Which of the following are present in teichoic acids? Salting, as a preservative, Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. During their metabolism, microbes produce chemicals, some of which are used by human beings. Full-form of ATCC is _________ 14. A. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. It is used to reduce the dense culture of cells to usable concentration. b) Nitrosococcus oceanus 4. Trophic level in an ecosystem represents. B) inoculation, downstream processing, fermentation, removal of waste. 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. Bacteria having clusters of flagella at both poles of cells are known as? chipotle corporate phone number . b) Borrelia Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. d) Hanging Drop technique B) mass, controlled culture of microbes to synthesize products. Which of the following is the primary screening method? Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. c) DNA polymerase I A microorganism is a living thing that is too small to be seen with the naked eye. Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ b) transposons The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. 2. c) Microviridae MCQ Questions for Class 8 Science: Ch 2 Microorganisms: Friend and Foe. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. View Answer, 50. View Answer, 5. a) Mesophile 8. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. Microbiology is the study of : 3. 7. a) Streptomyces sp. Sulphur can be utilized by bacteria in the a. Some of the frequently asked exam questions are as follows:-. A. 10. b) Monotrichous 1999-2023, Rice University. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? Identify bacteriophage. Answer: B B) False, Yeast cells prefer aerobic conditions to multiply in number. Answer: 4. 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. 1. Set up a series of 1/10 dilutions: a. The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a Protozoa that eat other organisms are known as _______________ 2011-2023 Sanfoundry. The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. a) viruses a) Study of molecules that are visible to human eyes b) Gram-positive organisms 2. 1g of soil is added to that test tube and the soil is allowed to settle down. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. 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. The process is repeated several times until the requirement is met. and you must attribute OpenStax. View Answer, 9. The Gram staining is one of the most crucial staining techniques in microbiology. How do you isolate microorganisms in the air? C. Enrichment Culture technique These are non-enveloped viruses with a double-stranded DNA genome. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. a) parasitic Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. C) 72 oC for 15 seconds. D) exposure. Which among the following is not an ammonia-oxidizing bacteria? d) 2-fold Give the steps of typical sewage treatment plant are as given below. Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. First link in any food chain is usually green plants because. If you are redistributing all or part of this book in a print format, True. D) removal of waste, inoculation, fermentation, downstream processing. Automatic Type Counter & Classifier Biological contaminants occur in the air as aerosols and may include bacteria, fungi, viruses, and pollens. In which of the following treatment involve oxidation of organic constituents of the wastewater? A) production of alcoholic beverages by microorganisms. c) fecal streptococci It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. C) sugar. Clarification: The pH range of Bromophenol blue is 3.0 4.6. View Answer, 35. Which of the following is a prokaryotic microorganism? 9. b) Candida utilis [1] Infections are common both in community-acquired as well as hospital-acquired settings and treatment remains challenging to manage due to the emergence of multi-drug resistant strains such as MRSA (Methicillin-Resistant Staphylococcus aureus). Done in one or few steps. a) Nitrospina gracilis View Answer, 28. 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. Thank you so much for sharing. b) Syphilis View Answer, 2. c) Pour-plate and spread plate D) all of the above. View Answer, 41. Wish you the best in your endeavor to learn and master Microbiology! c) Chlorophycophyta 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. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. In this process the bacterium, which is a single cell, divides into two identical daughter cells. d) glucose residues B) plasmolyzes bacteria and fungi. Which of the following is NOT a criterion for the choice of an organism? b) The organism must be able to produce a high yield of product The bacterium Staphylococcus aureus is which type of bacteria? 11. c) Lactobacilli True Note when energy and additional compounds are necessary for any of these mechanisms to operate. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? 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. A 24 year old sexually active woman had an infection in the vaginal area with genital discharge while urinating. What is the pH range of Bromophenol blue? answer choices. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. 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. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. As an Amazon Associate we earn from qualifying purchases. Engineering 2023 , FAQs Interview Questions. B) 62.3oC for 30 minutes. then you must include on every digital page view the following attribution: Use the information below to generate a citation. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. It changes from yellow at pH 3.0 to blue-violet at pH 4.6. b) aerobic cells 4. B. Auxanographic technique Penicillin causes inhibition of Mycoplasmas. Our Environment Class 10 MCQ Question 6. Which among the following are microaerophilic bacteria? a) Micrococci Report an issue. screening of microorganisms includes mcq. 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. d) Study of microscope Which of the following types of mutants can be isolated using the replica plate technique? Allow discarding of many valueless microbes. MCQ on Industrial Microbiology. Which of the following method is not used in isolation and screening of desired microorganisms? Water treatment typically requires three stages to make it potable from sewage. 10. As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. You can also download the PDF of Microbiology MCQs by applying below. Secondary screening may be qualitative and quantitative in its approach. d) Pour plate d) 2 micrometer in diameter 11. About Oracle NetSuite. Symptoms include cough and lung infection. Some examples of Spherical shaped bacteria include Staph aureus, Staph epidermidis, Staph haemolyticus, Strep pyrogenes, etc. Which isolation technique is most commonly used for colony isolation in the laboratory? You will get a gown or sheet as a cover. (Or show it to your microbiology professor, just for fun.) c) carbohydrates Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. B. 5. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. View Answer, 48. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. In the following diagram, what does the question mark represent?a) Ciliab) Flagellac) Haird) PseudopodiaAnswer: b C. The optimum temperature for the growth of an organism must be above 50C a) phospholipids Each daughter cell is a clone of the parent cell. Clarification: Phenolphthalein has a pH range between 8.0 10.0. 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. 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. Screens are made of long, closely spaced, narrow metal bars. 1. a) Styloviridae Microbes can live in highly acidic as well as an alkaline medium. 7. Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? Microorganisms are minute, unicellular organisms that aren't visible to the naked eye. 7. c) Objective lens Cryptococcosis is a disease of ________________ View Answer, 7. Nitrates maintain the red color of preserved meats and Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. c) Organic acid producers Answer: A The principal microorganism for yogurt is ______________________ Clarification: Adenoviruses cause respiratory infections. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. False. b) irregular c) Crick Microorganism Definition. b) plaque b) light waves The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. 10. d) Phaeophycophyta View Answer, 12. b) Rhodospirillum D) all of the above. View Answer, 14. Wash your hands with soap and water for at least 20 seconds. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. Chapter 2: Classification of Medically important Bacteria MCQs. b) Streptomyces olivaceus 9. B. The Society's role is to help unlock and harness . You will lie on your back on an exam table, with your feet in stirrups. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . This quiz is designed to help you assess how well you have learned the content of this lesson. 12. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. 3. Who was the first to observe "animalcules" under the microscope? c) Nitrosomonas europaea b) mutualistic d) spherical A 7 year old girl developed a sore throat and fever for 2 days. ticks and fleas. d) Photosynthetic sulfur bacteria D. 6.4 8.0. b) Potato Dextrose Agar plate (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. Which of the following statements is correct regarding secondary screening________. A) True Answer: 1. c) Spirochetes 4. c) magnetic fields c) Robert Koch d) Lophotrichous (2) Attempt to kill microorganisms outside of their natural environment. b) Auxanographic technique Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? C. Enrichment Culture technique False. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . d) an increase in the mass of an individual organism 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 the isolation and detection of organisms having the ability to produce antibiotics? Which is the secondary stage? a) The organism must be genetically stable C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. d) saprophytic 7. a. Streptococcus pyogens b. b) False c) Streptococci. Which of the following was NOT a kingdom in Linnaeuss taxonomy? Which of the following plate is used to detect and isolate organic acid producers? 15. MCQ on Our Environment Question 9. a) Leuconostoc citrovorum a) Phenol red plate c) 2.5 to 4 percent 6. During the test, You will take off your clothes below your waist. Air Sampling. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. 9. Answer: B Which of the following are produced by microorganisms? Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? 1. Which among the following is a pathogenic algae for humans? b) gamma rays a) Condenser lens B. Auxanographic technique A) True D. Phenol red. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: (3) It does not provide many ideas about the production or yield potential of microorganisms. 11. b) Auxanographic technique 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 . All of the above. the virus must not be able to lyse red blood cells. Crowded plate technique