d) Mycoplasmas c) Spirochaeta Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. Place 6 test tubes into a rack and fill each with 9ml of 0.9% NaCl solution. b) Rhodospirillum It will immensely help anyone trying to crack an exam or an interview. Each daughter cell is a clone of the parent cell. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. Which isolation technique is most effective? 8. d) Coxiella burnetii d) Hanging Drop technique Answer: D (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. View Answer, 17. Prokaryotes are unicellular microorganisms whose cells have no nucleus. ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<. 8.0 10.0 c) American Type Counter Collection A. 2. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes 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. Acridine orange is which type of mutagen? D. The organism must be able to grow in an easily available nutrient medium. 11. Full-form of ATCC is _________ (1) It is useful in sorting microorganisms that have real commercial value. Which of the following enzyme removes the RNA primer with its 5-nuclease activity? Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? D) all of the above. Answer: B View Answer, 12. Which of the following is the primary screening method? Answer: A A) True This is one of the widely used methods and more important. View Answer, 7. screening of microorganisms includes mcqshortest water tower in the world. Answer: 4. c) Mycobacterium tuberculosis Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? a) Phenol red plate Methyl red Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . Which of the following yeast can be used to produce microbial protein? c) Desulfotomaculum sp. Good work practices include, a. smelling and tasting chemicals . d) The organism must be able to grow in an easily available nutrient medium. a) viruses d) Cristispira Which of the following statements is correct regarding secondary screening________. 3. c) rod shaped c) carbohydrates The process is repeated several times until the requirement is met. a) Leuconostoc mesenteroides Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? 6. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. c) Enrichment Culture technique A) production of alcoholic beverages by microorganisms. a) Study of molecules that are visible to human eyes Children are more susceptible to this disease. 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D) starch. 7. Defined media are prepared by adding precise amounts of highly purified inorganic or organic chemicals to distilled water. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. Answer: C Which of the following plate is used to detect and isolate organic acid producers? As an Amazon Associate we earn from qualifying purchases. a) False C) alcohol. Sanfoundry Global Education & Learning Series Fermentation Technology. A. . 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. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. b) Microbacteria The methods for isolation and screening are a crowded plate, auxanography, enrichment culture and use of indicator dyes. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. b) hexokinase d) Indicator dye technique 7. b) Atrichous bacteria. Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. Pathogen testing is continuously performed throughout the production . Screens are made of long, closely spaced, narrow metal bars. c) 5 8 a) Watson A) True Clarification: The optimum temperature for the growth of an organism should be above 40C. 1. c) Secondary treatment 3. Our Environment Class 10 MCQ Question 6. the virus must be able to cross-link red blood cells directly. All the microorganisms such as amoeba, protozoa, viruses, bacteria are studied under microbiology. Q.1. d) DNA polymerase II It should have a fast rate of kill of micro-organisms. The bacterium Staphylococcus aureus is which type of bacteria? The colour of plate changes from red to yellow in the zone of organisms producing organic acid. The section contains multiple choice questions and answers on viruses, vaccination, structure, composition, viruses classification, virus infection and fatal diseases. b) Rabies (4) This may be accomplished by paper, thin layer, chromatographic technique. Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. Our 1000+ MCQs focus on all topics of the Microbiology subject, covering 100+ topics. A. How do you isolate microorganisms in the air? d) 5 percent c) The optimum temperature for the growth of an organism must be above 50C a) Methyl red b) below 1 percent A. 4. 3. Glycolysis can occur in ___________ Identify bacteriophage. b) Treponema pallidum Full-form of ATCC is _________. What does a viral DNA becomes after being associated with the bacterial chromosome? c) Bacillus thuringiensis B. d) cellulase 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? D. American Type Classifier and Collection. If you are redistributing all or part of this book in a print format, 3. b. not washing hands before and after lab . b) teichoic acid c) Crick The section contains multiple choice questions and answers on soil microorganisms interactions, nitrogen, carbon and sulphur cycles, aquatic environment, aquatic microorganisms techniques and productivity. It is the organization which has the largest department of Research and Development. Antibiotic producing microorganisms can be detected by the method__________, 5. 3. (Or show it to your microbiology professor, just for fun.) B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. c) holozoic 10. c) Objective lens 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. Here are 1000 MCQs on Microbiology (Chapterwise). E. coli is a sub-group of the fecal coliform group. d) Phenol red Automatic Type Counter & Classifier 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? 6. 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. False. 8. b) mutualistic is affected by the patient's food intake on the day of testing. a) Crowded plate technique c) magnetic fields Which of the following method is not used in isolation and screening of desired microorganisms? a) x-rays (2) Attempt to kill microorganisms outside of their natural environment. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. What is high throughput screening used for? Answer: A determined to obtain accurate susceptibility results. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. b) cellulose It doesn't include viruses and prions because they are classified as non-living. c) AIDS 3. B. Thymol blue 2011-2023 Sanfoundry. 1. B) 62.3oC for 30 minutes. The prototrophs are the organisms which are not capable of synthesizing all growth requirements for themselves. a) parasitic Which one of the following is called as the 'brewers yeast'. A) radiation. Answer: C Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. b) 8.0 10.0 c. Let the soil particles settle after shaking and then transfer 1ml of the solution into tube 2. a) Mesophile includes 6 urine samples. 2. d) Prototheca A. Sulphates are reduced to hydrogen sulphide by _____________________ 11. Which of the following microorganism produces dextran? 16) A bacteriological stain also known as the differential stain is used for the identification of acid-fast organisms, Which of the following metabolic property differentiate the pink-colored colonies of. 4.0 SECONDARY SCREENING OF MICROORGANISMS . Multiple Choice. 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. (retrieve https://www.learningsta.com, April 2021) 2.0 SCREENING . 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