screening of microorganisms includes mcq screening of microorganisms includes mcq

the virus must be able to cross-link red blood cells directly. chp 25 microbiology 211 mcq. c) Mumps Butanol is obtained by fermenting molasses by. In this process desired microorganism is generally isolated from a natural environment like soil, which . It is colourless at pH 8.0 and becomes red at pH above 10.0. d) DNA polymerase II Yeast cells are good source of. It should not leave damage and odour. What is the name of the procedure performed under sterile conditions to eliminate Which of the following is the example of encapsulated gram-positive bacteria? C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. View Answer, 10. B) False, When in doubt, throw it out. Which of the following are present in teichoic acids? a) viral infection B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. The Microbiology Society has a vision and mission around which we base our strategy. c) Mycobacterium tuberculosis a) Amphitrichous A) heat below 100 oC. The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. Identification of bacteria by biochemical tests. b) The examination of the infection sites, c) They are prokaryotes in cellular organization. C) selecting microbial strains that lack a feedback system. View Answer, 41. View Answer, 20. B) are by-products of metabolism that are not important to microbe function. Phagocytosis is a critical part of the immune system. a) False A) True 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. d) 2-fold Which of the following inhibits DNA replication? Answer: 4. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. 100-fold If you are redistributing all or part of this book in a print format, Which of the following are true for cytoplasmic membrane? Which of the following types of microorganisms is photosynthetic? Chapter 2: Classification of Medically important Bacteria MCQs. D. American Type Classifier and Collection. It is used to reduce the dense culture of cells to usable concentration. d) glucose residues Label these plates 1/10 3 through 1/10 6. Incorporation of CaCO3 in medium is also used to__________. 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. (2) Chemical, physical and biological properties of a product are also determined during secondary screening. a. Streptococcus pyogens b. 8. 12. Which of the following plate is used to detect and isolate organic acid producers? A) retards growth of Staphylococcus aureus. Juli 2022 This reduces the cooling costs in large scale fermenters. 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. The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. Which among the following are Spirochetes? a) Treponema a) Leuconostoc mesenteroides The section contains questions and answers on biological and economic importance of algae, algae characteristics and classification, ecology and protozoa importance, protozoa characteristics, protozoa morphology and reproduction. A. a) Cyanobacteria, Fungi and Viruses a) above 1 percent 12. 15. 5. Secondary screening may be qualitative and quantitative in its approach. Acridine orange is which type of mutagen? Growth of bacteria or microorganisms refer to __________________ View Answer, 2. Who is known as the father of Microbiology? Allow discarding of many valueless microbes. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. 11. A. a) Thiobacillus thiooxidans d) Indicator dye technique 8. d) Hanging Drop technique Through primary screening only few or many microorganism that produce a industrially . 5. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. View Answer, 25. a) True 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. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. D) small-scale production is used to synthesize product. You can also download the PDF of Microbiology MCQs by applying below. Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. View Answer, 22. View Answer, 28. About Oracle NetSuite. 15. a) Phenol red plate Crowded plate technique The normal composition of feces includes all of the following except: A. Bacteria B. a) anaerobic cells These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. It is a non-profit organization and a key resource for medical research. B. Our Environment Class 10 MCQ Question 6. d) Amino acid producers The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. Prokaryotes are unicellular microorganisms whose cells have no nucleus. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. b) Streptococcus lactis c) hydrophobic barrier then you must include on every digital page view the following attribution: Use the information below to generate a citation. Methyl red Answer: D b) Auxanographic technique Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? A. Our members have a unique depth and breadth of knowledge about the discipline. determined to obtain accurate susceptibility results. Which of the following media is used for screening amylase? Which of the following method is not used in isolation and screening of desired microorganisms? screening of microorganisms includes mcq. Which of the following is the primary screening method? On the second day, the symptoms got worse and she was taken to the hospital. A. The greatest resolution in light microscopy can be obtained with ___________ Who proposed that swamps might harbor tiny, disease-causing animals too small to see? A) True 6. C) new batches of microorganisms are screened for increased yield. What does a viral DNA becomes after being associated with the bacterial chromosome? a) Crowded plate technique In an ecosystem, herbivores represent. It is further followed by secondary screening, to check the capabilities and gain information about these organisms. D. Phenol red. The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. Growth Factor producers You can also check this one and can share your opinions on Cell Culture Plates Product. b) Syphilis c) Saccharomyces cerevisiae View Answer, 4. Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. B) False, Pasteurization is used to sterilize milk. The section contains multiple choice questions and answers on nutritional requirements, bacteriological media and physical conditions growth. c) Lactobacilli Which of the following method is not used in isolation and screening of desired microorganisms? (2) It determines which microorganisms can produce a compound. c) nucleotides c) Phenolphthalein 9. a) Crowded plate technique Which of the following foods is NOT made by fermentation? D) starch. 2. Who is considered the "father of Western medicine"? c) Secondary treatment 7. a) changes in the total population 3. 4. View Answer, 11. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. Which of the following was NOT a kingdom in Linnaeuss taxonomy? 2011-2023 Sanfoundry. A) substrates are added to the system all at once and runs until product is harvested. You will get a gown or sheet as a cover. Clean and disinfect surfaces that are touched often. Which is the secondary stage? a) viruses Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. Which of the following foods is NOT made by fermentation? Which of the following yeast can be used to produce microbial protein? d) Indicator dye technique b) mutualistic C. Enrichment Culture technique Which of the following statements is correct regarding secondary screening________. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . 6.8 - 7.2 b. Chapter 3: Classification of Viruses MCQs. Clarification: Phenolphthalein has a pH range between 8.0 10.0. 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. A) True a) The organism must be genetically stable b) Borrelia Our mission is to improve educational access and learning for everyone. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. answer choices. 14. d) spherical It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. Indeed, until Anton von Leeuwenhoek invented . Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. 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. B) inhibit germination of botulism spores. C) use of microbes in sewage and pollution control. Chemical preservatives do NOT include Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? The process is repeated several times until the requirement is met. b) Corticoviridae b) Fungi Done in one or few steps. Which shape of bacteria has been represented in the following diagram? 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. a) 100-fold Crowded plate technique is used for screening of____________. D) removal of waste, inoculation, fermentation, downstream processing. 9. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. C) are products that require additional processing before they can be packaged. View Answer, 26. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. First link in any food chain is usually green plants because. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. 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. 25. a)Microaerophilic. d) Primary treatment c) Nitrosomonas europaea c) Crick Which microorganism(s) among the following perform photosynthesis by utilizing light? screening of microorganisms includes mcqshortest water tower in the world. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. 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. c) prophage d) proteins For which viral disease, vaccine has been recently developed through the use of tissue culture? b) cell wall a) The organism must be genetically stable. 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. the virus must be able to lyse red blood cells. a) Watson View Answer, 18. A) True Which organisms show the zone of inhibition grown on a Petri plate? The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo A. MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? 6. 1. A) True A. What is Microbiology? b) Automatic Type Counter & Classifier Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? Which of the following plate is used to detect and isolate organic acid producers? True Answer: 4. For this dilution, it may be said that the solution was diluted _______ Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. The microorganisms are chosen based on the rest three criteria. The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. It is the organization which has the largest department of Research and Development. False. 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. d) Mycoplasmas b) plaque Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . Complex media are prepared using digests of microbial, animal, or . It is 50,000X magnified image of a bacterium. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. 11 junio, 2022. 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. c) Enrichment Culture technique b) Ferdinand Cohn b) cellulose Some of the frequently asked exam questions are as follows:-. 11. Rhizobium bacteria. Answer: A d) chitin, cellulose, or hemicellulose B. a) Mesophile c) beta-glucosidase The Gram staining is one of the most crucial staining techniques in microbiology. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. B. Thymol blue A test tube contains 9ml distilled water. 7. During their metabolism, microbes produce chemicals, some of which are used by human beings. d) Gram-positive bacteria 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. c) cytoplasm How do you isolate microorganisms in the air? b) Streptomyces olivaceus Which among the following is a pathogenic algae for humans? B) nutrients are continuously fed into the reactor and the product is siphoned off during the run. D) 134 oC for 1 second. True. 37) Which of the following is the selective media used for the cultivation and isolation of. C. Enrichment Culture technique Your health care provider will insert a special tool called a speculum into your vagina. Which of the following is a family of lambda phage viruses? Trophic level in an ecosystem represents. View Answer, 15. b) Thymol blue 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. 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, 3. Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? This is one of the widely used methods and more important. Which of the following plate is used to detect and isolate organic acid producers? Q.1. Answer: A What is required for proper isolation of microorganisms? The microorganisms secrete the enzymes into their nutrient medium to make better use of it. (3) It does not provide many ideas about the production or yield potential of microorganisms. b) gamma rays Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ 1999-2023, Rice University. B. B) inoculation, downstream processing, fermentation, removal of waste. 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. b) 8.0 10.0 Salting, as a preservative, View Answer, 9. uses 100 grams of glucose in a 300ml solution. D. Amino acid producers. A) organic acids. Except where otherwise noted, textbooks on this site 13. c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. B. Which of the following types of mutants can be isolated using the replica plate technique? 10. 5. d) Pasteur 5. A. a) plasmid a) Growth Factor producers 4. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Respiratory pathogens: Includes common viruses and atypical bacteria 2: NP swab: Pathogens may have prolonged shedding time; positive results may not rule out infection from other pathogens. The microorganisms from lakes and rivers can grow at a salt concentration of _________ Screens are made of long, closely spaced, narrow metal bars.