screening of microorganisms includes mcq
The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. c. confining long hair and loose clothing . includes 6 urine samples. View Answer, 4. Trophic level in an ecosystem represents. You may refer to the lesson text whenever you are unsure of the answer. View Answer, 19. a) Study of molecules that are visible to human eyes Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? For which viral disease, vaccine has been recently developed through the use of tissue culture? View Answer, 2. Who is known as the father of Microbiology? 10. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. 6. a) phospholipids It must be toxic to micro-organisms at concentrations well below the toxic thresholds of humans and higher animals so that it cannot negatively affect the animals or humans. b) Rabies 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. A) True 4.1: Prokaryote Habitats, Relationships, and Microbiomes. a) True B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. Which of the following is NOT a criterion for the choice of an organism? View Answer, 13. a) Chemical and biological assay All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. Which of the following method is used for the isolation of mutants? b) teichoic acid Which of the following microorganism is eliminated in canned foods? a) Edwin John Butler d) Corynebacterium diphtheriae a) Shortest wavelength of visible light used 5. Which of the following microorganism produces dextran? 14. Full-form of ATCC is _________ 7. Aims and objectives. Primary methods to prevent food spoilage do NOT include Biology Multiple Choice Questions on Microbes. Secondary screening may be qualitative and quantitative in its approach. b) The organism must be able to produce a high yield of product screening of microorganisms includes mcqwarning signs for a deteriorating patient with covid 19 infection 2022.07.03 18:36 18:36 d. using damaged equipment and glassware. 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. then you must include on every digital page view the following attribution: Use the information below to generate a citation. It is done by using paper, thin layer or other chromatographic techniques. 11. d) Multiple fission Which of the following is the source of Vitamin A. Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. (1) Screen organic acid-producing microbes. View Answer. Yeast cells are good source of. are not subject to the Creative Commons license and may not be reproduced without the prior and express written b) cellulose True c) Binary fission coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. 3. D. Indicator dye technique. Which of the following are important primary screening techniques? c) parasitic infection b) True D. Indicator dye technique. MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? These are non-enveloped viruses with a double-stranded DNA genome. D) small-scale production is used to synthesize product. b) aerobic cells View Answer, 33. c) neither aerobic and anaerobic cells Answer: 4. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? The well-isolated colonies are antibiotic producers with the zone of inhibition. The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. c) Breads 5. b) Monotrichous It belongs to the phthalein family that is employed as an acid-base indicator. Chapter 4: Clinical Virology MCQs. A) organic acids. a. b) plaque _______ are the agents that act as carriers of a pathogen and spread diseases. a) Small pox a) Condenser lens 4.0 SECONDARY SCREENING OF MICROORGANISMS . 4. View Answer, 22. c) Chemical assay C. 5 8 View Answer, 31. c) 1000-fold c) 5 8 The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . b) Antibiotic producers a) Thiobacillus thiooxidans To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. d) Antoni van Leeuwenhoek c) Crick Clean and disinfect surfaces that are touched often. View Answer, 39. View Answer, 5. 6. View Answer, 2. d) Coliform bacteria. B) are by-products of metabolism that are not important to microbe function. Microbiology is the study of : 3. Acridine orange is which type of mutagen? 2. D) starch. 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. The screening is isolation and detection of microorganisms of interest. c) Lactobacilli c) Enrichment Culture technique If you are redistributing all or part of this book in a print format, a) site of generation of protonmotive force A) heat below 100 oC. c) Spirochetes What is the fecal test that requires a 3-day specimen? In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b 9. consent of Rice University. c) AIDS a) Crowded plate technique View Answer, 14. View Answer, 8. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. a) parasitic b) Rhodospirillum View Answer, 15. A. 5. Clarification: Auxanographic technique proceeds with 2-plate preparation. A. American Type Culture Collection Which of the following is the primary screening method? Which of the following method is not used in isolation and screening of desired microorganisms? 3. A) True As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. View Answer, 25. 10. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. 13. It should not leave damage and odour. b) Auxanographic technique View Answer, 21. C. Enrichment Culture technique D) all of the above. View Answer, 27. 7. a) Leuconostoc mesenteroides Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ 14. What is the approximate size of the bacterial cell? For this dilution, it may be said that the solution was diluted _______ Answer: A C. Phenolphthalein Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. 4. Clarification: Phenolphthalein has a pH range between 8.0 10.0. 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. Which of the following method can be used to determine the number of bacteria quantitatively? Which of the following are true for cytoplasmic membrane? d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. c) Bacillus thuringiensis View Answer, 30. Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. d) American Type Classifier and Collection 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. Lipopolysaccharide in cell walls is characteristic of? b) Streptomyces olivaceus c) 2.5 to 4 percent d) Fungi The bacterium Staphylococcus aureus is which type of bacteria? Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. Sulphur can be utilized by bacteria in the a. c) Spirillum volutans Who was the first to observe animalcules under the microscope? Pathogen testing is continuously performed throughout the production . Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. True Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? What is required for proper isolation of microorganisms? 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. a) Growth Factor producers d) The organism must be able to grow in an easily available nutrient medium c) prophage Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? d) Physical assay B) heat. screening of microorganisms includes mcqshortest water tower in the world. a) 100-fold b) Streptococcus lactis c) Pour-plate and spread plate c) beta-glucosidase The Microbiology Society has a vision and mission around which we base our strategy. The respiratory chain of bacteria is associated with the _____________ Which was the first disease for which a chemotherapeutic agent was used? Which among the following is not an ammonia-oxidizing bacteria? View Answer, 41. You will get a gown or sheet as a cover. b) ribitol residues Which of the following are present in teichoic acids? Through primary screening only few or many microorganism that produce a industrially . 6.8 - 7.2 b. d) Cristispira 3. Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . 2. A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. Microorganisms Class 8 Science Chapter 2 as per NCERT Book used in CBSE and other Schools. False. View Answer, 18. a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Which of the following method is not used in isolation and screening of desired microorganisms? Cellulose is degraded to cellobiose by the enzyme __________________ Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Answer: A View Answer, 8. 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. Done in one or few steps. a) Nitrospina gracilis d) hydrophobic barrier and site of generation of protonmotive force c) Nitrosomonas europaea Plasmodium divides by which of the following method most commonly? b) Gram-positive organisms c) Streptococcus thermophilus (3) It does not provide many ideas about the production or yield potential of microorganisms. a) The organism must be genetically stable Prokaryotes are unicellular microorganisms whose cells have no nucleus. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. View Answer, 11. 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. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. d) Photosynthetic sulfur bacteria Easy detection of the small percentage of useful microorganism. d) both aerobic and anaerobic cells a) Crowded plate technique 4. c) Peritrichous Answer: A The colour of plate changes from red to yellow in the zone of organisms producing organic acid. 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 multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. Which of the following is the most accurate method for microbial assay of antibiotics? c) Saccharomyces cerevisiae 2. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. Place the gram of soil into the first tube with saline and SHAKE WELL. Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. View Answer, 29. Primary treatment removes material that will either float or readily settle out by gravity. determined to obtain accurate susceptibility results. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. d) Pedoviridae It is a non-profit organization and a key resource for medical research. C) alcohol. The section contains MCQs on selective methods, pure cultures and cultural characteristics. What are the methods of isolating the pure culture of microorganisms? screening of microorganisms includes mcq; screening of microorganisms includes mcq. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. d) Lophotrichous Therefore, the exact composition of a defined medium is known. Defined media and complex media are two broad classes of culture media used in microbiology. Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. c) Microviridae a) Amphitrichous In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? a) glycerol residues The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. 1. c) Gram-negative bacteria 2. (Or show it to your microbiology professor, just for fun.) d) Primary treatment Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? B. B) sulfites. Wash your hands with soap and water for at least 20 seconds. c) Streptococci. Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. Symptoms include cough and lung infection. What is the name of the procedure performed under sterile conditions to eliminate 45) What are the types of general characteristics that are important for the identification and classification of protozoa? (4) This may be accomplished by paper, thin layer, chromatographic technique. A) True d) Phenol red Which of the following is a type of fungal microorganism? View Answer, 5. View Answer, 34. d) an increase in the mass of an individual organism D) prevent mold. Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. True. Answer: B Here are 1000 MCQs on Microbiology (Chapterwise). b. b) hexokinase 9. The organism must be able to produce a high yield of product The microorganisms secrete the enzymes into their nutrient medium to make better use of it. 3. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Penicillin causes inhibition of Mycoplasmas. C) use of microbes in sewage and pollution control. Chemical preservatives do NOT include 2. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. Your email address will not be published. d) Rose Bengal Agar plate c) UV light Phosphorus is essential component of __________ Chapter 3: Classification of Viruses MCQs. It should have a fast rate of kill of micro-organisms. Want to cite, share, or modify this book? Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. d) 2-fold D) A and C . a) Styloviridae screening of microorganisms includes mcq. 3. b) Xanthophycophyta (1) Its a process for the detection and isolation of microorganisms of our interest. d) Prototheca b) Study of animals and their family 5. d) The organism must be able to grow in an easily available nutrient medium. Some of the frequently asked exam questions are as follows:-. c) Psychrophile The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. a) changes in the total population c) Mycobacterium tuberculosis 15. 100-fold 2. C) selecting microbial strains that lack a feedback system. a) electron beams and magnetic fields View Answer, 13. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. b) irregular A BV test is done in a similar way as a pelvic exam or Pap smear. Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. View Answer, 32. Answer: A 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. lack of cell wall. 3. 6. a) Streptomyces sp. 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. Auxanography technique is employed for detecting microorganisms able to produce__________. How do you isolate microorganisms from the soil? b) cell wall c) The optimum temperature for the growth of an organism must be above 50C. Crowded plate technique is used for screening of____________. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. 10. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Sugar fermentation test: Bacteria is grown in a sugar media. d) Gram-positive bacteria b) Atrichous bacteria. Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Identification of bacteria by biochemical tests. The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. Measles is a disease caused by a virus, it is spread via respiratory droplets. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. Answer: B View Answer, 12. b) coliforms 12. 8. c) An objective with minimum numerical aperture What is Microbiology? Potato Dextrose Agar plate d) 2 micrometer in diameter d) mitochondrial membrane Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. A 7 year old girl developed a sore throat and fever for 2 days. 11. 5. It is further followed by secondary screening, to check the capabilities and gain information about these organisms. The normal composition of feces includes all of the following except: A. Bacteria B. Answer: C 9. About Oracle NetSuite. A. 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, 37. c) Enrichment Culture technique They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. B. Auxanographic technique This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. View Answer, 12. d) Phaeophycophyta View Answer, 14. The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. It is the organization which has the largest department of Research and Development. c) fecal streptococci Secondary screening may be qualitative and quantitative in its approach. b) False the virus must not be able to lyse red blood cells. View Answer, 49. In modern plants the screens are cleaned . View Answer, 3. The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme 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. The organism must be genetically stable 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. 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 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. As an Amazon Associate we earn from qualifying purchases. The screening is isolation and detection of microorganisms of interest. b) Treponema pallidum B. is affected by the patient's food intake on the day of testing. Protozoa that eat other organisms are known as _______________ Which of the following method is not used in isolation and screening of desired microorganisms? View Answer, 6. d) glucose residues c) Organic acid producers b) Auxanographic technique View Answer, 3. Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? Which among the following is a pathogenic algae for humans? 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