d) DNA polymerase II A) True Which of the following is NOT a criterion for the choice of an organism? 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, Your email address will not be published.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. Screening includes primary screening and secondary screening. consent of Rice University. A) retards growth of Staphylococcus aureus. MCQ's For Lab Technician And Technologists - Part 6 - Lab Tests Guide View Answer, 13. Has three to five flagella at the posterior end B. The well-isolated colonies are antibiotic producers with the zone of inhibition. Clarification: The pH range of Bromophenol blue is 3.0 4.6. d) saprophytic 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. Which of the following is NOT a criterion for the choice of an organism? c) Study of organisms that are not visible to naked eyes This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. Microbial Food Spoilage- Types of microorganisms with examples For e.g., cellulose producers grow on nutrient medium supplied with cellulose. During their metabolism, microbes produce chemicals, some of which are used by human beings. determined to obtain accurate susceptibility results. a) Watson Symptoms include cough and lung infection. A skin biopsy test was performed and the infection was diagnosed to be a parasitic infection. The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. a) Crowded plate technique a) S mallpox View Answer, 33. 11. Which among the following are Spirochetes? 2. b) 0.5 to 1.0 micrometer in diameter Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. a) chemical compounds The screening is isolation and detection of microorganisms of interest. c) carbohydrates Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. Answer: B a) Small pox 2. Clarification: The prototrophs are the organisms which are capable of synthesizing all the growth requirements by themselves whereas auxotroph is dependent on prototrophs. a) x-rays 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. 3. Which of the following is a family of lambda phage viruses? a) Spread-plate Blood C. Electrolytes D. Water: 5. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. b) Killing pathogenic microorganisms c) Killing spores d) None of these answer-A 3. Which of the following are true for cytoplasmic membrane? You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. 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. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. During the test, You will take off your clothes below your waist. 11 junio, 2022. Screening of Microorganisms MCQ with Answers - YB Study d) mitochondrial membrane 6. Note when energy and additional compounds are necessary for any of these mechanisms to operate. A) True MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? View Answer, 3. D. Indicator dye technique. c) Streptococci. Your email address will not be published. A. View Answer, 32. A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. a) glycerol residues 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. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. 3. 13. View Answer, 11. d) hydrophobic barrier and site of generation of protonmotive force Everything you need to know about water and wastewater microbiology. c) Nitrosomonas europaea D) are harvested during the exponential phase of growth. 9. d) 6.4 8.0 Which of the following method is not used in isolation and screening of desired microorganisms? c) fecal streptococci 4. a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. b) Ferdinand Cohn The organism must be able to produce a high yield of product c) 5 8 The Gram staining is one of the most crucial staining techniques in microbiology. View Answer, 9. It belongs to the phthalein family that is employed as an acid-base indicator. View Answer, 37. Clarification: Phenolphthalein has a pH range between 8.0 10.0. 3. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. 1. 2. 4.1: Prokaryote Habitats, Relationships, and Microbiomes. View Answer, 46. Which of the following plate is used to detect and isolate organic acid producers? Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. c) an increase in the size of an individual organism Answer: A Nitrates maintain the red color of preserved meats and microbiology mcqs online test / microbiology mcq quiz / microbiology the virus must be able to cross-link red blood cells directly. D. The organism must be able to grow in an easily available nutrient medium. View Answer, 6. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. (4) Attempt to Stain microorganisms. Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. The section contains MCQs on microorganisms, industry, industrial uses of bacteria, molds and yeasts, genotypic changes, bacterial recombination and conjugation, bacterial transduction and transformation. Primary screening of organic acids or amines producing organisms is done by__________, (2) Dye such as neutral red or bromothymol blue is used. Q.1. 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. d) Nitrosovibrio tenuis (3) It provides information on whether the product formed by microorganisms is new or not. d) Pour plate c) Enrichment Culture technique 10. True 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 . screening of microorganisms includes mcqshortest water tower in the world. A) production of alcoholic beverages by microorganisms. Germs: Protect against bacteria, viruses and infections 11. View Answer, 14. Screening of industrial Microorganisms Quiz - Quizizz It is colourless at pH 8.0 and becomes red at pH above 10.0. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. Viral hemagglutination assays only work with certain types of viruses because. How do you isolate microorganisms in the air? Eubacteria - Definition and Examples - Biology Online Dictionary 10. The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. Ch. 20 Multiple Choice - Microbiology | OpenStax b) Auxanographic technique View Answer, 45. b) Gram-positive organisms Which of the following yeast can be used to produce microbial protein? View Answer, 35. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo c) Microviridae d) Malaria 2. c) The optimum temperature for the growth of an organism must be above 50C are not subject to the Creative Commons license and may not be reproduced without the prior and express written Clarification: ATCC stands for American Type Culture Collection. Performance and sterility testing of media lots should also be determined and Enrichment culture technique was developed by_________, 16. Fermentation Technology Interview Questions and Answers - Sanfoundry uses 50 grams of glucose in a 500ml solution. Clarification: Adenoviruses cause respiratory infections. Children are more susceptible to this disease. The process is repeated several times until the requirement is met. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Plasmodium divides by which of the following method most commonly? Answer: A Microorganisms - Groups, Characteristics, Importance and Uses - VEDANTU 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, Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? d) All of the mentioned d) All of the mentioned d) cellulase A. B. Auxanographic technique B) sulfites. In which of the following treatment involve oxidation of organic constituents of the wastewater? d) Coxiella burnetii It is 50,000X magnified image of a bacterium. Which of the following statements about food chain and energy . 30 seconds. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? B) are by-products of metabolism that are not important to microbe function. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . 3. It will immensely help anyone trying to crack an exam or an interview. Principles of Epidemiology: Lesson 5 Quiz|Self-Study Course SS1978|CDC The bacterium Staphylococcus aureus is which type of bacteria? Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. Answer: D View Answer, 6. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . 14. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. d) Indicator dye technique c) nucleotides 12. 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. The reason they are called microorganisms is that you can only see them when you use a microscope. Gram negative bacteria take the color of safranin stain and appear pink or red. MCQ on Industrial Microbiology - MCQ Biology.com Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include b) Automatic Type Counter & Classifier 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. D) all of the above. 44) Which of the following microorganisms can grow only as strict intracellular parasites? 250+ TOP MCQs on Microbes and Answers 2023 - FAQs Interview Questions It should be active and stable and environmentally safe. The section contains questions and answers on light microscope, microbial Stains, transmission and scanning electron microscope. Which of the following are present in teichoic acids? C) maintain a high osmotic pressure to kill microorganisms.