Multiple Choice. d) Thermophile 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) Corynebacterium diphtheriae Clarification: The pH range of Bromophenol blue is 3.0 4.6. B. View Answer, 15. Antibiotic producers c) beta-glucosidase d) gene Set up a series of 1/10 dilutions: a. It will immensely help anyone trying to crack an exam or an interview. b) Rabies Penicillin causes inhibition of Mycoplasmas. Which of the following is a correct usage of binomial nomenclature? b) Auxanographic technique It is the organization which has the largest department of Research and Development. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. View Answer, 11. MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? Prokaryotes can be found everywhere on our planet, even in the most extreme environments. Microscopic examination and culture of the sputum sample revealed gram-positive cocci that appear in chains. screening of microorganisms includes mcq. d) Malaria c) base analog Tyrocidines are more effective against ___________________ c) Spirillum volutans 8. Answer: B Which of the following is NOT a criterion for the choice of an organism? The screening is isolation and detection of microorganisms of interest. c) Desulfotomaculum sp. 2. Who is considered the "father of Western medicine"? The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. (2) Chemical, physical and biological properties of a product are also determined during secondary screening. A) production of alcoholic beverages by microorganisms. d) Pedoviridae View Answer, 2. c) Study of organisms that are not visible to naked eyes In which of the following treatment involve oxidation of organic constituents of the wastewater? c) Robert Koch 6. Eubacteria - Definition and Examples - Biology Online Dictionary Which of the following are important primary screening techniques? d) electron beams Often overlooked, hand-washing is one of the easiest and most effective ways to protect yourself from germs and most infections. View Answer. [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. c) prophage Bacteria | What is microbiology? | Microbiology Society 1. c) Nitrosomonas europaea Aims and objectives. View Answer, 21. d) Gram-positive bacteria Report an issue. a) Leuconostoc citrovorum Sulphates are reduced to hydrogen sulphide by _____________________ b) Auxanographic technique b) Automatic Type Counter & Classifier screening of microorganisms includes mcq C. Enrichment Culture technique D) 134 oC for 1 second. View Answer, 11. C. Enrichment Culture technique d) Coliforms d) cathode rays lauren conrad and stephen colletti /; 2. Answer: C View Answer, 39. D) all of the above. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. B. c) Saccharomyces cerevisiae c) parasitic infection milk, meat, green vegetables, fruits, etc.) Air Sampling. Which one of the following is called as the 'brewers yeast'. Some examples of rod-shaped bacteria include Lactobacillus, Morganella, Bacillus anthracis, Klebsiella pneumoniae. For which viral disease, vaccine has been recently developed through the use of tissue culture? 7. Screening includes primary screening and secondary screening. Which of the following are the growth morphology of the protozoa? Answer: B Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. b) Auxanographic technique a) cytoplasmic membrane C) use of microbes in sewage and pollution control. 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. The bacterium Staphylococcus aureus is which type of bacteria? B. Thymol blue Q. Q.1: Screening of microorganisms includes . Symptoms include cough and lung infection. View Answer, 37. Microbes and the Tools of Genetic Engineering - Course Hero 3.0 4.6 b) cell wall C. Enrichment Culture technique View Answer, 26. 11. As primary screening allows the detection and isolation of microorganisms which posses, potentially interesting industrial applications. Which of the following plate is used to detect and isolate organic acid producers? 3. c) hydrophobic barrier Microbiology is the study of living organisms that are not visible to the naked eyes. View Answer, 7. 8. c) carbohydrates To practice all areas of Fermentation Technology for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers. Crowded plate technique chp 25 microbiology 211 mcq. A sputum sample was taken for the lab diagnosis for the isolation and identification of the microorganism. View Answer, 17. a) Vibrio cholerae True 44) Which of the following microorganisms can grow only as strict intracellular parasites? A food chain comprising birds, green plants, fish and man. b. Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. d) Prototheca c) Gram-negative bacteria 4. screening of microorganisms includes mcq (1) Screen organic acid-producing microbes. Your email address will not be published. Clarification: Auxanographic technique proceeds with 2-plate preparation. View Answer, 19. (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. C) new batches of microorganisms are screened for increased yield. b) coliforms B. Auxanographic technique The organism must be able to produce a high yield of product Incorporation of CaCO3 in medium is also used to__________. Which of the following dye is colourless at acidic pH and becomes red at basic pH? 5. A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. 1g of soil is added to that test tube and the soil is allowed to settle down. The colour of plate changes from red to yellow in the zone of organisms producing organic acid. Microbes can live in highly acidic as well as an alkaline medium. Isolation of Microorganisms MCQ Questions and Answers Which among the following are microaerophilic bacteria? d) Antoni van Leeuwenhoek Answer: A A) radiation. b) Fungi 14. C) is used to prevent growth of halophiles. The screening is isolation and detection of microorganisms of interest. Answer: A 2. c) Pour-plate and spread plate It is a non-profit organization and a key resource for medical research. and you must attribute OpenStax. C. Enrichment Culture technique View Answer. Glycosylated hemoglobin: causes sickle cell anemia. Answer: 4. 3. 1. True. This quiz is designed to help you assess how well you have learned the content of this lesson. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . a) Neisseria gonorrhoeae. b) 0.5 to 1.0 micrometer in diameter Which shape of bacteria has been represented in the following diagram? We recommend using a 1. 1g of soil is added to that test tube and the soil is allowed to settle down. d) Fungi a) Thiobacillus thiooxidans A. 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. Answer: A Screening of industrial Microorganisms Quiz - Quizizz A) manipulating the growth environment. D. Amino acid producers. Which of the following method is not used in isolation and screening of desired microorganisms? View Answer, 41. How to avoid the spreading of Microorganisms has been discussed. Wastewater treatment - Primary treatment | Britannica Microbiology MCQ (Multiple Choice Questions) - Sanfoundry What is the approximate size of the bacterial cell? Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? Contact Us. D) exposure. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. d) intercalating agents 10. Prokaryotes are unicellular microorganisms whose cells have no nucleus. 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? D. Indicator dye technique. The 1st plate is used to isolate and detect prototrophs whereas 2nd plate is used for identification of auxotrophs. b) below 1 percent What is the pH range of Bromophenol blue? d) Candida milleri 4. 5. 13. Trophic level in an ecosystem represents. False. Which is the secondary stage? Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. 10. Methyl red View Answer, 10. c) Spirochaeta c) rod shaped a) Treponema 1. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. Diagnostic Microbiology - MCQs Flashcards | Quizlet b) Auxanographic technique d) 6.4 8.0 15. MCQ on Our Environment Question 9. [2] The term for organisms that retain the . If you are redistributing all or part of this book in a print format, Answer: A 12. It changes from yellow at pH 3.0 to blue-violet at pH 4.6.