There are various microorganisms types like bacteria, fungi, archaea, or protists. Which of the following shows the zone of inhibition when a particular organism is grown on a Petri plate? C. Enrichment Culture technique Study with Quizlet and memorize flashcards containing terms like Which of the following is true about the trichomonas vaginalis? In modern plants the screens are cleaned . 10. 45) What are the types of general characteristics that are important for the identification and classification of protozoa? Through primary screening only few or many microorganism that produce a industrially . 2. 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. View Answer, 7. Secondary screening should yield the types of information which are needed in order to evaluate the true potential of a microorganisms industrially usage. a) phospholipids A. It includes the physical processes of screening, comminution, grit removal, and sedimentation. Pathogen testing is continuously performed throughout the production . Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________ D. Hanging Drop technique. Which isolation technique is most effective? View Answer, 10. 1g of soil is added to that test tube and the soil is allowed to settle down. These extracellular enzymes break up the giant molecules of the substrate into smaller ones that can feed the microorganisms. d) both aerobic and anaerobic cells a) peptidoglycan b) Jenner Primary treatment removes material that will either float or readily settle out by gravity. a) Styloviridae Cryptococcosis is a disease of ________________ Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? c) MacConkeys Agar plate c) fecal streptococci View Answer, 8. Which is the secondary stage? View Answer, 14. Which of the following is the primary screening method? Which of the following are produced by microorganisms? Answer: A. 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. Universal aseptic techniques includes, Except a) Gown b) Mask c) Cough Etiquettes d) Hand washing answer-D 4. 14. View Answer, 4. D) all of the above. Crowded plate technique 4. Who proposed that swamps might harbor tiny, disease-causing animals too small to see? a. Streptococcus pyogens b. Answer: D b. Which scientist proposed adding a kingdom for protists? b) Streak-plate a) Methyl red Full-form of ATCC is _________ Answer: A View Answer, 4. It is done by using paper, thin layer or other chromatographic techniques. _______ are the agents that act as carriers of a pathogen and spread diseases. a) Growth Factor producers Which of the following microorganism has the cocci cell shapes and sizes arranged usually in tetrad structures? a) Micrococci a) plasmid [1] Often the first test performed, gram staining involves the use of crystal violet or methylene blue as the primary color. d) appendaged bacteria c) Enrichment Culture technique Which of the following statements about food chain and energy . Q.1. c) carbohydrates 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. Secondary screening may be qualitative and quantitative in its approach. a) Crowded plate technique b) irregular The section contains MCQs on chemotherapy historical highlights, antibiotics and their actions, microbiological assay of antibiotics, antifungal, antiviral and antitumour antibiotics. B. View Answer, 9. View Answer. The section contains MCQs on selective methods, pure cultures and cultural characteristics. For this dilution, it may be said that the solution was diluted _______ B) 62.3oC for 30 minutes. View Answer, 2. Who is known as the father of Microbiology? MCQ Questions for Class 8 Science: Ch 2 Microorganisms: Friend and Foe. It is the organization which has the largest department of Research and Development. 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. c) Crick b) Automatic Type Counter & Classifier Answer: C c) Enrichment Culture technique This is one of the widely used methods and more important. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. a) above 1 percent Microbiology is the study of : 3. Which among the following are Spirochetes? Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? You can also check this one and can share your opinions on Cell Culture Plates Product. d) Coliforms You can practice these MCQs chapter by chapter starting from the 1st chapter or you can jump to any chapter of your choice. c) Cyanobacteria We recommend using a 1. View Answer, 5. Rickettsia species are carried by. 3. Full-form of ATCC is _________ 12. d) Indicator dye technique 11. Protozoa that eat other organisms are known as _______________ the virus must be able to lyse red blood cells. During their metabolism, microbes produce chemicals, some of which are used by human beings. a) elongated During the test, You will take off your clothes below your waist. Answer: B a) DNA polymerase III Answer: A d) DNA polymerase II Answer: B microscopic with a fried egg shape. [1] Infections are common both in community-acquired as well as hospital-acquired settings and treatment remains challenging to manage due to the emergence of multi-drug resistant strains such as MRSA (Methicillin-Resistant Staphylococcus aureus). c) Saccharomyces cerevisiae In batch fermentation, d) electron beams 4. For which viral disease, vaccine has been recently developed through the use of tissue culture? Primary Screening of Microorganisms: Primary screening may be defined as detection and isolation of the desired microorganism based on its qualitative ability to produce the desired product like antibiotic or amino acid or an enzyme etc. b) Viruses Crowded plate technique 2. 2. Which of the following is the standard resource for identifying bacteria? a) Treponema a) Regeneration Clarification: Hanging drop technique is used for motility testing of bacteria. View Answer, 50. b) Gram-positive organisms a) site of generation of protonmotive force c) chitin If you are redistributing all or part of this book in a print format, Which of the following method is useful for isolation and detection of organisms having the ability to produce growth factors? The section contains multiple choice questions and answers on morphology, reproduction, physiology and fungi cultivation, fungi classification and special interest. 8. D. The organism must be able to grow in an easily available nutrient medium. View Answer, 13. 2. True. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo d) Indicator dye technique False. Which of the following are important primary screening techniques? determined to obtain accurate susceptibility results. (1) Microbial isolation technique is an attempt to grow microorganisms outside of their natural environment. a) viruses View Answer, 21. 2. Who is considered the "father of Western medicine"? Answer: 1. Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . c) holozoic c) rod shaped View Answer, 3. What is high throughput screening used for? Dec 20, 2022 OpenStax. A. American Type Culture Collection c) An objective with minimum numerical aperture Butanol is obtained by fermenting molasses by. Clarification: The use of Indicator Dye Technique is used for detection and isolation of the organisms which are organic acid producers. d) American Type Classifier and Collection d) The organism must be able to grow in an easily available nutrient medium a) Vibrio cholerae Water treatment typically requires three stages to make it potable from sewage. View Answer, 31. B. Auxanographic technique The production of substances in industrial microbiology occur in the sequence: c) Chlorophycophyta A) radiation. b) ribitol residues The well-isolated colonies are antibiotic producers with the zone of inhibition. The normal brown color of the feces is produced by: A. Cellulose B. Pancreatic enzyme D. Indicator dye technique. Official Website of Dr. Shyama Prasad Mukherjee University, Ranchi . This reduces the cooling costs in large scale fermenters. A) manipulating the growth environment. b) Antibiotic producers D. Phenol red. B) using small scale containers to concentrate production. b) cellulose a) Crowded plate technique B. Auxanographic technique A 19-year-old male living in a tropical region of India visited the hospital. and you must attribute OpenStax. This quiz is designed to help you assess how well you have learned the content of this lesson. 1215, 1216 137, 1217 Particles in a biological aerosol usually vary in size from <1 m to 50 m. B. Auxanographic technique D) removal of waste, inoculation, fermentation, downstream processing. d) Lophotrichous Answer: B OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. Which of the following pulmonary pathogens cannot be easily detected by the gram staining technique when performing a microscopy test? Report an issue. Our Environment Class 10 MCQ Question 6. B. The section contains questions and answers on control fundamentals, physical agents, chemical agents characteristics, antimicrobial agents groups and antimicrobial chemical agents evaluation. 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) gene Clarification: The optimum temperature for the growth of an organism should be above 40C. 7. The common symptoms are pink or red spots on the skin surface, dry cough, and runny nose. Q. Q.1: Screening of microorganisms includes . B) plasmolyzes bacteria and fungi. B. A. Primary methods to prevent food spoilage do NOT include 12. A BV test is done in a similar way as a pelvic exam or Pap smear. 37) Which of the following is the selective media used for the cultivation and isolation of. a) 100-fold b) Auxanographic technique b) light waves d) Nitrosovibrio tenuis The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. View Answer, 47. The normal composition of feces includes all of the following except: A. Bacteria B. Q. Bacterial endospores are more resistant to antimicrobial control methods than all other microbial forms. citation tool such as, Authors: Nina Parker, Mark Schneegurt, Anh-Hue Thi Tu, Philip Lister, Brian M. Forster. The section contains multiple choice questions and answers on microorganisms characteristics and microbial classification. d) bacterial infection B. Thymol blue Answer: A It belongs to the phthalein family that is employed as an acid-base indicator. a) Leuconostoc mesenteroides 2011-2023 Sanfoundry. Vaccination was invented by ____________ View Answer, 28. View Answer, 44. View Answer, 41. d) Antoni van Leeuwenhoek C) selecting microbial strains that lack a feedback system. Which microorganism(s) among the following perform photosynthesis by utilizing light? Chrysolaminarin is the reserved food of ___________________ Which of the following metabolic characteristic is a distinguishing characteristic and identification of colonies of. B) heat. Aims and objectives. Our mission is to improve educational access and learning for everyone. a) Crowded plate technique (Or show it to your microbiology professor, just for fun.) b) Auxanographic technique Eubacteria can be either gram-negative or gram-positive, they have economic, agricultural, and medical importance. Which of the following is NOT a criterion for the choice of an organism? C. American Type Counter Collection View Answer, 43. 5. It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. Crowded plate technique is used for screening of____________. Which of the following method is not used in isolation and screening of desired microorganisms? is affected by the patient's food intake on the day of testing. b) Treponema pallidum C. Enrichment Culture technique D) are harvested during the exponential phase of growth. Answer: B The screening is isolation and detection of microorganisms of interest. other viruses are too dangerous to work with in a clinical lab setting. What is the pH range of Bromophenol blue? (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. C) sugar. 1. The colour of plate changes from red to yellow in the zone of organisms producing organic acid. A food chain comprising birds, green plants, fish and man. The organism must be genetically stable Tyrocidines are more effective against ___________________ b) False View Answer, 5. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . B) False, When in doubt, throw it out. Which among the following group of microorganisms are found in the ducts of cows mammary glands? Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. What is Microbiology? Secondary metabolites b) Auxanographic technique the virus must not be able to lyse red blood cells. b) 8.0 10.0 Glycosylated hemoglobin: causes sickle cell anemia. a) Algae d) hydrophobic barrier and site of generation of protonmotive force View Answer, 35. Several types of cells of the immune system perform phagocytosis, such as neutrophils, macrophages, dendritic cells, and B lymphocytes. a) The organism must be genetically stable B. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. c) base analog The section contains questions and answers on cell division modes, bacteria growth cycle and quantitative measurement. Phosphorus is essential component of __________ c) 2.5 to 4 percent View Answer, 34. d) mitochondrial membrane Which of the following media is used for screening amylase? The organic acid producers produce acid which changes the colour of media and is thus detected easily. Cellulose is degraded to cellobiose by the enzyme __________________ 14. In which of the following treatment involve oxidation of organic constituents of the wastewater? Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. 5. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . a) American Type Culture Collection The process is repeated several times until the requirement is met. Which of the following statement is correct regarding primary screening________. Which of the following foods is NOT made by fermentation? Complex media are prepared using digests of microbial, animal, or . Our members have a unique depth and breadth of knowledge about the discipline. b) Rabies Name three reserve materials synthesized by microorganisms and note which microbial groups 1. Except where otherwise noted, textbooks on this site Antibiotic producing microorganisms can be detected by the method__________, 5. B. Candidiasis is a fungal infection, skin infection, and mouth or vaginal infection that can occur due to the overgrowth of the fungus. Answer: 4. APT test C. Elastase I D. Quantitative fecal fat testing: 6. b) Fermented dairy products 11. 11. View Answer, 6. View Answer, 7. Chemical preservatives do NOT include D. American Type Classifier and Collection. 6. Which of the following is a family of lambda phage viruses? Which of the following bacteria is an endospore-forming bacteria that is also a common foodborne pathogen? It is used to reduce the dense culture of cells to usable concentration. Which of the following is used in electron microscope? 13. c) Enrichment Culture technique Required fields are marked *. It is a non-profit organization and a key resource for medical research. d) cathode rays Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced . Performance and sterility testing of media lots should also be determined and Which shape of bacteria has been represented in the following diagram? 44) Which of the following microorganisms can grow only as strict intracellular parasites? C. 1000-fold 13. 6. Which of the following plate is used to detect and isolate organic acid producers? Answer: C Home Class 12 Biology Objective Questions 250+ TOP MCQs on Microbes and Answers. D. Indicator dye technique. b) gamma rays b) Biological assay Which of the following method is used for the isolation of mutants? A. a) 3.0 4.6 d) proteins A) True Bacteria or other organisms used in AST testing should be from a fresh culture, ii) the composition and preparation of the agar and broth media used (e.g. The microorganisms are chosen based on the rest three criteria. d) cellulase 6. c) nucleotides b) hexokinase Which of the following types of microorganisms is photosynthetic? c) Microviridae c) 2mm in diameter The bacterium Staphylococcus aureus is which type of bacteria? d) Prototheca It is further followed by secondary screening, to check the capabilities and gain information about these organisms. 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. C. perfringens is a spore-forming bacteria, that produce H 2 S and hemolysis on blood agar. b) Auxanographic technique 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. a) Cyanobacteria, Fungi and Viruses (1) Screen organic acid-producing microbes. Identify bacteriophage. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. c) Enrichment Culture technique Diagram and name four mechanisms bacteria use to transport materials across the cytoplasmic membrane. The objective of this study was to isolate, identify, and screen the potential antimicrobial-producing . Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite. View Answer, 36. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations.
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Justin Thomas Trackman Numbers, Tanglewood Schedule 2022, Articles S