d) Pour plate Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella . Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. 1. 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. A) production of alcoholic beverages by microorganisms. Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. Q. Q.1: Screening of microorganisms includes . Screens are made of long, closely spaced, narrow metal bars. Ans: The steps adopted in a typical sewage treatment plant are as given below: ADVERTISEMENTS: B. Auxanographic technique b) Rabies Done in one or few steps. Salting, as a preservative, 100-fold A) True Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. a) The organism must be genetically stable. A. a) parasitic 13. B. a) electron beams and magnetic fields Full-form of ATCC is _________ b) Acanthopeltis 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. C. The optimum temperature for the growth of an organism must be above 50C 3. 2. b) 10-fold 10. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. Rhizobium bacteria. Creative Commons Attribution License D) are harvested during the exponential phase of growth. Answer: 1. Which of the following foods is NOT made by fermentation? Label these plates 1/10 3 through 1/10 6. b) vitamins 6. Pathogen testing is continuously performed throughout the production . 3. Who was the first to observe "animalcules" under the microscope? a) glycerol residues Multiple Choice. b) Gram-positive organisms D) removal of waste, inoculation, fermentation, downstream processing. 10. The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. You will lie on your back on an exam table, with your feet in stirrups. 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. Which of the following microorganism produces dextran? A. d) Coliforms 1. Engineering 2023 , FAQs Interview Questions, on 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, Fermentation Technology Objective Questions, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 1 and Answers, 300+ TOP MCQs on Database Screening and Screening by Nucleic Acid Hybridisation 2 and Answers, 250+ MCQs on Media for Industrial Fermentations Minerals, Growth Factors and Buffers and Answers, 250+ MCQs on Improvement of Industrial Microorganisms and Answers, 250+ TOP MCQs on Vibration Isolation and Transmissibility and Answers, 250+ TOP MCQs on Multiversion Schemes, Snapshot Isolation, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, 250+ TOP MCQs on Transaction Isolation Levels and Answers, 250+ TOP MCQs on Enzyme Extraction and Isolation Choice of Enzyme Sources and Answers, 250+ MCQs on Microbial Growth Kinetics Batch Culture and Answers, 200+ TOP CELL CULTURES and CHARACTERISTICS Interview Questions and Answers, 200+ TOP Microbiology Of Foods Interview Questions with Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ MCQs on Brewing Yeast Differentiation (Traditional Methods) and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 300+ TOP Cell Cultures & Characteristics Objective Questions and Answers, 300+ TOP Microbiology of Foods Objective Questions & Answers. View Answer, 13. the virus must be able to cross-link red blood cells directly. b) 8.0 10.0 Allow discarding of many valueless microbes. Which of the following foods is NOT made by fermentation? 38) All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, b) Used for the culture of common fastidious bacteria, c) It is used for the culture of hemolytic bacteria. 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. 12. c. confining long hair and loose clothing . The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . A microorganism is a living thing that is too small to be seen with the naked eye. c) Secondary treatment Place the gram of soil into the first tube with saline and SHAKE WELL. are not subject to the Creative Commons license and may not be reproduced without the prior and express written D. 6.4 8.0. Cryptococcosis is a disease of ________________ Which of the following is NOT a criterion for the choice of an organism? Answer: A In which of the following treatment involve oxidation of organic constituents of the wastewater? Due to the climatic and geographical diversity of Nepal, a wide range of microorganisms with potent source of antimicrobials are available. 15. C. Enrichment Culture technique 1g of soil is added to that test tube and the soil is allowed to settle down. C) sugar. a) Algae c) nucleotides It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. a) above 1 percent A) retards growth of Staphylococcus aureus. is affected by the patient's food intake on the day of testing. A routine GTT: is three hours long. 8. b) Magnifying lens 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. magic island poem tone Consult Now uses 50 grams of glucose in a 500ml solution. View Answer. b) Biological assay In this process desired microorganism is generally isolated from a natural environment like soil, which . What is required for proper isolation of microorganisms? d) 2-fold About Oracle NetSuite. Sanfoundry Global Education & Learning Series Fermentation Technology. Answer: A Which of the following are important primary screening techniques? View Answer, 19. c) Enrichment Culture technique A. Which of the following are produced by microorganisms? B. Auxanographic technique A. 11. c) Pour-plate and spread plate d) an increase in the mass of an individual organism It is done by using paper, thin layer or other chromatographic techniques. lack of cell wall. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. Answer: 4. In this process the bacterium, which is a single cell, divides into two identical daughter cells. a) True A food chain comprising birds, green plants, fish and man. Answer: C a) Crowded plate technique 4. Blood C. Electrolytes D. Water: 5. Which of the following plate is used to detect and isolate organic acid producers? 6. During their metabolism, microbes produce chemicals, some of which are used by human beings. b) Mesophile and psychrophile C) alcohol. Clarification: Adenoviruses cause respiratory infections. d) Mycoplasmas screening of microorganisms includes mcq; screening of microorganisms includes mcq. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. B) 62.3oC for 30 minutes. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. d) intercalating agents Answer: A (1) Screen organic acid-producing microbes. c) Mycobacterium tuberculosis This quiz is designed to help you assess how well you have learned the content of this lesson. This is one of the widely used methods and more important. Incorporation of CaCO3 in medium is also used to__________. b) 0.5 to 1.0 micrometer in diameter b) light waves 1. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. 11 junio, 2022. Which among the following group of microorganisms are found in the ducts of cows mammary glands? a) viral infection Which of the following method is not used in isolation and screening of desired microorganisms? The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. The process is repeated several times until the requirement is met. 4. Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. A. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. View Answer, 20. Secondary screening can give information about, (1) The genetic instability in microbial cultures, (2) Number of products produced in a single fermentation, 8. D) 134 oC for 1 second. 4.0 SECONDARY SCREENING OF MICROORGANISMS . (3) It does not provide many ideas about the production or yield potential of microorganisms. Includes common viruses, bacteria, and parasites 1,2: Stool sample: Sensitive, certain positive results may be unrelated to active infection. b) cell wall uses 100 grams of glucose in a 300ml solution. B) False, Pasteurization is used to sterilize milk. a) Regeneration 5. b) Antibiotic producers B) plasmolyzes bacteria and fungi. b) Syphilis b) cellulose a) Killing all microorganisms. (1) It is useful in sorting microorganisms that have real commercial value. c) Study of organisms that are not visible to naked eyes 9. A) True The section contains questions and answers on sanitary quality of water, wastewater, treatment processes, fresh foods microbial flora, food preservation and microorganisms. b) The organism must be able to produce a high yield of product d) Thermophile d) spherical Prokaryotes can be found everywhere on our planet, even in the most extreme environments. C) 72 oC for 15 seconds. d) Indicator dye technique C. MacConkeys Agar plate 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. What is Microbiology? Your email address will not be published. Which of the following plate is used to detect and isolate organic acid producers? 5. a) Growth Factor producers 7. b) False The "flash method" or "high temperature short time" method exposes fluids to Which of the following is the most accurate method for microbial assay of antibiotics? Cellulose is degraded to cellobiose by the enzyme __________________ C. Enrichment Culture technique For which viral disease, vaccine has been recently developed through the use of tissue culture? d) Multiple fission View Answer, 10. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. D) prevent mold. View Answer, 26. d) glucose residues False. Wash your hands with soap and water for at least 20 seconds. A. Fecal occult blood B. d) Coxiella burnetii Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a 9. 3. Cystic fibrosis is an inherited disease, infection in the lungs and digestive system. d) 2 micrometer in diameter View Answer, 9. True. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. 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. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. C. Enrichment Culture technique c) Saccharomyces cerevisiae Microbiology is the study of : 3. Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. c) Chlorophycophyta Which of the following plate is used to detect and isolate organic acid producers? Glycosylated hemoglobin: causes sickle cell anemia. d) Rose Bengal Agar plate b) an increase in number of cells 15. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. Which of the following is a family of lambda phage viruses? a) site of generation of protonmotive force d) Shortest wavelength of visible light used and an objective with the maximum numerical aperture View Answer, 27. Answer: C Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. 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. It is used to reduce the dense culture of cells to usable concentration. View Answer, 42. c) UV light Antibiotic producers B) False, Yeast cells prefer aerobic conditions to multiply in number. C) inoculation, fermentation, downstream processing, removal of waste. 3. Which among the following are Spirochetes? A. d) Candida milleri Microbiology MCQ. a) Cyanobacteria, Fungi and Viruses d) Indicator dye technique b) Corticoviridae C. Phenolphthalein B. 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. A) substrates are added to the system all at once and runs until product is harvested. A BV test is done in a similar way as a pelvic exam or Pap smear. Which of the following microorganism is eliminated in canned foods? 13. this would be absolutely amazing. a) Small pox