms whose cells have no nucleus. Indeed, until Anton von Leeuwenhoek invented . Which one of the following organisms is least likely to cause this illness? c) Psychrophile Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. Clarification: ATCC stands for American Type Culture Collection. For which viral disease, vaccine has been recently developed through the use of tissue culture? Cellulose is degraded to cellobiose by the enzyme __________________ The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. True b) Acanthopeltis Your email address will not be published. The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. Allow discarding of many valueless microbes. a) Leuconostoc citrovorum D) prevent mold. 11. Which of the following plate is used to detect and isolate organic acid producers? d) Indicator dye technique c) DNA polymerase I 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 . screening of microorganisms includes mcq. d) Phaeophycophyta b) The organism must be able to produce a high yield of product. 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. d) Amino acid producers Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. D. 2-fold. Acridine orange is which type of mutagen? A. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. D. Indicator dye technique. View Answer, 47. other viruses are too dangerous to work with in a clinical lab setting. b) vitamins a) Nitrospina gracilis What is Microbiology? Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. d) Hanging Drop technique MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host?