Genetic engineering is also used to improve the biodegradation . Crowded plate technique answer choices. C) maintain a high osmotic pressure to kill microorganisms. In this process desired microorganism is generally isolated from a natural environment like soil, which . 6.8 - 7.2 b. [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). B) are by-products of metabolism that are not important to microbe function. 2. The reason they are called microorganisms is that you can only see them when you use a microscope. All Rights Reserved. It belongs to the phthalein family that is employed as an acid-base indicator. 3. Who was the first to observe "animalcules" under the microscope? 30 seconds. Through primary screening only few or many microorganism that produce a industrially . Our members have a unique depth and breadth of knowledge about the discipline. 9. 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. d) Prototheca View Answer, 13. c) Enrichment Culture technique Indeed, until Anton von Leeuwenhoek invented . Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. View Answer, 23. View Answer, 8. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. View Answer, 35. C. Enrichment Culture technique Which of the following was NOT a kingdom in Linnaeuss taxonomy? 7. Answer: B Glycosylated hemoglobin: causes sickle cell anemia. the virus must not be able to lyse red blood cells. b) Jenner View Answer, 10. a) Condenser lens b) Auxanographic technique View Answer, 43. d) Study of microscope C) sugar. Which of the following are the growth morphology of the protozoa? a) Eremothecium ashbyi Glycolysis can occur in ___________ a) Crowded plate technique b) Gram-positive organisms b) True D) prevent mold. a) anaerobic cells a) Crowded plate technique C. Enrichment Culture technique Full-form of ATCC is _________. c) Binary fission c) Cyanobacteria A. Phenol red plate Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . A test tube contains 9ml distilled water. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. For which viral disease, vaccine has been recently developed through the use of tissue culture? Which of the following media is used for screening amylase? and you must attribute OpenStax. b) Fungi A) True consent of Rice University. a) Leuconostoc mesenteroides B. Auxanographic technique Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. APT test C. Elastase I D. Quantitative fecal fat testing: 6. a) elongated 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. Phosphorus is essential component of __________ Symptoms include cough and lung infection. Enrichment culture technique was developed by_________, 16. This reduces the cooling costs in large scale fermenters. 7. Label these plates 1/10 3 through 1/10 6. (4) This may be accomplished by paper, thin layer, chromatographic technique. C) is used to prevent growth of halophiles. 6. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. 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. 44) Which of the following microorganisms can grow only as strict intracellular parasites? Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? Which of the following plate is used to detect and isolate organic acid producers? 3. A. Defined media and complex media are two broad classes of culture media used in microbiology. b) Rhodospirillum b) RNA polymerase You may refer to the lesson text whenever you are unsure of the answer. Everything you need to know about water and wastewater microbiology. The section contains questions and answers on diseases caused by staphylococcus, streptococcus, corynebacterium, aerobic and anaerobic gram, viruses containing single and double stranded dna. Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. Which of the following types of mutants can be isolated using the replica plate technique? 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 . C. 5 8 (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. c) Chemical assay A. American Type Culture Collection A. Microbes can live in highly acidic as well as an alkaline medium. Automatic Type Counter & Classifier The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include Which one of the following organisms is least likely to cause this illness? d) saprophytic The section contains MCQs on selective methods, pure cultures and cultural characteristics. B. Auxanographic technique a) viruses c) Desulfotomaculum sp. He came with a lesion on the lower part of the left leg that according to him first appeared about a week before visiting the hospital. View Answer, 3. c) The optimum temperature for the growth of an organism must be above 50C d) Indicator dye technique This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. 6. b) below 1 percent c) Enrichment Culture technique a) site of generation of protonmotive force c) 2mm in diameter Water treatment typically requires three stages to make it potable from sewage. b. not washing hands before and after lab . Sulphates are reduced to hydrogen sulphide by _____________________ c) Spirochetes D. Rose Bengal Agar plate. _______ are the agents that act as carriers of a pathogen and spread diseases. Which of the following is the primary screening method? Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. Some of the frequently asked exam questions are as follows:-. 13. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. 12. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. View Answer, 17. d) The organism must be able to grow in an easily available nutrient medium C) new batches of microorganisms are screened for increased yield. d) an increase in the mass of an individual organism B. About Oracle NetSuite. It is done by using paper, thin layer or other chromatographic techniques. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. B) False, Yeast cells prefer aerobic conditions to multiply in number. Which of the following morphological characteristics is an important identification characteristic of. d) Cristispira Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? d. using damaged equipment and glassware. View Answer, 48. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. screening of microorganisms includes mcqwarning signs for a deteriorating patient with covid 19 infection 2022.07.03 18:36 18:36 The process is repeated several times until the requirement is met. Answer: 4. d) glucose residues Your email address will not be published. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. c) chitin Cryptococcosis is a disease of ________________ A) True c) 2.5 to 4 percent B. b) transposons c) Chlorophycophyta Blood C. Electrolytes D. Water: 5. Biotechnology, the practical application of microorganisms in making products for human use, is a relatively new science, begun since Pasteur's time. 3. 12. C. Phenolphthalein d) bacterial infection C) selecting microbial strains that lack a feedback system. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. a) Cephaleuros Our Environment Class 10 MCQ Question 6. Chrysolaminarin is the reserved food of ___________________ 11. a) Amphitrichous A. View Answer, 9. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. View Answer. c) 1000-fold d) All of the mentioned c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. b) Advanced treatment It should have a fast rate of kill of micro-organisms. a) parasitic 2. 3. c. confining long hair and loose clothing . Categories: . D. The organism must be able to grow in an easily available nutrient medium. microscopic with a fried egg shape. a) False 10. Place the gram of soil into the first tube with saline and SHAKE WELL. c) Crick 3. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. d) Eyepiece lens The production of substances in industrial microbiology occur in the sequence: Which of the following is a correct usage of binomial nomenclature? c) hydrophobic barrier (1) It is useful in sorting microorganisms that have real commercial value. Vaccination was invented by ____________ Performance and sterility testing of media lots should also be determined and Thank you so much for sharing. 3. b) light waves The microorganisms from lakes and rivers can grow at a salt concentration of _________ Which of the following is the source of Vitamin A. A. D) small-scale production is used to synthesize product. 5. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. 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. 2. Biology Multiple Choice Questions on Microbes. On the second day, the symptoms got worse and she was taken to the hospital. 11. 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. Answer: A Which was the first disease for which a chemotherapeutic agent was used? 25. a)Microaerophilic. 1. c) beta-glucosidase Which of the following yeast can be used to produce microbial protein? 10-fold Which of the following method is not used in isolation and screening of desired microorganisms? A) True A) are essential to microbe function. a) Treponema The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. It is done by using paper, thin layer or other chromatographic techniques. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. 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. View Answer, 44. As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. View Answer, 18. Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. c) Streptococcus thermophilus Creative Commons Attribution License Which of the following method proceeds with 2-plate preparation? chipotle corporate phone number . Microbiology is the study of : 3. Answer: A View Answer, 7. MCQ on Our Environment Question 9. c) Spirochaeta Chapter 2: Classification of Medically important Bacteria MCQs. Which of the following are present in teichoic acids? View Answer, 9. View Answer, 31. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? It is further followed by secondary screening, to check the capabilities and gain information about these organisms. b) False Your health care provider will insert a special tool called a speculum into your vagina. The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. A) retards growth of Staphylococcus aureus. A) True View Answer, 14. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. D) 134 oC for 1 second. View Answer, 41. The process is repeated several times until the requirement is met. View Answer, 49. 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, Rhizobium bacteria. 3. 15. a) Watson Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. 15. b) Antibiotic producers View Answer, 15. b) Borrelia Answer: B 4.0 SECONDARY SCREENING OF MICROORGANISMS . Who was the first to observe animalcules under the microscope? D. Indicator dye technique. View Answer. d) Measles (2) Chemical, physical and biological properties of a product are also determined during secondary screening. b) Longest wavelength of visible light used What are the methods of isolating the pure culture of microorganisms? A. 1. d) Pour plate What does a viral DNA becomes after being associated with the bacterial chromosome? View Answer, 34.
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