screening of microorganisms includes mcq

d) glucose residues A. b) Rabies b) Syphilis They are mainly of two types: Primary and Secondary Screening Primary Screening : The effective screening must in one or few steps which allow the discarding of many valueless microorganisms, while at the . 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. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . During the test, You will take off your clothes below your waist. What is the average size of a microbe?a) Less than 1 mmb) More than 1 cmc) Less than 0.1 mmd) More than 0.1 mmAnswer: cClarification: Microbes are microorganisms which have a size less than 0.1 mm. B. 5. Which of the following microorganism produces dextran? The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. What is high throughput screening used for? (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. b) Borrelia A. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. 7. B) are by-products of metabolism that are not important to microbe function. c) Chlorella Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. c) Enrichment Culture technique D. Indicator dye technique. D) exposure. It should be active and stable and environmentally safe. screening of microorganisms includes mcq. View Answer, 37. a) plasmid What is the approximate size of the bacterial cell? D. The organism must be able to grow in an easily available nutrient medium. Set up a series of 1/10 dilutions: a. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. a) Crowded plate technique You can also check this one and can share your opinions on Cell Culture Plates Product. A) are among the most widely used preservatives. The Society's role is to help unlock and harness . Which of the following method is not used in isolation and screening of desired microorganisms? You will get a gown or sheet as a cover. d) Cristispira Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. d) Antoni van Leeuwenhoek c) An objective with minimum numerical aperture The process is repeated several times until the requirement is met. Which among the following group of microorganisms are found in the ducts of cows mammary glands? B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. (2) Attempt to kill microorganisms outside of their natural environment. Full-form of ATCC is _________. Answer: C Microbes are certainly ideal for biotechnology. A. View Answer, 29. 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. 2011-2023 Sanfoundry. 6. View Answer, 22. screening of microorganisms includes mcq; screening of microorganisms includes mcq. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. a) Streptomyces sp. a) Crowded plate technique B. 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. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? 11. Secondary screening may be qualitative and quantitative in its approach. c) Spirochaeta b) False d) Coliforms B. 3. 5. Nitrates maintain the red color of preserved meats and c) an increase in the size of an individual organism You can also download the PDF of Microbiology MCQs by applying below. A) heat below 100 oC. Wash your hands with soap and water for at least 20 seconds. b) light waves True. The greatest resolution in light microscopy can be obtained with ___________ b) Automatic Type Counter & Classifier c) Mumps B) 62.3oC for 30 minutes. Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. 7. Which among the following are Spirochetes? D) prevent mold. Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. A test tube contains 9ml distilled water. 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. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. View Answer, 19. 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. It is the organization which has the largest department of Research and Development. d) intercalating agents d) Multiple fission b) 10-fold b) 0.5 to 1.0 micrometer in diameter Symptoms include cough and lung infection. b) cell wall a) Phenol red plate Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? Lipopolysaccharide in cell walls is characteristic of? 3. b) Fungi milk, meat, green vegetables, fruits, etc.) View Answer, 36. B. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. 2. A 19-year-old male living in a tropical region of India visited the hospital. c) holozoic d) Coxiella burnetii c) parasitic infection d) Pasteur It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. 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. c) Pour-plate and spread plate b) Fermented dairy products A) True Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. Place the gram of soil into the first tube with saline and SHAKE WELL. Potato Dextrose Agar plate Which of the following method is not used in isolation and screening of desired microorganisms? Which scientist proposed adding a kingdom for protists? Full-form of ATCC is _________ First link in any food chain is usually green plants because. b) ribitol residues View Answer, 16. A) True a) Final treatment The microorganisms from lakes and rivers can grow at a salt concentration of _________ b) coliforms Which of the following foods is NOT made by fermentation? The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. d) proteins d) Phaeophycophyta a) Mesophile View Answer, 4. d) Phenol red coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. 26. d) Corynebacterium diphtheriae Which of the following dye is colourless at acidic pH and becomes red at basic pH? 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. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. Which of the following microorganism is eliminated in canned foods? c) Bacillus thuringiensis 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. Screening includes primary screening and secondary screening. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. c) 5 8 The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. d) Indicator dye technique lack of cell wall. 13. d) Pedoviridae Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . A. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. Which of the following is a type of fungal microorganism? These microorganisms have been often under-appreciated and under-studied. Answer: B How do you isolate microorganisms from the soil? A. Answer: B 3. C. Enrichment Culture technique b) False Microbiology MCQ. a) True B) False, Pasteurization is used to sterilize milk. Gram negative bacteria take the color of safranin stain and appear pink or red. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. View Answer, 7. Answer: C What are the methods of isolating the pure culture of microorganisms? 14. Which shape of bacteria has been represented in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: aClarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Multiple Choice. (4) This may be accomplished by paper, thin layer, chromatographic technique. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. Definition: true bacteria; bacteria excluding the archaea. View Answer, 27. A) True You can also prevent infections through: Hand-washing. 8. E. coli is a sub-group of the fecal coliform group. 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. b) Auxanographic technique B) sulfites. View Answer, 38.

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screening of microorganisms includes mcq

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d) glucose residues A. b) Rabies b) Syphilis They are mainly of two types: Primary and Secondary Screening Primary Screening : The effective screening must in one or few steps which allow the discarding of many valueless microorganisms, while at the . 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. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination, meaning there is a greater . During the test, You will take off your clothes below your waist. What is the average size of a microbe?a) Less than 1 mmb) More than 1 cmc) Less than 0.1 mmd) More than 0.1 mmAnswer: cClarification: Microbes are microorganisms which have a size less than 0.1 mm. B. 5. Which of the following microorganism produces dextran? The microbes play a major role in nutrient cycling, decomposition, food spoilage, control and cause of diseases and biotechnology. Mycobacteria f"u001e MCQs IN MICROBIOLOGY 13. pH required for the growth of bacteria is 22. What is high throughput screening used for? (4) It separates out only a few microorganisms, only a few have commercial value while discards the valueless microorganisms, 14. b) Borrelia A. Bacterial cells grown in a medium exposed to high osmotic pressure, changes shape from rod-shaped to __________ shaped. 7. B) are by-products of metabolism that are not important to microbe function. c) Chlorella Q. Vegetative bacteria are able to withstand adverse conditions better than protozoan cysts. Staphylococcus aureus is a major bacterial human pathogen that causes a wide variety of clinical manifestations. c) Enrichment Culture technique D. Indicator dye technique. D) exposure. It should be active and stable and environmentally safe. screening of microorganisms includes mcq. View Answer, 37. a) plasmid What is the approximate size of the bacterial cell? D. The organism must be able to grow in an easily available nutrient medium. Set up a series of 1/10 dilutions: a. It works best in this range and is also used as a tracking dye in Agarose-Gel Electrophoresis. Types of pathogens include specific bacteria strains, viruses, fungi, or parasites that can cause illness in its host. a) Crowded plate technique You can also check this one and can share your opinions on Cell Culture Plates Product. A) are among the most widely used preservatives. The Society's role is to help unlock and harness . Which of the following method is not used in isolation and screening of desired microorganisms? You will get a gown or sheet as a cover. d) Cristispira Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single circular chromosome. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. d) Antoni van Leeuwenhoek c) An objective with minimum numerical aperture The process is repeated several times until the requirement is met. Which among the following group of microorganisms are found in the ducts of cows mammary glands? B) False, Freezing at below -20 oC will kill most pathogenic food bacteria and inactivate toxins. (2) Attempt to kill microorganisms outside of their natural environment. Full-form of ATCC is _________. Answer: C Microbes are certainly ideal for biotechnology. A. View Answer, 29. 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. 2011-2023 Sanfoundry. 6. View Answer, 22. screening of microorganisms includes mcq; screening of microorganisms includes mcq. Clarification: The question mark in the following figure represents flagella of a rod-shaped bacterium. a) Streptomyces sp. a) Crowded plate technique B. 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. Urinary tract infection was suspected, urine sample and swab specimen were taken and cultured on suitable agar media, a microscopic examination was performed. Which of the following is NOT a domain in Woese and Foxs phylogenetic tree? 11. Secondary screening may be qualitative and quantitative in its approach. c) Spirochaeta b) False d) Coliforms B. 3. 5. Nitrates maintain the red color of preserved meats and c) an increase in the size of an individual organism You can also download the PDF of Microbiology MCQs by applying below. A) heat below 100 oC. Wash your hands with soap and water for at least 20 seconds. b) light waves True. The greatest resolution in light microscopy can be obtained with ___________ b) Automatic Type Counter & Classifier c) Mumps B) 62.3oC for 30 minutes. Now that you have read Lesson 5 and have completed the exercises, you should be ready to take the self-assessment quiz. Now, 1ml of that stock solution is taken and transferred to the 2nd test tube containing 9ml of distilled water. It is the zone where only the growth of a particular colony is observed whereas rest all colonies get degraded by antibiotics. Clarification: The transfer of a 1ml solution to 9ml d/w is called as serial 10-fold dilution. 7. Which among the following are Spirochetes? D) prevent mold. Actinomycetes are Gram-positive, facultative anaerobic fungus-like filamentous bacteria which remain on the top of the natural antibiotic producers. A test tube contains 9ml distilled water. 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. The act of phagocytizing pathogenic or foreign particles allows cells of the immune system to know what they are fighting against. View Answer, 19. 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. It is the organization which has the largest department of Research and Development. d) intercalating agents d) Multiple fission b) 10-fold b) 0.5 to 1.0 micrometer in diameter Symptoms include cough and lung infection. b) cell wall a) Phenol red plate Microbes like bacteria and many fungi can be grown on nutritive media to form colonies, that can be seen with naked eyes. 31) Name the bacteria of the Enterobacteriaceae family that have the following characteristics? Lipopolysaccharide in cell walls is characteristic of? 3. b) Fungi milk, meat, green vegetables, fruits, etc.) View Answer, 36. B. Which of the following method is useful for the isolation and detection of organisms having the ability to produce antibiotics? Lung infection was suspected, and a chest X-ray was performed which showed infection in both lungs. 2. A 19-year-old male living in a tropical region of India visited the hospital. c) holozoic d) Coxiella burnetii c) parasitic infection d) Pasteur It gets its name from the Danish bacteriologist Hans Christian Gram who first introduced it in 1882, mainly to identify organisms causing pneumonia. 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. c) Pour-plate and spread plate b) Fermented dairy products A) True Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The following diagram shows an adenovirus: ---- >> Below are the Related Posts of Above Questions :::------>>[MOST IMPORTANT]<, Your email address will not be published. Place the gram of soil into the first tube with saline and SHAKE WELL. Potato Dextrose Agar plate Which of the following method is not used in isolation and screening of desired microorganisms? Which scientist proposed adding a kingdom for protists? Full-form of ATCC is _________ First link in any food chain is usually green plants because. b) ribitol residues View Answer, 16. A) True a) Final treatment The microorganisms from lakes and rivers can grow at a salt concentration of _________ b) coliforms Which of the following foods is NOT made by fermentation? The section contains MCQs on size, shape and arrangement of bacterial cells, cell wall, structures external and internal to the cell wall. d) proteins d) Phaeophycophyta a) Mesophile View Answer, 4. d) Phenol red coliform bacteria in drinking water, the source is probably environmental and fecal contamination is unlikely. 26. d) Corynebacterium diphtheriae Which of the following dye is colourless at acidic pH and becomes red at basic pH? 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. Some bacteria are capable of spore formation so they are highly heat resistant and some are capable of producing heat-resistant toxins. Which of the following microorganism is eliminated in canned foods? c) Bacillus thuringiensis 5.6 - 8.2 form of c. 3.0 - 6.0 d. 8.0 - 14.0 a. Organic compounds b. Inorganic compounds 14. Screening includes primary screening and secondary screening. The section contains MCQs on phages structure and morphology, bacterial viruses replication, lysogeny and lytic. c) 5 8 The section contains questions and answers on energy utilization in biosynthetic and nonbiosynthetic processes, transcription and translation of genetic information and protein synthesis process. Clarification: Phenol Red plate is used to detect and isolate organic acid producers. d) Indicator dye technique lack of cell wall. 13. d) Pedoviridae Therefore, in screening experiments for the selection of PGPM it is necessary to know about the environmental requirements of the target plant and . A. Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. Which of the following is a type of fungal microorganism? These microorganisms have been often under-appreciated and under-studied. Answer: B How do you isolate microorganisms from the soil? A. Answer: B 3. C. Enrichment Culture technique b) False Microbiology MCQ. a) True B) False, Pasteurization is used to sterilize milk. Gram negative bacteria take the color of safranin stain and appear pink or red. Screening - It refers to the isolation of only those microorganisms which are of interest from among a large population of microbes. View Answer, 7. Answer: C What are the methods of isolating the pure culture of microorganisms? 14. Which shape of bacteria has been represented in the following diagram?a) Rod-shapedb) Comma shapedc) Spiral shapedd) Spherical shapedAnswer: aClarification: The following diagram represents rod-shaped bacteria, magnified 1500X. Multiple Choice. (4) This may be accomplished by paper, thin layer, chromatographic technique. The growth factor-like amino acids, vitamins promotes the growth of auxotrophic mutants. Definition: true bacteria; bacteria excluding the archaea. View Answer, 27. A) True You can also prevent infections through: Hand-washing. 8. E. coli is a sub-group of the fecal coliform group. 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. b) Auxanographic technique B) sulfites. View Answer, 38. How Many Toes Does A Brahma Chicken Have, How Much Are Dugout Seats At Fenway?, Premier Psychiatry Canandaigua, Ny, Elizabeth Cole Obituary, Articles S

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