Cellulose is degraded to cellobiose by the enzyme __________________ Microorganism Definition. Note when energy and additional compounds are necessary for any of these mechanisms to operate. 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. A. What is the name of the procedure performed under sterile conditions to eliminate d) spherical d) Coliform bacteria. Easy detection of the small percentage of useful microorganism. b) Fungi D) 134 oC for 1 second. a) anaerobic cells 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. c) Nitrosomonas europaea 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. View Answer, 41. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. c) Microviridae c) holozoic It should have a fast rate of kill of micro-organisms. A) True Blood C. Electrolytes D. Water: 5. (3) Attempt to synthesized secondary metabolites outside of their natural environment. Trophic level in an ecosystem represents. The respiratory chain of bacteria is associated with the _____________ Answer: A 5. d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture d) Multiple fission Clarification: Auxanographic technique proceeds with 2-plate preparation. Clarification: The Enrichment culture technique is useful for the detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium. 4. membranes of microorganisms. MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. c) Enrichment Culture technique 12. a) Spread-plate 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 . View Answer, 34. c) Chlorophycophyta View Answer, 12. As an Amazon Associate we earn from qualifying purchases. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. Which of the following gram positive bacteria is a strict anaerobe and can only grow in the absence of oxygen? Which among the following is not an ammonia-oxidizing bacteria? 1. c) Saccharomyces cerevisiae Which of the following morphological characteristics is an important identification characteristic of. The lesson covers the complete explanation of class 8 Chapter 2 Microorganisms.Topics covered are Introduction to Micro-organisms and microbiology, different types of Micro-organisms, Useful and Harmful Micro-organisms. View Answer, 14. Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. a) Treponema C. MacConkeys Agar plate The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. b) False b) coliforms In this process desired microorganism is generally isolated from a natural environment like soil, which . 2. In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b 4. Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed? Bacteria having clusters of flagella at both poles of cells are known as? View Answer, 46. c) Psychrophile a) DNA polymerase III D) prevent mold. d) proteins The organism must be able to produce a high yield of product Which of the following types of microorganisms is photosynthetic? C. Enrichment Culture technique Auxanography technique is employed for detecting microorganisms able to produce__________. c) DNA polymerase I A. Which of the following is a prokaryotic microorganism? 6. All Rights Reserved. c) Streptococcus thermophilus 13. b) Auxanographic technique microscopic with a fried egg shape. It is important to find and resolve the source of the contamination. Protozoa that eat other organisms are known as _______________ uses 50 grams of glucose in a 500ml solution. View Answer, 4. Answer: 4. View Answer, 10. A) manipulating the growth environment. a) Crowded plate technique The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? Chapter 2: Classification of Medically important Bacteria MCQs. False. The microorganisms from lakes and rivers can grow at a salt concentration of _________ 9. b) gamma rays (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, 33. C. Enrichment Culture technique B. a) plasmid Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. Which of the following method proceeds with 2-plate preparation? Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ a) Leuconostoc mesenteroides a) Micrococci Our members have a unique depth and breadth of knowledge about the discipline. Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? a) cellulose dehydrogenase 3. 2. D. Rose Bengal Agar plate. Everything you need to know about water and wastewater microbiology. The production of substances in industrial microbiology occur in the sequence: Symptoms include cough and lung infection. 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. False. C) inoculation, fermentation, downstream processing, removal of waste. The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. D. Hanging Drop technique. b) teichoic acid Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. d) Fungi a) Shortest wavelength of visible light used Chrysolaminarin is the reserved food of ___________________ The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. 8. chp 25 microbiology 211 mcq. Q.1. Full-form of ATCC is _________. A) production of alcoholic beverages by microorganisms. Which of the following is a type of fungal microorganism? 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. Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? d) Indicator dye technique A) heat below 100 oC. are not subject to the Creative Commons license and may not be reproduced without the prior and express written Chapter 4: Clinical Virology MCQs. 3. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . Glycolysis can occur in ___________ (2) Chemical, physical and biological properties of a product are also determined during secondary screening. Some of the frequently asked exam questions are as follows:-. View Answer, 29. b) Automatic Type Counter & Classifier It is a non-profit organization and a key resource for medical research. B. Thymol blue 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. c) Enrichment Culture technique Nitrates maintain the red color of preserved meats and View Answer, 44. Dec 20, 2022 OpenStax. pH, cations, thymidine or thymine, use of supplemented media). d) Hanging Drop technique 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? 1. View Answer, 45. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Gram negative bacteria take the color of safranin stain and appear pink or red. A food chain comprising birds, green plants, fish and man. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a View Answer, 38. b) Mesophile and psychrophile 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. c. confining long hair and loose clothing . b) Syphilis Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? B. b) Streak-plate B) 62.3oC for 30 minutes. c) Study of organisms that are not visible to naked eyes A) organic acids. Which of the following method proceeds with 2-plate preparation? 4. View Answer, 3. 2. b) irregular D) all of the above. Which of the following is the standard resource for identifying bacteria? a) 100-fold 14. Avoid contaminated food and water. c) Organic acid producers What is high throughput screening used for? uses 100 grams of glucose in a 300ml solution. Chemical preservatives do NOT include The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . a) Regeneration Which shape of bacteria has been shown in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: dClarification: The following diagram represents spherical shaped bacteria, magnified 1500X. 1. What is required for proper isolation of microorganisms? OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. 4.0 SECONDARY SCREENING OF MICROORGANISMS . 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 was NOT a kingdom in Linnaeuss taxonomy? A. 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. 26. View Answer, 8. View Answer, 4. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. a) Watson 6. c) 2mm in diameter 7. Which is the secondary stage? d) Indicator dye technique 1. c) Enrichment Culture technique C. American Type Counter Collection 7. c) cytoplasm Answer: A Good work practices include, a. smelling and tasting chemicals . Answer: 1. You can also prevent infections through: Hand-washing. Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. Besides macroscopic plants and animals, microbes are the major components of biological systems on this earth. D. Indicator dye technique. (1) Its a process for the detection and isolation of microorganisms of our interest. b) Study of animals and their family 5. Clarification: ATCC stands for American Type Culture Collection. Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. Except where otherwise noted, textbooks on this site Which of the following is the source of Vitamin A. 4. b) Microbacteria You will lie on your back on an exam table, with your feet in stirrups. 5. d) American Type Classifier and Collection a) cytoplasmic membrane Secondary screening may be qualitative and quantitative in its approach. Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. a) electron beams and magnetic fields 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. View Answer. Here are 1000 MCQs on Microbiology (Chapterwise). These are non-enveloped viruses with a double-stranded DNA genome. Clean and disinfect surfaces that are touched often. b) Auxanographic technique 7. Secondary metabolites B) sulfites. Aims and objectives. Which of the following method is useful for the detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? a) changes in the total population In an ecosystem, herbivores represent. For which viral disease, vaccine has been recently developed through the use of tissue culture? d) Phaeophycophyta b. View Answer, 24. a) Alcoholic beverages 5. The process is repeated several times until the requirement is met. Full-form of ATCC is _________ C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. What are the methods of isolating the pure culture of microorganisms? These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. About Oracle NetSuite. b) cell wall B. Auxanographic technique Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. 5. Clarification: Adenoviruses cause respiratory infections. D) small-scale production is used to synthesize product. Which of the following dye is colourless at acidic pH and becomes red at basic pH? Which shape of bacteria has been represented in the following diagram? c) rod shaped a) False Which isolation technique is most commonly used for colony isolation in the laboratory? A) True c) nucleotides a) Final treatment then you must include on every digital page view the following attribution: Use the information below to generate a citation. Crowded plate technique 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. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. b) plaque 3. a) Crowded plate technique Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. View Answer, 5. The organic acid producers produce acid which changes the colour of media and is thus detected easily. What is the fecal test that requires a 3-day specimen? View Answer, 2. Who is known as the father of Microbiology? 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. lauren conrad and stephen colletti /; 2. d) Physical assay ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. B) False, When in doubt, throw it out. The "flash method" or "high temperature short time" method exposes fluids to A) True If you are redistributing all or part of this book in a print format, A) retards growth of Staphylococcus aureus. View Answer, 13. The greatest resolution in light microscopy can be obtained with ___________ d) Malaria Answer: B The bacterium Staphylococcus aureus is which type of bacteria? 10. Allow discarding of many valueless microbes. b) Rhodospirillum B) heat. 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 . b. not washing hands before and after lab . a) Cyanobacteria, Fungi and Viruses A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. 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? 5. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . b) Thymol blue A. The Society's role is to help unlock and harness . A. c) prophage c) Enrichment Culture technique C. Enrichment Culture technique The screening is isolation and detection of microorganisms of interest. A. b) Corticoviridae D) all of the above. c) Robert Koch Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. 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. Rickettsia species are carried by. Done in one or few steps. 5. b) below 1 percent Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. c) Chlorella Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? d) chitin, cellulose, or hemicellulose A routine GTT: is three hours long. Which isolation technique is most effective? 25. a)Microaerophilic. 44) Which of the following microorganisms can grow only as strict intracellular parasites? The organism must be genetically stable 6. d) Prototheca C. 5 8 How do you isolate microorganisms from the soil? First link in any food chain is usually green plants because. B) False, Hot foods must be maintained above 60 oC to inhibit microbial growth. Report an issue. The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. View Answer, 9. 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. Which of the following plate is used to detect and isolate organic acid producers? 3. a) Phenol red plate 11. a) Lactobacillus 9. Chapter 3: Classification of Viruses MCQs. Which of the following method can be used to determine the number of bacteria quantitatively? b) Xanthophycophyta It changes from yellow at pH 3.0 to blue-violet at pH 4.6. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? Which of the following is NOT a criterion for the choice of an organism? Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. Clarification: The pH range of Bromophenol blue is 3.0 4.6. Crowded plate technique To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'. View Answer, 15. b) Auxanographic technique The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. It will immensely help anyone trying to crack an exam or an interview. These particles may consist of a single, unattached organism or may occur in the form of clumps composed of a number of . View Answer, 6. B. Auxanographic technique Juli 2022 B. It is done by using paper, thin layer or other chromatographic techniques. Which of the following is a correct usage of binomial nomenclature? View Answer, 9. Crowded plate technique is used for screening of____________. d) Nitrosovibrio tenuis A) are among the most widely used preservatives. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. 4. c) Secondary treatment This reduces the cooling costs in large scale fermenters. c) Lactobacilli 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. a) Thiobacillus thiooxidans 9. Rhizobium bacteria. Binary fission begins when the DNA of the bacterium divides into two (replicates). 9. What is the pH range of Bromophenol blue? 1. b) Atrichous bacteria. d) Cristispira c) Bacillus thuringiensis 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. Genetic engineering is also used to improve the biodegradation . b) Potato Dextrose Agar plate 11. Which of the following is a family of lambda phage viruses? Therefore, the exact composition of a defined medium is known. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. A. In this process the bacterium, which is a single cell, divides into two identical daughter cells. 4. D. Indicator dye technique. a) Small pox A) True a) Methyl red a) Crowded plate technique a) Algae b) mycotic infection The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . Prokaryotes are unicellular microorganisms whose cells have no nucleus. View Answer, 36. The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published.
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