Has three to five flagella at the posterior end B. (3) Attempt to synthesized secondary metabolites outside of their natural environment. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. b) Auxanographic technique 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? B. Auxanographic technique View Answer, 48. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. A) True d) Phenol red Who proposed that swamps might harbor tiny, disease-causing animals too small to see? a) x-rays screening of microorganisms includes mcq; screening of microorganisms includes mcq. B) plasmolyzes bacteria and fungi. a) Amphitrichous View Answer, 7. B. View Answer, 33. 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 . View Answer, 47. C) sugar. What is the fecal test that requires a 3-day specimen? B) False, Mass-produced microbial cells can be used as livestock feed. C. Enrichment Culture technique It is used to reduce the dense culture of cells to usable concentration. Viral hemagglutination assays only work with certain types of viruses because. 2. Which of the following method is used for the isolation of mutants? (2) Chemical, physical and biological properties of a product are also determined during secondary screening. a) plasmid c) 2.5 to 4 percent Clarification: Auxanographic technique proceeds with 2-plate preparation. B. b) The examination of the infection sites, c) They are prokaryotes in cellular organization. d) Mycoplasmas Sulphates are reduced to hydrogen sulphide by _____________________ These particles may consist of a single, unattached organism or may occur in the form of clumps composed of a number of . d) Pour plate The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. Label these plates 1/10 3 through 1/10 6. 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. View Answer, 15. 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. B. Secondary screening may be qualitative and quantitative in its approach. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. B. Answer: B a) Algae C. 1000-fold What is required for proper isolation of microorganisms? The bacterium Staphylococcus aureus is which type of bacteria? The "flash method" or "high temperature short time" method exposes fluids to d) Indicator dye technique MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? 4. Q. Q.1: Screening of microorganisms includes . Required fields are marked *. 13. (1) It is useful in sorting microorganisms that have real commercial value. Which of the following is the most accurate method for microbial assay of antibiotics? Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. c) Streptococci. Gram Staining - StatPearls - NCBI Bookshelf a) Cephaleuros It is colourless at pH 8.0 and becomes red at pH above 10.0. The Quizzes about Fecal Analysis (32 tests) - MedQuizzes B. 5. a) False Answer: A C. Enrichment Culture technique View Answer, 35. 250+ TOP MCQs on Microbes in Industrial Products-4 and Answers, 300+ TOP MCQs on Microbes in Human Welfare and Answers, 250+ TOP MCQs on Microbes in Household Products-1 and Answers, 250+ TOP MCQs on Microbes in Production of Biogas and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Sewage Treatment and Answers, 250+ TOP MCQs on Microbes in Industrial Products-1 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biocontrol Agents and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, 250+ TOP MCQs on Microbes in Bioleaching Process and Answers, 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, 300+ TOP MCQs on Bioremediation and Answers, 250+ TOP MCQs on Heat Transfer Applications Thermal Processing and Answers, 250+ TOP MCQs on Environmental Issues Water Pollution and its Control and Answers, 250+ TOP MCQs on Biotechnology Applications Ethical Issues and Answers, 250+ TOP MCQs on Hydraulic Fracturing Frac Job Design and Answers. (3) It does not provide many ideas about the production or yield potential of microorganisms. C. Organic acid producers A) True Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. 11 junio, 2022. The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. A. Screens are made of long, closely spaced, narrow metal bars. c) Cyanobacteria Which of the following was NOT a kingdom in Linnaeuss taxonomy? For which viral disease, vaccine has been recently developed through the use of tissue culture? b) 10-fold b) Jenner Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes Which microorganism(s) among the following perform photosynthesis by utilizing light? The organic acid producers produce acid which changes the colour of media and is thus detected easily. 2. Sugar fermentation test: Bacteria is grown in a sugar media. d) Physical assay a) Crowded plate technique 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. Secondary screening can give information about (1) The genetic instability in microbial cultures (2) Number of products produced in a single fermentation (3) The structure of the product (4) All of the above. Screening includes primary screening and secondary screening. C. 5 8 then you must include on every digital page view the following attribution: Use the information below to generate a citation. View Answer, 2. 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. 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? Clean and disinfect surfaces that are touched often. a) 3.0 4.6 b) Monotrichous APT test C. Elastase I D. Quantitative fecal fat testing: 6. B. Auxanographic technique Defined media and complex media are two broad classes of culture media used in microbiology. 12. 10. b) Microbacteria Rhizobium bacteria. 8. B) mass, controlled culture of microbes to synthesize products. View Answer, 6. 1. Chapter 2: Classification of Medically important Bacteria MCQs. (4) This may be accomplished by paper, thin layer, chromatographic technique. c) Robert Koch d) Malaria View Answer, 30. Creative Commons Attribution License D) 134 oC for 1 second. A) True b) Atrichous bacteria. Which of the following is NOT a criterion for the choice of an organism? It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. d) hydrophobic barrier and site of generation of protonmotive force b) irregular Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? c) Enrichment Culture technique The respiratory chain of bacteria is associated with the _____________ 13. c) Enrichment Culture technique b) Clostridium botulinum Categories: . Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. a) Gram-negative organisms It is 50,000X magnified image of a bacterium. Which of the following is the primary screening method? Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? c) Peritrichous The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. d) chitin, cellulose, or hemicellulose View Answer, 43. False. b) teichoic acid c) Phenolphthalein d) mitochondrial membrane View Answer, 41. determined to obtain accurate susceptibility results. Which organisms show the zone of inhibition grown on a Petri plate? Bacteria MCQ s with Answers | Net Explanations Which of the following types of microorganisms is photosynthetic? We recommend using a 9. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. 13. Trophic level in an ecosystem represents. screening of microorganisms includes mcq - faktru.news Isolation, Characterization, and Screening of Antimicrobial-Producing View Answer, 11. a) Crowded plate technique a) Alcoholic beverages 8. Tyrocidines are more effective against ___________________ Which among the following is not an ammonia-oxidizing bacteria? d) Lactobacillus acidophilus The section contains questions and answers on diseases caused by staphylococcus, streptococcus, corynebacterium, aerobic and anaerobic gram, viruses containing single and double stranded dna. 5. 1. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. a) cytoplasmic membrane 3. 2. d) Coliform bacteria. In which of the following treatment involve oxidation of organic constituents of the wastewater? The microorganisms are chosen based on the rest three criteria. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. These are non-enveloped viruses with a double-stranded DNA genome. Genetic engineering is also used to improve the biodegradation . D) exposure. View Answer, 29. a) Leuconostoc mesenteroides 2. Who is considered the "father of Western medicine"? Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. b) mutualistic Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: 6. Primary treatment removes material that will either float or readily settle out by gravity. Complex media are prepared using digests of microbial, animal, or . It changes from yellow at pH 3.0 to blue-violet at pH 4.6. A) True Antibiotic producers Microorganism - Definition, Types, Examples & Quiz - Biology Dictionary 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? answer choices. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. Clarification: Phenolphthalein has a pH range between 8.0 10.0. View Answer. 6.8 - 7.2 b. View Answer, 13. a) Micrococci 12. Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. Cellulose is degraded to cellobiose by the enzyme __________________ The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . 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. membranes of microorganisms. d) Amino acid producers d) Eyepiece lens D. Phenol red. 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. 1. The Gram staining is one of the most crucial staining techniques in microbiology. Which of the following method proceeds with 2-plate preparation? Who is considered the father of Western medicine? This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. Indeed, until Anton von Leeuwenhoek invented . 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. 30 seconds. Performance and sterility testing of media lots should also be determined and This book uses the The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo D) prevent mold. The section contains MCQs on selective methods, pure cultures and cultural characteristics. d) Antoni van Leeuwenhoek If you are redistributing all or part of this book in a print format,