screening of microorganisms includes mcq

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? (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. D) removal of waste, inoculation, fermentation, downstream processing. b) mutualistic View Answer, 14. Which of the following types of microorganisms is photosynthetic? It is done by using paper, thin layer or other chromatographic techniques. Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . Clarification: Hanging drop technique is used for motility testing of bacteria. 15. Clean and disinfect surfaces that are touched often. What is required for proper isolation of microorganisms? 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. Prokaryotes are very flexible metabolically, so they are able to adjust their feeding to the available natural resources. Which is the secondary stage? a) The organism must be genetically stable. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. A) True Crowded plate technique Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. Protozoa that eat other organisms are known as _______________ Self-Assessment Quiz. a) plasmid d) Phaeophycophyta A. a) phospholipids a) Leuconostoc citrovorum C. Enrichment Culture technique A) True It is the organization which has the largest department of Research and Development. The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. b) Advanced treatment c) an increase in the size of an individual organism c) Phenolphthalein a) Final treatment C. The optimum temperature for the growth of an organism must be above 50C 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. Juli 2022 3. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. View Answer, 31. answer choices. D) 134 oC for 1 second. B) False, Mass-produced microbial cells can be used as livestock feed. There are various microorganisms types like bacteria, fungi, archaea, or protists. Children are more susceptible to this disease. c) Cyanobacteria Glycosylated hemoglobin: causes sickle cell anemia. Secondary screening helps in detecting really useful microorganisms in fermentation processes, which includes, (1) Detection and isolation of microorganisms that possess potentially interesting industrial application, (3) It helps in providing information regarding the product yield potentials of different isolates. a) Killing all microorganisms. View Answer, 16. What is the pH range of Bromophenol blue? B) False, Pasteurization is used to sterilize milk. d) Coliform bacteria. C. Organic acid producers Who was the first to observe animalcules under the microscope? B. D. 2-fold. coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. B) 62.3oC for 30 minutes. View Answer, 5. 1. It should not leave damage and odour. c) chitin a) Mesophile Which scientist proposed adding a kingdom for protists? Allow discarding of many valueless microbes. a) Styloviridae b) mycotic infection Yeast cells are good source of. 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. d) Thermophile Identify bacteriophage. b) Antibiotic producers The section contains questions and answers on biological and economic importance of algae, algae characteristics and classification, ecology and protozoa importance, protozoa characteristics, protozoa morphology and reproduction. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. A) fermentation, downstream processing, removal of waste, inoculation. c) ribitol or glycerol residues View Answer, 46. d) Phenol red b) cellulose If you are redistributing all or part of this book in a print format, b) Longest wavelength of visible light used Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. a) Algae Which of the following was NOT a kingdom in Linnaeuss taxonomy? Which organisms show the zone of inhibition grown on a Petri plate? Which of the following plate is used to detect and isolate organic acid producers? The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. Adenoviruses cause _________a) Respiratory infectionsb) Gastric problemsc) Intestinal perforationd) Heart attackAnswer: a d) Indicator dye technique b) teichoic acid Clarification: ATCC stands for American Type Culture Collection. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. View Answer, 48. b) irregular b) Streak-plate a) Neisseria gonorrhoeae. A) heat below 100 oC. a) Crowded plate technique Which of the following dye is colourless at acidic pH and becomes red at basic 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. Avoid contaminated food and water. 6. It is 50,000X magnified image of a bacterium. b) Fermented dairy products Which of the following is used in electron microscope? Mycoplasma pneumoniae is an unusual bacteria which has distinctive characteristics, such as. Lipopolysaccharide in cell walls is characteristic of? 4. b) Auxanographic technique a) chemical compounds Which of the following statements about food chain and energy . 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. Rhizobium bacteria. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. a) Cephaleuros B. Auxanographic technique d) mitochondrial membrane Binary fission begins when the DNA of the bacterium divides into two (replicates). 10. c) American Type Counter Collection D. Indicator dye technique. View Answer, 12. This set of Fermentation Technology Interview Questions and Answers focuses on Isolation and Screening of Industrially Important Microbes. c) Peritrichous View Answer, 19. For this dilution, it may be said that the solution was diluted _______ Which of the following plate is used to detect and isolate organic acid producers? Which of the following method is useful for isolation and detection of organisms having the ability to produce organic acids? D. Indicator dye technique. Microbiology Question Bank PDF book covers problem solving exam tests from microbiology textbook and practical book's chapters as: Chapter 1: Basic Mycology MCQs. Which among the following are microaerophilic bacteria? b. not washing hands before and after lab . d) Malaria b) Acanthopeltis c) MacConkeys Agar plate Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. Which of the following is a family of lambda phage viruses? B. Auxanographic technique Answer: C d) cathode rays c) Robert Koch The section contains questions and answers on light microscope, microbial Stains, transmission and scanning electron microscope. B) False, HACCP Hazard Analysis and Critical Control Point uses random samples for quality control of the food supply. Which of the following method can be used to determine the number of bacteria quantitatively? Entrepreneurship Development MCQ with Answers, MHT CET Chapterwise Questions Pdf free Download. (1) Optimal temperature for growth, (2) Optimal oxygen requirements, (3) Optimal nutritional needs (4) All of the above. B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. 6. Our members have a unique depth and breadth of knowledge about the discipline. b) coliforms a) anaerobic cells Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? MCQ.8): In which of the following bacterial condition, fimbriae helps the bacteria to stick to the mucous membrane of the host? B. 1. Which of the following is not a subfield of microbiology? d) The organism must be able to grow in an easily available nutrient medium Nitrates maintain the red color of preserved meats and B) are by-products of metabolism that are not important to microbe function. Symptoms include cough and lung infection. c) Enrichment Culture technique c) Breads Answer: B b) Candida utilis Which among the following is a pathogenic algae for humans? d) Study of microscope (3) It provides information on whether the product formed by microorganisms is new or not. Which of the following foods is NOT made by fermentation? 8. 10-fold True. c) Mycobacterium tuberculosis Enrichment culture technique was developed by_________, 16. Primary treatment removes material that will either float or readily settle out by gravity. 5. a) Condenser lens Chapter 2: Classification of Medically important Bacteria MCQs. 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. b) Automatic Type Counter & Classifier Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. A. Crowded plate technique 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) Shortest wavelength of visible light used and an objective with the maximum numerical aperture A) organic acids. A) substrates are added to the system all at once and runs until product is harvested. Clarification: The Antibiotic producers show the zone of inhibition. Which of the following are the growth morphology of the protozoa? 250+ TOP MCQs on Microbes in Industrial Products-4 and Answers, 300+ TOP MCQs on Microbes in Human Welfare and Answers, 250+ TOP MCQs on Microbes in Household Products-1 and Answers, 250+ TOP MCQs on Microbes in Production of Biogas and Answers, 250+ TOP MCQs on Microbes in Household Products-2 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-3 and Answers, 250+ TOP MCQs on Microbes in Sewage Treatment and Answers, 250+ TOP MCQs on Microbes in Industrial Products-1 and Answers, 250+ TOP MCQs on Microbes in Industrial Products-2 and Answers, 250+ TOP MCQs on Microbes as Biofertilizers and Answers, [12 Class Notes] MICROBES IN HUMAN WELFARE Biology CBSE, 250+ TOP MCQs on Microbes as Biocontrol Agents and Answers, 250+ TOP MCQs on Microbes in Metal Containing Habitat and Answers, 250+ TOP MCQs on Microbes in Bioleaching Process and Answers, 250+ MCQs on Isolation and Screening of Industrially Important Microbes and Answers, 300+ TOP MCQs on Bioremediation and Answers, 250+ TOP MCQs on Heat Transfer Applications Thermal Processing and Answers, 250+ TOP MCQs on Environmental Issues Water Pollution and its Control and Answers, 250+ TOP MCQs on Biotechnology Applications Ethical Issues and Answers, 250+ TOP MCQs on Hydraulic Fracturing Frac Job Design and Answers. The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . View Answer, 2. 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. The following diagram represents ____________a) Plate with wormsb) Colonies of bacteria on a petri dishc) Onion root cells on a plated) Cheek cellsAnswer: bClarification: The following diagram represents colonies of bacteria on a petri dish. The process is repeated several times until the requirement is met. Which of the following is the most accurate method for microbial assay of antibiotics? The section contains multiple choice questions and answers on bioenergetics principles, energy production by photosynthesis, anaerobic and aerobic processes. (2) It determines which microorganisms can produce a compound. the virus must not be able to lyse red blood cells. In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms? a) changes in the total population View Answer, 49. Pathogen testing is used to identify pathogenic organisms in manufacturing environments, ingredients or finished products that could harm the consumer. Automatic Type Counter & Classifier View Answer, 47. Primary methods to prevent food spoilage do NOT include A. 5. Q. Q.1: Screening of microorganisms includes . 4. How do you isolate microorganisms from the soil? However, if environmental contamination can enter the system, pathogens could get in too. Answer: A b) Jenner D) prevent mold. 3. microscopic with a fried egg shape. Aims and objectives. 1. d) proteins It changes from yellow at pH 3.0 to blue-violet at pH 4.6. 100-fold d) Amino acid producers Which of the following is not microbe?a) Bacteriab) Protozoac) Viroidsd) WormsAnswer: dClarification: Microbes are diverse in nature and include- protozoa, bacteria, fungi and microscopic animal and plant viruses, viroids and also prions that are proteinaceous infectious agents. A) True Multiple Choice. d) Pedoviridae b) Clostridium botulinum 1. Which of the following gram positive bacteria is a strict anaerobe and can only grow in the absence of oxygen? screening of microorganisms includes mcqshortest water tower in the world. 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. It should have a fast rate of kill of micro-organisms. b) Fungi 1. They block floating debris such as wood, rags, and other bulky objects that could clog pipes or pumps. You will get a gown or sheet as a cover. True c) prophage Chapter 4: Clinical Virology MCQs. a) Small pox It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. Good work practices include, a. smelling and tasting chemicals . Categories: . C. MacConkeys Agar plate 4.1: Prokaryote Habitats, Relationships, and Microbiomes. 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. View Answer, 7. Which of the following are present in teichoic acids? Acridine orange is which type of mutagen? 8.0 10.0 These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. Fermentation Technology Questions on Isolation and Screening of Industrially Important Microbes. 6.8 - 7.2 b. The microorganisms from lakes and rivers can grow at a salt concentration of _________ Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Which microorganism(s) among the following perform photosynthesis by utilizing light? a) Watson Through primary screening only few or many microorganism that produce a industrially . View Answer, 15. d. using damaged equipment and glassware. Which isolation technique is most effective? Cellulose is degraded to cellobiose by the enzyme __________________ The microorganisms secrete the enzymes into their nutrient medium to make better use of it. View Answer, 4. True What does a viral DNA becomes after being associated with the bacterial chromosome? c) Bacillus thuringiensis Which of the following method is not used in isolation and screening of desired microorganisms? View Answer, 35. 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MCQ.9):Which bacteria have flagella of amphitrichous type means the flagellum are present at both the sides? b) Study of animals and their family 13. d) Multiple fission Which of the following method is useful for detection and isolation of those microorganisms which are capable of growing on a particular nutrient medium? False. C. 1000-fold a) Rod-shaped b) Comma shaped c) Spiral shaped d) Spherical shaped Answer: a Clarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. b) Budding Industrial microbiologists use "tricks" to increase the amount of chosen end product; this may include How to avoid the spreading of Microorganisms has been discussed. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. D) are harvested during the exponential phase of growth. Give the steps of typical sewage treatment plant are as given below. View Answer, 37. b. Clarification: The Auxanographic technique is used for the detection and isolation of the organisms which are growth factor producers. c) hydrophobic barrier 5. Genetic engineering is also used to improve the biodegradation . c) An objective with minimum numerical aperture Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. Several microbes are useful to humans in diverse ways like in household products, industrial products, agricultural products, etc. a) 3.0 4.6 citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. b) Auxanographic technique Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. c) Spirochetes View Answer, 41. d) Rose Bengal Agar plate The well-isolated colonies are antibiotic producers with the zone of inhibition. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. is affected by the patient's food intake on the day of testing. c) The optimum temperature for the growth of an organism must be above 50C 6. Which was the first disease for which a chemotherapeutic agent was used? other viruses are too dangerous to work with in a clinical lab setting. What is high throughput screening used for? View Answer, 27. Which one of the following is called as the 'brewers yeast'. b) True 2. Who is considered the "father of Western medicine"? 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. Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. Growth Factor producers Label these plates 1/10 3 through 1/10 6. [2] The term for organisms that retain the . Best method of sterilization at commercial level is a) Hot air oven b) Autoclaving c) Radiation d) Sun light answer-C 5. B. Auxanographic technique 14. A 70 year old male visited a clinic with chronic cough, chest pain, fever, chills, and weakness. Screening includes primary screening and secondary screening. Answer: B 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? Our Environment Class 10 MCQ Question 6. Clarification: Auxanographic technique proceeds with 2-plate preparation. Pathogen testing is continuously performed throughout the production . 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.

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