a) Neisseria gonorrhoeae. Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . Fecal coliform bacteria are a subgroup of total coliform bacteria. a) Methyl red 6. c) UV light View Answer, 7. c) 1000-fold 14. b) Rabies Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes B) mass, controlled culture of microbes to synthesize products. (Or show it to your microbiology professor, just for fun.) In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b During their metabolism, microbes produce chemicals, some of which are used by human beings. b) Streptococcus lactis c) carbohydrates What is the fecal test that requires a 3-day specimen? Microbes can live in highly acidic as well as an alkaline medium. d) Nitrosovibrio tenuis Your health care provider will insert a special tool called a speculum into your vagina. 9. c) prophage View Answer, 11. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Butanol is obtained by fermenting molasses by. Indeed, until Anton von Leeuwenhoek invented . View Answer, 40. d) Thermophile 4.1: Prokaryote Habitats, Relationships, and Microbiomes. Crowded plate technique (4) This may be accomplished by paper, thin layer, chromatographic technique. b) Gram-positive organisms d) Lophotrichous The section contains MCQs on selective methods, pure cultures and cultural characteristics. b) plaque There are various microorganisms types like bacteria, fungi, archaea, or protists. How do you isolate microorganisms in the air? 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? Definition: true bacteria; bacteria excluding the archaea. For this dilution, it may be said that the solution was diluted _______ 2011-2023 Sanfoundry. View Answer, 3. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ Set up a series of 1/10 dilutions: a. a) Lactobacillus d) Antoni van Leeuwenhoek d) cathode rays Which isolation technique is most effective? c) Chlorophycophyta 3. Who was the first to observe "animalcules" under the microscope? B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. 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. Viral hemagglutination assays only work with certain types of viruses because. Prokaryotes can be found everywhere on our planet, even in the most extreme environments. B. 5. B) False, Mass-produced microbial cells can be used as livestock feed. View Answer, 31. a) viruses A. a) electron beams and magnetic fields It is done by using paper, thin layer or other chromatographic techniques. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. d) Multiple fission d) Coxiella burnetii Antibiotic producing microorganisms can be detected by the method__________, 5. 2011-2023 Sanfoundry. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. Our mission is to improve educational access and learning for everyone. (2) Attempt to kill microorganisms outside of their natural environment. 11. 7. Sugar fermentation test: Bacteria is grown in a sugar media. Who was the first to observe animalcules under the microscope? c) American Type Counter Collection 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 . Which of the following was NOT a kingdom in Linnaeuss taxonomy? False. View Answer, 9. B. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. Crowded plate technique 6. c) Crick A 7 year old girl developed a sore throat and fever for 2 days. a) changes in the total population b) Jenner Which of the following microorganism is eliminated in canned foods? a) Leuconostoc citrovorum Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. View Answer, 48. The process is repeated several times until the requirement is met. Nitrates maintain the red color of preserved meats and 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. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. B. A. Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. Rickettsia species are carried by. View Answer. 2. [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). C. Enrichment Culture technique View Answer, 39. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. Which of the following are the growth morphology of the protozoa? A. Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. Which of the following method is not used in isolation and screening of desired microorganisms? 7. Answer: B c) Streptococcus thermophilus A. Fecal occult blood B. a) phospholipids c) The optimum temperature for the growth of an organism must be above 50C. D. Indicator dye technique. 7. D. Hanging Drop technique. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo Which of the following foods is NOT made by fermentation? 11. the virus must not be able to lyse red blood cells. D) prevent mold. The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. Clarification: Phenolphthalein has a pH range between 8.0 10.0. The bacterium Staphylococcus aureus is which type of bacteria? View Answer, 5. d) Mycoplasmas Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. 3. B. Auxanographic technique B) heat. What is required for proper isolation of microorganisms? a) Final treatment a) elongated D. Indicator dye technique. Which of the following method is not used in isolation and screening of desired microorganisms? c) 5 8 Auxanography technique is employed for detecting microorganisms able to produce__________. Which of the following yeast can be used to produce microbial protein? Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. 5. Complex media are prepared using digests of microbial, animal, or . B. 8. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. a) Crowded plate technique d) Pedoviridae 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. You can also download the PDF of Microbiology MCQs by applying below. For e.g., cellulose producers grow on nutrient medium supplied with cellulose. Primary treatment removes material that will either float or readily settle out by gravity. D. Amino acid producers. C) inoculation, fermentation, downstream processing, removal of waste. Answer: 4. Gram negative bacteria take the color of safranin stain and appear pink or red. 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. 1. View Answer, 35. C lostridium perfringens is an obligate anaerobic bacteria that do not require oxygen to grow and thus it is not Microaerophilic, microaerophilic bacteria require low amounts of oxygen for growth. d) 5 percent C. American Type Counter Collection Which microorganism(s) among the following perform photosynthesis by utilizing light? b) Viruses Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. A. Potato Dextrose Agar plate C. MacConkeys Agar plate Which of the following is not a subfield of microbiology? Air Sampling. 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? Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. uses 50 grams of glucose in a 500ml solution. 37) Which of the following is the selective media used for the cultivation and isolation of. What is required for proper isolation of microorganisms? View Answer, 18. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. 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. A. Which of the following are produced by microorganisms? False. View Answer. and you must attribute OpenStax. Note when energy and additional compounds are necessary for any of these mechanisms to operate. The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. Which of the following media is used for screening amylase? c) Pour-plate and spread plate a) Study of molecules that are visible to human eyes A) True View Answer, 37. Which of the following method is not used in isolation and screening of desired microorganisms? Crowded plate technique Answer: B 7. It is 50,000X magnified image of a bacterium. 2. C) use of microbes in sewage and pollution control. Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. A) True 3. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? b) True Microbiology MCQ. d) Gram-positive bacteria Wish you the best in your endeavor to learn and master Microbiology! 4. The microorganisms secrete the enzymes into their nutrient medium to make better use of it. d) Indicator dye technique is affected by the patient's food intake on the day of testing. View Answer, 12. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. Engineering 2023 , FAQs Interview Questions, on 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, Fermentation Technology Objective Questions, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 1 and Answers, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 2 and Answers, 250+ MCQs on Media for Industrial Fermentations Minerals, Growth Factors and Buffers and Answers, 250+ MCQs on Improvement of Industrial Microorganisms and Answers, 250+ TOP MCQs on Vibration Isolation and Transmissibility and Answers, 250+ TOP MCQs on Multiversion Schemes, Snapshot Isolation, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, 250+ TOP MCQs on Transaction Isolation Levels and Answers, 250+ TOP MCQs on Enzyme Extraction and Isolation Choice of Enzyme Sources and Answers, 250+ MCQs on Microbial Growth Kinetics Batch Culture and Answers, 200+ TOP CELL CULTURES and CHARACTERISTICS Interview Questions and Answers, 200+ TOP Microbiology Of Foods Interview Questions with Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ MCQs on Brewing Yeast Differentiation (Traditional Methods) and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 300+ TOP Cell Cultures & Characteristics Objective Questions and Answers, 300+ TOP Microbiology of Foods Objective Questions & Answers. a) viral infection Answer: C 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. 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. b) Xanthophycophyta View Answer, 6. The organic acid producers produce acid which changes the colour of media and is thus detected easily. B. Auxanographic technique d) Hanging Drop technique (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . Q. Q.1: Screening of microorganisms includes . C) maintain a high osmotic pressure to kill microorganisms. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. 44) Which of the following microorganisms can grow only as strict intracellular parasites? Which was the first disease for which a chemotherapeutic agent was used? It belongs to the phthalein family that is employed as an acid-base indicator. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. 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. a) plasmid As an Amazon Associate we earn from qualifying purchases. The following diagram represents ____________a) Plate with wormsb) Colonies of bacteria on a petri dishc) Onion root cells on a plated) Cheek cellsAnswer: bClarification: The following diagram represents colonies of bacteria on a petri dish. magic island poem tone Consult Now View Answer, 8. a. 2. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. Full-form of ATCC is _________. C. Enrichment Culture technique a) x-rays 3.0 4.6 d) Indicator dye technique 3. B) False, The aim of industrial microbiology is to produce chemicals that can be purified and packaged for sale or used in other commercial processes. Crowded plate technique is used for screening of____________. Place 6 test tubes into a rack and fill each with 9ml of 0.9% NaCl solution. Crowded plate technique Answer: 1. Required fields are marked *. C. Enrichment Culture technique 4. d) mitochondrial membrane d) Cristispira (3) It does not provide many ideas about the production or yield potential of microorganisms. pH, cations, thymidine or thymine, use of supplemented media). 8. a) anaerobic cells View Answer, 50. 5. View Answer, 23. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. a) True The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. 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. Phosphorus is essential component of __________ Which organisms show the zone of inhibition grown on a Petri plate? 15. b) light waves 16) A bacteriological stain also known as the differential stain is used for the identification of acid-fast organisms, Which of the following metabolic property differentiate the pink-colored colonies of. Which of the following is used in electron microscope? False. c) Lactobacilli Fermentation Products & Bioreactor Design, Fermentation Laboratory & Bioprocesses Design, SCADA System for Bioreactors, Beer & Brewing, Fermenting Vegetables & Sour Tonic Beverages, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Fermentation Technology Questions and Answers Microbial Growth Kinetics FedBatch Culture, Next - Fermentation Technology Questions and Answers Preservation of Industrial Microorganisms, Certificate of Merit in Fermentation Technology, Fermentation Technology Certification Contest, Genetic Engineering Questions and Answers Database Screening and Screening by Nucleic Acid Hybridisation 1, Fermentation Technology Questions and Answers Improvement of Industrial Microorganisms, Fermentation Technology Questions and Answers Fermentation Products Recovery and Purification Chromatography, Genetic Engineering Questions and Answers Database Screening and Screening by Nucleic Acid Hybridisation 2, Mechanical Operations Questions and Answers Screening Equipments, Fermentation Technology Questions and Answers Microbial Growth Kinetics FedBatch Culture, Fermentation Technology Questions and Answers Aeration and Agitation Determination of Kla Values, Fermentation Technology Questions and Answers Microbial Growth Kinetics Continuous Culture, Fermentation Technology Questions and Answers Commercial Applications Surface, Submerged and Solid State Fermentation, Books on Engineering, Science and Technology, Chemical Process Technology MCQ Questions. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. Clarification: The pH range of Bromophenol blue is 3.0 4.6. Cellulose is degraded to cellobiose by the enzyme __________________ Done in one or few steps. All microbes are harmful to humankind.a) Trueb) FalseAnswer: bClarification: Although microbes cause a large number of diseases in human beings, various animals and plants, but not all microbes are harmful. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. Which among the following group of microorganisms are found in the ducts of cows mammary glands? Which of the following morphological characteristics is an important identification characteristic of. Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? Binary fission begins when the DNA of the bacterium divides into two (replicates). Which among the following is not an ammonia-oxidizing bacteria? b) Thymol blue Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. 1. What is high throughput screening used for? The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. A. We recommend using a Creative Commons Attribution License Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? Which isolation technique is most commonly used for colony isolation in the laboratory? The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. b) Fungi Which of the following enzyme removes the RNA primer with its 5-nuclease activity? B) False, When in doubt, throw it out. B. D) A and C . C. 5 8 View Answer, 45. 1g of soil is added to that test tube and the soil is allowed to settle down. Allow discarding of many valueless microbes. d) Rose Bengal Agar plate 11. This is one of the widely used methods and more important. c) 2mm in diameter Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. 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. 1g of soil is added to that test tube and the soil is allowed to settle down. (4) Attempt to Stain microorganisms. 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, a) American Type Culture Collection Which of the following plate is used to detect and isolate organic acid producers? Bacteria having clusters of flagella at both poles of cells are known as? The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. B) sulfites. 4.0 SECONDARY SCREENING OF MICROORGANISMS . A) heat below 100 oC. microscopic with a fried egg shape. A) fermentation, downstream processing, removal of waste, inoculation. Defined media and complex media are two broad classes of culture media used in microbiology. A) manipulating the growth environment. View Answer, 7. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. 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) Phenol red Which of the following method proceeds with 2-plate preparation? a) above 1 percent A) radiation. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. d) Indicator dye technique Each of the following organisms is an important cause of urinary tract infections except: a. Klebsiella pneumoniae b. Escherichia coli c. Bacteriodes fragilis d. Proteus mirabilis; A 30-year woman has non-bloody diarrhea for the past 14 hours. What are the cell wall structural components of fungi? Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. 4. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. Clean and disinfect surfaces that are touched often. b) Advanced treatment 38) All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, b) Used for the culture of common fastidious bacteria, c) It is used for the culture of hemolytic bacteria. It should be active and stable and environmentally safe. Answer: 4. d) Pasteur Our members have a unique depth and breadth of knowledge about the discipline. Primary Screening of Microorganisms: Primary screening may be defined as detection and isolation of the desired microorganism based on its qualitative ability to produce the desired product like antibiotic or amino acid or an enzyme etc.
24848 Long Valley Rd, Hidden Hills, Ca 91302,
Quenlin Blackwell Skincare Company,
Australian Shepherd Puns,
Articles S