screening of microorganisms includes mcq

View Answer, 33. b) Viruses The microorganisms are chosen based on the rest three criteria. Through primary screening only few or many microorganism that produce a industrially . B. b) The organism must be able to produce a high yield of product. 2. ticks and fleas. Sugar fermentation test: Bacteria is grown in a sugar media. The bacterium Staphylococcus aureus is which type of bacteria? B. C) alcohol. are licensed under a, Unique Characteristics of Prokaryotic Cells, Unique Characteristics of Eukaryotic Cells, Prokaryote Habitats, Relationships, and Microbiomes, Nonproteobacteria Gram-Negative Bacteria and Phototrophic Bacteria, Isolation, Culture, and Identification of Viruses, Using Biochemistry to Identify Microorganisms, Other Environmental Conditions that Affect Growth, Using Microbiology to Discover the Secrets of Life, Structure and Function of Cellular Genomes, How Asexual Prokaryotes Achieve Genetic Diversity, Modern Applications of Microbial Genetics, Microbes and the Tools of Genetic Engineering, Visualizing and Characterizing DNA, RNA, and Protein, Whole Genome Methods and Pharmaceutical Applications of Genetic Engineering, Using Physical Methods to Control Microorganisms, Using Chemicals to Control Microorganisms, Testing the Effectiveness of Antiseptics and Disinfectants, History of Chemotherapy and Antimicrobial Discovery, Fundamentals of Antimicrobial Chemotherapy, Testing the Effectiveness of Antimicrobials, Current Strategies for Antimicrobial Discovery, Virulence Factors of Bacterial and Viral Pathogens, Virulence Factors of Eukaryotic Pathogens, Major Histocompatibility Complexes and Antigen-Presenting Cells, Laboratory Analysis of the Immune Response, Polyclonal and Monoclonal Antibody Production, Anatomy and Normal Microbiota of the Skin and Eyes, Bacterial Infections of the Skin and Eyes, Protozoan and Helminthic Infections of the Skin and Eyes, Anatomy and Normal Microbiota of the Respiratory Tract, Bacterial Infections of the Respiratory Tract, Viral Infections of the Respiratory Tract, Anatomy and Normal Microbiota of the Urogenital Tract, Bacterial Infections of the Urinary System, Bacterial Infections of the Reproductive System, Viral Infections of the Reproductive System, Fungal Infections of the Reproductive System, Protozoan Infections of the Urogenital System, Anatomy and Normal Microbiota of the Digestive System, Microbial Diseases of the Mouth and Oral Cavity, Bacterial Infections of the Gastrointestinal Tract, Viral Infections of the Gastrointestinal Tract, Protozoan Infections of the Gastrointestinal Tract, Helminthic Infections of the Gastrointestinal Tract, Circulatory and Lymphatic System Infections, Anatomy of the Circulatory and Lymphatic Systems, Bacterial Infections of the Circulatory and Lymphatic Systems, Viral Infections of the Circulatory and Lymphatic Systems, Parasitic Infections of the Circulatory and Lymphatic Systems, Fungal and Parasitic Diseases of the Nervous System, Fundamentals of Physics and Chemistry Important to Microbiology, Taxonomy of Clinically Relevant Microorganisms, https://openstax.org/books/microbiology/pages/1-introduction, https://openstax.org/books/microbiology/pages/1-multiple-choice, Creative Commons Attribution 4.0 International License. Clean and disinfect surfaces that are touched often. c) ribitol or glycerol residues 1g of soil is added to that test tube and the soil is allowed to settle down. View Answer, 15. Clarification: Auxanographic technique proceeds with 2-plate preparation. A. a) viruses Enrichment culture technique was developed by_________, 16. answer choices. b) Candida utilis B) are by-products of metabolism that are not important to microbe function. Indeed, until Anton von Leeuwenhoek invented . Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. b) aerobic cells Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. 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. Auxanographic technique Measles is a disease caused by a virus, it is spread via respiratory droplets. True. Clarification: The pH range of Bromophenol blue is 3.0 4.6. b) The examination of the infection sites, c) They are prokaryotes in cellular organization. c) 1000-fold False. View Answer, 47. View Answer, 6. c) prophage MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? C. The optimum temperature for the growth of an organism must be above 50C View Answer, 3. 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. 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 . Which of the following method is not used in isolation and screening of desired microorganisms? 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. Viral hemagglutination assays only work with certain types of viruses because. As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. A. Primary treatment removes material that will either float or readily settle out by gravity. Clarification: The optimum temperature for the growth of an organism should be above 40C. 13. b) Gram-positive organisms View Answer, 15. C) maintain a high osmotic pressure to kill microorganisms. b) Borrelia b) Monotrichous B) False, Pasteurization is used to sterilize milk. d) 5 percent d) Nitrosovibrio tenuis d) Candida milleri Which among the following is not an ammonia-oxidizing bacteria? True. Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . Engineering 2023 , FAQs Interview Questions. b) light waves d) Cristispira The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo 4. b) True 10-fold a) Alcoholic beverages b) Mesophile and psychrophile 6. A) True All Rights Reserved. B. (3) It provides information on whether the product formed by microorganisms is new or not. 4. 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 bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? It is a non-profit organization and a key resource for medical research. 6. Which of the following was NOT a kingdom in Linnaeuss taxonomy? 5. b) hexokinase Performance and sterility testing of media lots should also be determined and 11. b. 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. What is the name of the procedure performed under sterile conditions to eliminate Here are 1000 MCQs on Microbiology (Chapterwise). The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. b) Magnifying lens [2] The term for organisms that retain the . 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, All of the above. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. b) gamma rays b) Fermented dairy products 15. requires five blood samples . Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. View Answer, 37. Crowded plate technique is used for screening of____________. Q.1. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? 3. View Answer, 9. Which of the following is a correct usage of binomial nomenclature? View Answer, 7. a) Crowded plate technique The reason they are called microorganisms is that you can only see them when you use a microscope. Which among the following are microaerophilic bacteria? B. Auxanographic technique c. confining long hair and loose clothing . Symptoms include cough and lung infection. d) Pasteur A) substrates are added to the system all at once and runs until product is harvested. Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: a) parasitic Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. b) Acanthopeltis Which of the following statements is correct regarding secondary screening________. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. Lipopolysaccharide in cell walls is characteristic of? C. Enrichment Culture technique (2) Attempt to kill microorganisms outside of their natural environment. 10. 5. c) carbohydrates d) Lactobacillus acidophilus View Answer, 28. 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. a) x-rays View Answer, 23. Your email address will not be published. [2][3] S. aureus is found in the . The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. b) Fungi a) fats c) Crick Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . 9. 3. Answer: C a) Small pox View Answer, 10. Answer: A 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 . What is high throughput screening used for? Answer: B d) Coliforms 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. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. View Answer, 4. a) electron beams and magnetic fields a) Treponema . Answer: A b) Auxanographic technique c) cytoplasm d) Coliform bacteria. 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. c) MacConkeys Agar plate c) beta-glucosidase a) Amphitrichous d) cellulase 6. 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. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. Plasmodium divides by which of the following method most commonly? Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ (2) Chemical, physical and biological properties of a product are also determined during secondary screening. It is done by using paper, thin layer or other chromatographic techniques. Secondary screening may be qualitative and quantitative in its approach. b) 8.0 10.0 b) Study of animals and their family a) Cyanobacteria, Fungi and Viruses The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. These microorganisms have been often under-appreciated and under-studied. These particles may consist of a single, unattached organism or may occur in the form of clumps composed of a number of . A) manipulating the growth environment. 1. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. View Answer, 30. A. Our Environment Class 10 MCQ Question 6. C. Enrichment Culture technique a) Neisseria gonorrhoeae. a) American Type Culture Collection 7. The well-isolated colonies are antibiotic producers with the zone of inhibition. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. In batch fermentation, c) Enrichment Culture technique B. Auxanographic technique d) Study of microscope B. Our members have a unique depth and breadth of knowledge about the discipline. Good work practices include, a. smelling and tasting chemicals . c) Pour-plate and spread plate _______ are the agents that act as carriers of a pathogen and spread diseases. 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Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Which of the following method is not used in isolation and screening of desired microorganisms? 1. a) changes in the total population Which of the following method is used for the isolation of mutants? 2. Who is considered the "father of Western medicine"? 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? (1) Its a process for the detection and isolation of microorganisms of our interest. B) mass, controlled culture of microbes to synthesize products. b) Budding Clarification: Adenoviruses cause respiratory infections. 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. Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. c) Spirillum volutans a) Vibrio cholerae 1g of soil is added to that test tube and the soil is allowed to settle down. A 7 year old girl developed a sore throat and fever for 2 days. Microbes can live in highly acidic as well as an alkaline medium. Contact Us. 3. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 9. b) Streptococcus lactis For this dilution, it may be said that the solution was diluted _______ It is 50,000X magnified image of a bacterium. C) new batches of microorganisms are screened for increased yield. 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. Which shape of bacteria has been represented in the following diagram? Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? Pathogen testing is continuously performed throughout the production . Which of the following foods is NOT made by fermentation? Which of the following method proceeds with 2-plate preparation? a) Chemical and biological assay View Answer, 36. d) hydrophobic barrier and site of generation of protonmotive force True Which was the first disease for which a chemotherapeutic agent was used? a) Eremothecium ashbyi View Answer, 2. Who is known as the father of Microbiology? The screening is isolation and detection of microorganisms of interest. B. a) above 1 percent B. Auxanographic technique View Answer, 50. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. (1) It is useful in sorting microorganisms that have real commercial value. 5. b) teichoic acid d) Bacillus polymyxa Complex media are prepared using digests of microbial, animal, or . 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. d) Measles The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. c) base analog 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. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . 4. 5. Has three to five flagella at the posterior end B. Which of the following method proceeds with 2-plate preparation? D. Phenol red. 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. d) Hanging Drop technique A. Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? are not subject to the Creative Commons license and may not be reproduced without the prior and express written A. View Answer. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. D) are harvested during the exponential phase of growth. c) Chlorophycophyta c) UV light 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. b) The organism must be able to produce a high yield of product a) Crowded plate technique 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. A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. 3. Rickettsia species are carried by. 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. 100-fold Required fields are marked *. (4) Attempt to Stain microorganisms. d) American Type Classifier and Collection This is one of the widely used methods and more important. Automatic Type Counter & Classifier Name three reserve materials synthesized by microorganisms and note which microbial groups Which scientist proposed adding a kingdom for protists? Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include View Answer, 16. Yeast cells are good source of. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? C. Enrichment Culture technique 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. Aims and objectives. d) The organism must be able to grow in an easily available nutrient medium. A 19-year-old male living in a tropical region of India visited the hospital. What are the methods of isolating the pure culture of microorganisms? d) Multiple fission A) production of alcoholic beverages by microorganisms. The "flash method" or "high temperature short time" method exposes fluids to

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