b) cellulose The screening is isolation and detection of microorganisms of interest. C. Enrichment Culture technique View Answer, 26. False. a) Small pox C. 1000-fold b) hexokinase Butanol is obtained by fermenting molasses by. d) chitin, cellulose, or hemicellulose Answer: A It is colourless at pH 8.0 and becomes red at pH above 10.0. 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(1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. a) viruses What is high throughput screening used for? b) ribitol residues Our members have a unique depth and breadth of knowledge about the discipline. 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. 9. Some strains, however, can cause illness. c) Mycobacterium tuberculosis B) sulfites. 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. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. A. Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. b) Auxanographic technique Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. 1. a) parasitic Crowded plate technique is used for screening of____________. A) production of alcoholic beverages by microorganisms. Clarification: Auxanographic technique proceeds with 2-plate preparation. a) Bacillariophycophyta d) Gram-positive bacteria 1. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? Mycoplasma pneumoniae is an unusual bacteria with distinctive colonies which are. B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. d) Physical assay Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. Place the gram of soil into the first tube with saline and SHAKE WELL. Which one of the following is called as the 'brewers yeast'. Vaccination was invented by ____________ c. confining long hair and loose clothing . Primary treatment removes material that will either float or readily settle out by gravity. A) retards growth of Staphylococcus aureus. Which of the following method is not used in isolation and screening of desired microorganisms? This quiz is designed to help you assess how well you have learned the content of this lesson. B. 9. B) inhibit germination of botulism spores. C) is used to prevent growth of halophiles. and you must attribute OpenStax. Answer: B a) True 2. B) mass, controlled culture of microbes to synthesize products. The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. Crowded plate technique 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. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. It is 50,000X magnified image of a bacterium. Thank you so much for sharing. View Answer, 15. b) Streptococcus lactis Full-form of ATCC is _________. View Answer, 8. Which of the following is the most accurate method for microbial assay of antibiotics? a) above 1 percent 1999-2023, Rice University. 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. Chapter 2: Classification of Medically important Bacteria MCQs. b) plaque The serial dilutions of soil are performed and spread on a Petri plate and allowed to grow. b) Auxanographic technique Chemical preservatives do NOT include A) True True. View Answer, 25. They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. d) Rose Bengal Agar plate 3. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. 11. Defined media and complex media are two broad classes of culture media used in microbiology. Wash your hands with soap and water for at least 20 seconds. C. Phenolphthalein (4) Attempt to Stain microorganisms. 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What is the pH range of Bromophenol blue? D. Rose Bengal Agar plate. Done in one or few steps. c) hydrophobic barrier View Answer, 38. The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. You will get a gown or sheet as a cover. a) elongated d) cathode rays Q.1. a. Which one of the following organisms is least likely to cause this illness? d) Indicator dye technique View Answer, 40. Which of the following statements about food chain and energy . The section contains MCQs on diseases caused by fungi and protozoa, therapeutic drugs for fungal treatment and protozoan diseases. Label these plates 1/10 3 through 1/10 6. are not subject to the Creative Commons license and may not be reproduced without the prior and express written The section contains MCQs on spirochetes, negative rods, cocci, facultatively anaerobic gram, rickettsias and chlamydias, mycoplasmas, positive cocci and positive bacteria. 12. In modern plants the screens are cleaned . B) False, Yeast cells prefer aerobic conditions to multiply in number. Each daughter cell is a clone of the parent cell. d) Pedoviridae 2. magic island poem tone Consult Now b) Auxanographic technique 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 . A) True 5. 2. Answer: B 7. A. screening of microorganisms includes mcqshortest water tower in the world. Answer: A d) gene c) 1000-fold Engineering 2023 , FAQs Interview Questions. Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. determined to obtain accurate susceptibility results. a) 100-fold View Answer, 28. In batch fermentation, It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. 40) Biochemical tests are a common and conventional laboratory procedure in the differentiation and identification of enteric bacteria. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. 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. It should not leave damage and odour. d) American Type Classifier and Collection a) Styloviridae A) True screening of microorganisms includes mcq. uses 100 grams of glucose in a 300ml solution. A. a) fats Identification of bacteria by biochemical tests. A. Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? What is required for proper isolation of microorganisms? Phosphorus is essential component of __________ View Answer. c) Nitrosomonas europaea a) x-rays b) The organism must be able to produce a high yield of product. a) plasmid Which of the following method is useful for the isolation and detection of organisms having the ability to produce growth factors? B) False, Mass-produced microbial cells can be used as livestock feed. The normal composition of feces includes all of the following except: A. Bacteria B. (1) It is useful in sorting microorganisms that have real commercial value. 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Who is considered the "father of Western medicine"? c) Saccharomyces cerevisiae 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? Which of the following are the growth morphology of the protozoa? View Answer, 16. 1. b) gamma rays d) Coliform bacteria. The microorganisms from lakes and rivers can grow at a salt concentration of _________ the virus must be able to cross-link red blood cells directly. Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. B. Home Fermentation Technology Objective Questions 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers. View Answer. a) cytoplasmic membrane View Answer, 4. a) glycerol residues The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. 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Secondary screening may be qualitative and quantitative in its approach. D) exposure. D. Indicator dye technique. c) parasitic infection Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. View Answer, 43. When examined he said the cough first started about a month ago, he said no other symptoms appeared in the first week, he complained about the loss of appetite due to which he lost some of his body weight. For e.g., cellulose producers grow on nutrient medium supplied with cellulose. membranes of microorganisms. 9. 5. D) small-scale production is used to synthesize product. a) Leuconostoc citrovorum Answer: D Which of the following plate is used to detect and isolate organic acid producers? It is done by using paper, thin layer or other chromatographic techniques. Answer: A 7. Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. a) Lactobacillus Want to cite, share, or modify this book? Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. b) Advanced treatment The respiratory chain of bacteria is associated with the _____________ Easy detection of the small percentage of useful microorganism. chipotle corporate phone number . Full-form of ATCC is _________ B) heat. d) Thermophile (1) Its a process for the detection and isolation of microorganisms of our interest. 5. 1. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. 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. d) All of the mentioned The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. A. Fecal occult blood B. D. American Type Classifier and Collection. View Answer, 18. A) radiation. c) AIDS Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. Which of the following method is not used in isolation and screening of desired microorganisms? First link in any food chain is usually green plants because. microscopic with a fried egg shape. b) Rhodospirillum Fecal coliform bacteria are a subgroup of total coliform bacteria. 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) Acanthopeltis