Description : ________ occurs if a microbial member of the normal microbiota should gain access to sterile tissue. a. Pathogenicity Islands b. Exogenous Infection c. Endogenous Infection d. Polymicrobial Disease
Last Answer : c. Endogenous Infection
Description : ________ bind to_________ on microbial invaders. a. Toll-like receptors; PAM Ps b. Mast cells; histamine c. Toll-like receptors; complement d. Macrophages; defensins
Last Answer : a. Toll-like receptors; PAM Ps
Description : What is the thermal death time? a. The Time Necessary To Kill Bacteria At A Specific Temperature b. The Temperature Necessary To Kill Microbes In A Specific Time c. The Average Amount Of Time To Kill Microbial Cells d. It Is The Same As The Thermal Death Point
Last Answer : a. The Time Necessary To Kill Bacteria At A Specific Temperature
Description : The flow of genetic material in microbial cells usually takes place from A- RNA through DNA to proteins B- proteins through RNA to DNA C- .DNA through RNA to proteins D- none of these
Last Answer : .DNA through RNA to proteins
Description : A common trait among Herpes viruses is _____. a. Lysogeny b. Lysis c. Laxity d. Latency
Last Answer : d. Latency
Description : When a viral nucleic acid becomes part of the host cell chromosome it is called _____. a. lysis b. lysogeny c. maturation d. latent
Last Answer : b. lysogeny
Description : Area of lysis on a bacterial lawn culture produced by a phage is known as A.pock B.plaque C.pox D.all of these
Last Answer : B.plaque
Last Answer : .plaque
Description : The solubility of most proteins is lowered at high salt concentrations is called as (A) Salting in process (B) Salting out process (C) Isoelectric focussing(D) None of these
Last Answer : Answer : B
Description : Why is microbial control necessary and what are some of the factors that go into the choice of a particular antimicrobial agent?
Last Answer : The control of microorganisms is an important way of preventing pathogens from reaching the body.Sterilizing laboratory equipment, hospital supplies, and industrial apparatus helps contain contamination.The choice of a ... , the acidity or alkalinity of the area, and the presence of organic matter.
Description : The thermal death time is a. The Time To Kill A Microbial Population At A Given Temperature. b. The Time To Kill A Microbial Population In Boiling Water. c. The Temperature To Kill All Pathogens. d. The Minimal Temperature Need To Kill A Microbial Population.
Last Answer : a. The Time To Kill A Microbial Population At A Given Temperature.
Description : One indirect way to determine microbial growth is using a _____. a. UV light b. Spectrophotometer c. Light meter d. Radioactive counter
Last Answer : b. Spectrophotometer
Description : ______ form the bulk of microbial products of industrial interest. a. primary metabolites b. secondary metabolites c. tertiary metabolites d. quaternary metabolites
Last Answer : b. secondary metabolites
Description : Some scientists‘ estimate that in nature, _____ of all microbial activities occur in biofilms. a. 0.25 b. 0.33 c. 0.45 d. 0.6 e. 0.99
Last Answer : e. 0.99
Description : A new field of _________ has arisen from sequencing, analyzing and comparing microbial genomes. a. PCR b. DNA probes c. microbial genomics d. microarrays
Last Answer : c. microbial genomics
Description : Craig Venter‘s sampling of ocean microorganisms is an example of a. Microarrays. b. Horizontal Gene Transfer. c. Microbial Forensics. d. Metagenomics.
Last Answer : d. Metagenomics.
Description : All the following terms apply to microbial killing except: a. Sterilization. b. Microbicidal. c. Bactericidal. d. Fungistatic.
Last Answer : d. Fungistatic
Description : Which one of the following macromolecules would NOT normally be used for microbial energy metabolism. a. DNA b. Proteins c. Carbohydrates d. Fats
Last Answer : b. Proteins
Description : Which of the following disease is not caused by microbial protein toxin? A.Botulism B.Diphtheria C.Shigella dysentery D.Tuberculosis
Last Answer : D.Tuberculosis
Description : The microbial ecosystem of soil includes A.biotic components of soil B.abiotic components of soil C.biotic and abiotic components of soil D.none of the above
Last Answer : C.biotic and abiotic components of soil
Description : Microbial rennet, which is used in cheese manufacture is produced by A- .Mucorspp B- Aspergillusspp C- Bacillus spp D- Saccharomyces spp
Last Answer : Aspergillusspp
Description : Which group of microbial agents is eukaryotic? a. Bacteria b. Viruses c. Archaea d. Algae
Last Answer : d. Algae
Description : What microbiological field was established by Winogradsky and Beijerinck? a. Virology b. Microbial ecology c. Bacteriology d. Mycology
Last Answer : b. Microbial ecology
Description : What group of microbial agent was identified from the work of Ivanowsky a Beijerinck? a. Viruses b. Fungi c. Protozoa d. Bacteria
Last Answer : a. Viruses
Description : Which of the following is used for the proper maintenance and preservation of pure cultures? A- Periodic transfer to fresh media B- Preservation by overlaying cultures with mineral oil C- Preservation by lyophilization D- All of the above
Last Answer : All of the above
Description : Cyanide poisoning causes death in seconds because - (1) It denatures enzymes of the heart/muscle (2) It breaks the electron transport chain (3) It causes Lysis of red blood cells (4) It causes cardiac arrest
Last Answer : (4) It causes cardiac arrest Explanation: Cyanide poisoning occurs on exposure to a com-pound that produces cyanide ions when dissolved in water. The cyanide ion halts cellular respiration by inhibiting ... coma with seizures, apnea, and cardiac arrest, with death following in a matter of seconds.
Description : Cyanide poisoning causes death in seconds because (1) It denatures enzymes of the heart/muscle (2) It breaks the electron transport chain (3) It causes Lysis of red blood cells. (4) It causes cardiac arrest
Last Answer : It causes cardiac arrest
Description : The following statement(s) is/are true concerning newer detection methods of systemic infection. a. Enzyme-linked immunosorbent assay (ELISA) is a rapid immunologic assay used for ... detected using advanced molecular techniques include cytomegalovirus (CMV) and human immunodeficiency virus (HIV)
Last Answer : Answer: a, b, c, d Although the classic detection of infection based on clinical signs of infection and bacterial culture remain the most common clinical tools, increasing ... including CMV and HIV. Furthermore, preliminary investigations into possible detection of fungal pathogens are underway
Description : Which of the following combination of processing and preservation techniques works best for smoked products? A. Salt and acidification B. Heat, salt, dipping in brine/ minimal moisture content C. Heat, salt, acidification/minimal moisture content D. Heat and solid content
Last Answer : B. Heat, salt, dipping in brine/ minimal moisture content
Description : ____ becomes activated to eliminate "nonself" cells, such as virus- infected cells or cancer cells. a. Humoral immune response b. Cell-mediated immune response c. Complement d. Inflammation
Last Answer : b. Cell-mediated immune response
Description : Attenuated viruses are those that _____. a. can be used to treat viral disease. b. give rise to viroids and prions. c. multiply in cells but at a low rate. d. have been treated with chemicals such as formaldehyde.
Last Answer : c. multiply in cells but at a low rate.
Description : How long does the soil remain damaged after salting?
Last Answer : answer:High salt content in the soil discourages plant growth. Armies would create buffer zones between their lands and the lands of their enemies by salting the earth and thus make that area unable ... is important to know when you live along a coastline known to be frequented by tropical storms.
Last Answer : Salt retains water in the body is not good. The kidneys work worse and blood pressure rises.
Description : Plasma protein can be separated by (A) Salting out with (NH4)2SO4 (B) Ultracentrifugation (C) Immuno electrophoresis (D) All of these
Last Answer : Answer : D
Description : Plasma proteins are isolated by (A) Salting out (B) Electrophoresis (C) Flourimetry (D) Both (A) and (B)
Description : What is used for salting out; in the man- ufacture of soap?
Last Answer : Sodium chloride
Description : Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? (A) Long vertical evaporator (B) Horizontal tube evaporator (C) Agitated film evaporator (D) Calandria vertical tube evaporator
Last Answer : (C) Agitated film evaporator
Description : Thrombolytic therapy has become a useful adjunct in the management of peripheral arterial occlusion. In this setting, direct intraarterial administration rather than intravenous has been advocated ... may be indicated for situations where complete clot evacuation cannot be accomplished surgically
Last Answer : Answer: a, b, e The most popular method for intraarterial thrombolytic therapy for arterial occlusion involves passing a guidewire through the thrombus with arteriographic guidance and ... acute arterial occlusion) or when distal vasculative is occluded and precludes appropriate inflow patency
Description : Which of the following is NOT an enzyme a pathogen might use to gain entrance into the body? a. Coagulase b. Streptokinase c. Hemolysin d. A-C Are Correct
Last Answer : d. A-C Are Correct
Description : When domestic sewage mixes with river water (a) small animals like rats will die after drinking river water (b) the increased microbial activity releases micronutrients such as iron (c) the increased ... (d) the river water is still suitable for drinking as impurities are only about 0.1%.
Last Answer : (c) the increased microbial activity uses up dissolved oxygen
Description : Which one of the following processes during decomposition is correctly described? (a) Catabolism - Last step in the decomposition under fully anaerobic condition (b) Leaching - Water soluble inorganic ... of a dark coloured substance humus which undergoes microbial action at a very fast rate.
Last Answer : (c) Fragmentation – Carried out by organisms such as earthworm
Description : Microbial breakdown of phenoxy herbicides such as 2,4-D and MCPA is enhanced by addition of a). Nitrate b). Sulphate c). Phosphate d). Chlorate
Last Answer : c). Phosphate
Description : Biosensers are used as (a) Purified enzymes (b) Antibodies (c) Whole microbial cells (d) Any of the above
Last Answer : (c) Reverse transcriptase
Description : Two methods for transmitting leprosy are a. Arthropod Bites And Fomites. b. Skin Contact And Respiratory Droplets. c. Arthropod Bites And Contaminated Food. d. Contaminated Water And Food.
Last Answer : b. Skin Contact And Respiratory Droplets.
Description : Plasmid DNA isolation by alkaline lysis method. -Biology
Last Answer : answer:
Description : Lysis of foreign cell is initiated by antibodies of:
Last Answer : Lysis of foreign cell is initiated by antibodies of: A. IgM B. IgA C. IgE D. IgM and IgG
Description : Euglobulin lysis time?
Last Answer : DefinitionEuglobulin lysis time (ELT) is a blood test that looks at how fast clots breakdown in the blood.Alternative NamesEuglobulin clot lysis; Fibrinolysis/euglobulin lysis; ELTHow the test is ... stinging sensation. Afterward, there may be some throbbing.Why the test is performedThis is o
Description : An enzyme which brings about lysis of bacterial cell wall is (A) Amylase (B) Lysozyme (C) Trypsin (D) Lipase
Description : .Viruses that infect bacteria multiply and cause their lysis, are called (a) lysozymes (b) lipolytic (c) lytic (d) lysogenic
Last Answer : (c) lytic