B. c) Streptococci. 3. Allow discarding of many valueless microbes. D) exposure. a) Alcoholic beverages a) cellulose dehydrogenase Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. View Answer, 6. View Answer, 36. 30 seconds. 5. b) light waves Q.1. Bacteria do not grow at a water activity level below 0.91 and require neutral pH (6.5-7) to cause food spoilage (e.g. 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. Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. c) Enrichment Culture technique 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. View Answer, 15. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . 4. D) all of the above. 14. What is the approximate size of the bacterial cell? Gram negative bacteria take the color of safranin stain and appear pink or red. B) are by-products of metabolism that are not important to microbe function. Which of the following foods is NOT made by fermentation? Sugar fermentation test: Bacteria is grown in a sugar media. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. A) manipulating the growth environment. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. Growth of bacteria or microorganisms refer to __________________ D. Rose Bengal Agar plate. ticks and fleas. D) 134 oC for 1 second. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. 6. b) Fermented dairy products Plasmodium divides by which of the following method most commonly? True. a) Edwin John Butler d) Phenol red b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. b) below 1 percent Answer: C d) electron beams This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. Which of the following are present in teichoic acids? 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. c) American Type Counter Collection What is the fecal test that requires a 3-day specimen? a) Methyl red A test tube contains 9ml distilled water. True b) Magnifying lens Which of the following is the standard resource for identifying bacteria? 5. Full-form of ATCC is _________. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? c) Study of organisms that are not visible to naked eyes c) MacConkeys Agar plate Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. It is 50,000X magnified image of a bacterium. Phosphorus is essential component of __________ 1999-2023, Rice University. a) The organism must be genetically stable. b) Longest wavelength of visible light used Some of the frequently asked exam questions are as follows:-. b) Fungi a) Final treatment Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . c) fecal streptococci A) are essential to microbe function. Avoid contaminated food and water. Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. View Answer, 40. A. C) inoculation, fermentation, downstream processing, removal of waste. Which of the following is a prokaryotic microorganism? A BV test is done in a similar way as a pelvic exam or Pap smear. c) Enrichment Culture technique True. b) vitamins a. Streptococcus pyogens b. (2) Attempt to kill microorganisms outside of their natural environment. uses 100 grams of glucose in a 300ml solution. However, if environmental contamination can enter the system, pathogens could get in too. A) production of alcoholic beverages by microorganisms. d) bacterial infection d) Antoni van Leeuwenhoek b) transposons The process is repeated several times until the requirement is met. Place the gram of soil into the first tube with saline and SHAKE WELL. a) Mesophile The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. All Rights Reserved. 3. Screens are made of long, closely spaced, narrow metal bars. 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. Each daughter cell is a clone of the parent cell. 2. a) Cyanobacteria, Fungi and Viruses A) organic acids. 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. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. d) Mycoplasmas c) Spirillum volutans 14. Self-Assessment Quiz. a) DNA polymerase III MCQ Questions for Class 8 Science: Ch 2 Microorganisms: Friend and Foe. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Juli 2022 c) 2.5 to 4 percent In batch fermentation, This is one of the widely used methods and more important. 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 . Wish you the best in your endeavor to learn and master Microbiology! We recommend using a A food chain comprising birds, green plants, fish and man. Answer: D 5. 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. A. 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These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. A) True a) Thiobacillus thiooxidans All of the above. a) above 1 percent They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. Microorganism Definition. 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. d) Malaria c) 1000-fold d) proteins What is the pH range of Bromophenol blue? Which of the following is a family of lambda phage viruses? C. The optimum temperature for the growth of an organism must be above 50C B. b) Atrichous bacteria. B. 3. False. Some strains, however, can cause illness. Answer: A a) Lactobacillus Which of the following inhibits DNA replication? It is done by using paper, thin layer or other chromatographic techniques. pH, cations, thymidine or thymine, use of supplemented media). 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) Corticoviridae This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. 1. To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. A) True Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? Identification of bacteria by biochemical tests. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . D) all of the above. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a The microorganisms from lakes and rivers can grow at a salt concentration of _________ Which of the following are produced by microorganisms? View Answer, 13. b) hydrophilic barrier Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. In an ecosystem, herbivores represent. a) 1mm in diameter How to avoid the spreading of Microorganisms has been discussed. the virus must be able to lyse red blood cells. Which of the following method is not used in isolation and screening of desired microorganisms? c) an increase in the size of an individual organism D) prevent mold. 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. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. 4. A. D. Indicator dye technique. B. D. The organism must be able to grow in an easily available nutrient medium. 8. 9. then you must include on every digital page view the following attribution: Use the information below to generate a citation. View Answer, 50. Which of the following types of microorganisms is photosynthetic? 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. 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. It is a non-profit organization and a key resource for medical research. A test tube contains 9ml distilled water. Rickettsia species are carried by. b) Mesophile and psychrophile Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. 10. d) both aerobic and anaerobic cells Name three reserve materials synthesized by microorganisms and note which microbial groups microscopic with a fried egg shape. View Answer, 13. If you would like to learn "Microbiology" thoroughly, you should attempt to work on the complete set of 1000+ MCQs - multiple choice questions and answers mentioned above. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. Sulphur can be utilized by bacteria in the a. 1. 9. d) Coliform bacteria. Crowded plate technique Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. View Answer, 34. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Microbiology is the study of : 3. d) Indicator dye technique c) Bacillus thuringiensis 3. Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? 1. 100-fold Which of the following plate is used to detect and isolate organic acid producers? 7. Methyl red The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme View Answer, 4. A. Phenol red plate Which among the following is a pathogenic algae for humans? 6. The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. 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.