1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.
2. If their phone camera doesn't automatically detect and decode QR codes, ask students to
4. Cut them out and place them around your class / school.
1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.
2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.
3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Question | Answer |
1. A staining procedure that differentiates between bacteria based on their ability to retain a dye when washed with an acid alcohol solution. | acid-fast staining | 2. Refers to the type of specific immunity that develops after exposure to a suitable antigen or is produced after antibodies are transferred from one individual to another. | acquired immunity | 3. An organism that grows in the presence of atmospheric oxygen. | aerobe | 4. Microorganisms that grow equally well whether or not oxygen is present. | aerotolerant anaerobes | 5. A complex sulfated polysaccharide, usually extracted from red algae, that is used as a solidifying agent in the preparation of culture media. | agar | 6. The formation of an insoluble immune complex by the cross-linking of cells or particles. | agglutination reaction | 7. The type of infectious organism transmission in which the pathogen is truly suspended in the air and travels over a meter or more from the source to the host. | airborne transmission | 8. A greenish zone of partial clearing around a bacterial colony growing on blood agar. | alpha hemolysis | 9. A cell with a single flagellum at each end. | amphitrichous | 10. An antibiotic from a strain of Streptomyces nodosus that is used to treat systemic fungal infections; it also is used topically to treat candidiasis. | amphotericin B | 11. An organism that grows in the absence of free oxygen. | anaerobe | 12. An immediate (type I) hypersensitivity reaction following exposure of a sensitized individual to the appropriate antigen. Mediated by reagin antibodies, chiefly IgE. | anaphylaxis | 13. Without oxygen present. | anoxic | 14. A microbial product or its derivative that kills susceptible microorganisms or inhibits their growth. | antibiotic | 15. An apparatus for sterilizing objects by the use of steam under pressure. Its development tremendously stimulated the growth of microbiology. | autoclave | 16. An organism that uses CO2 as its sole or principal source of carbon. | autotroph | 17. A mutated prototroph that lacks the ability to synthesize an essential nutrient and therefore must obtain it or a precursor from its surroundings. | auxotroph | 18. The organ of motility in spirochetes. | axial filament | 19. The presence of viable bacteria in the blood. | bacteremia | 20. A protein produced by a bacterial strain that kills other closely related strains. | bacteriocin | 21. A virus that uses bacteria as its host; often called a phage. | bacteriophage | 22. Inhibiting the growth and reproduction of bacteria. | bacteriostatic | 23. A phagocytic leukocyte whose granules stain bluish-black with a basic dye. It has a segmented nucleus. The granules contain histamine and heparin. | basophil | 24. A zone of complete clearing around a bacterial colony growing on blood agar. | beta hemolysis | 25. Asexual reproduction in which a cell or an organism separates into two cells. | binary fission | 26. Organized microbial systems consisting of layers of microbial cells associated with surfaces, often with complex structural and functional characteristics. | biofilms | 27. The use of biologically mediated processes to remove or degrade pollutants from specific environments. | bioremediation | 28. The coupling of a biological process with production of an electrical signal or light to detect the presence of particular substances. | biosensor | 29. An acute infectious enteritis, endemic and epidemic in Asia, which periodically spreading to the Middle East, Africa, Southern Europe, and South America; caused by Vibrio cholerae. | cholera | 30. An enzyme that induces blood clotting; it is characteristically produced by pathogenic staphylococci. | coagulase | 31. A gram-negative, nonsporing, facultative rod that ferments lactose with gas formation within 48 hours at 35°C. | coliform | 32. Living on or within another organism without injuring or benefiting the other organism. | commensal | 33. A bacterial cell that can take up free DNA fragments and incorporate them into its genome during transformation. | competent | 34. A DNA copy of an RNA molecule. | complementary DNA (cDNA) | 35. A host with lowered resistance to infection and disease for any of several reasons. | compromised host | 36. The form of gene transfer and recombination in bacteria that requires direct cell-to-cell contact. | conjugation | 37. Culture medium made with components of known composition. | defined medium | 38. A treelike diagram that is used to graphically summarize mutual similarities and relationships between organisms. | dendrogram | 39. The reduction of nitrate to gas products, primarily nitrogen gas, during anaerobic respiration. | denitrification | 40. A thin film on the surface of teeth consisting of bacteria embedded in a matrix of bacterial polysaccharides, salivary glycoproteins, and other substances. | dental plaque | 41. To make a sensitized or hypersensitive individual insensitive or nonreactive to a sensitizing agent. | desensitization | 42. A pair of cocci. | diplococcus | 43. An enzyme that joins two DNA fragments together through the formation of a new phosphodiester bond. | DNA ligase | 44. An enzyme that synthesizes new DNA using a parental DNA strand as a template. | DNA polymerase | 45. The process in which a cell takes up solutes or particles by enclosing them in vesicles pinched off from its plasma membrane. | endocytosis | 46. An extremely heat- and chemical-resistant, dormant, thick-walled spore that develops within bacteria. | endospore | 47. An organism that lives within the body of another organism in a symbiotic association. | endosymbiont | 48. The heat-stable lipopolysaccharide in the outer membrane of the cell wall of gram-negative bacteria that is released when the bacterium lyses, or sometimes during growth, and is toxic to the host. | endotoxin | 49. An acute inflammation of the lining of the stomach and intestines, characterized by anorexia, nausea, diarrhea, abdominal pain, and weakness. | gastroenteritis | 50. Inflammation of the stomach. | gastritis | 51. The time required for a microbial population to double in number. | generation time | 52. A network of polysaccharides extending from the surface of bacteria and other cells. | glycocalyx | 53. An individual who harbors a pathogen, but is not ill. | healthy carrier | 54. A kidney disease characterized by blood in the urine and often by kidney failure. It is caused by enterohemorrhagic strains of Escherichia coli O157:H7 that produce a Shiga-like toxin, which attacks the kidneys. | hemolytic uremic syndrome | 55. The body of an organism that harbors another organism. | host | 56. Granules of organic or inorganic material lying in the cytoplasmic matrix of bacteria. | inclusion bodies | 57. The period after pathogen entry into a host and before signs and symptoms appear. | incubation period | 58. The dose or number of organisms that will infect 50% of an experimental group of hosts within a specified time period. | infectious dose 50 (ID50) | 59. A localized protective response to tissue injury or destruction. | inflammation | 60. Molecules that can be inserted between the stacked bases of a DNA double helix, thereby distorting the DNA and inducing insertion and deletion mutations. | intercalating agents | 61. The ability of a microorganism to enter a host, grow and reproduce within the host, and spread throughout its body. | invasiveness | 62. A set of rules for proving that a microorganism causes a particular disease. | Koch's postulates | 63. A period following the introduction of microorganisms into fresh culture medium when there is no increase in cell numbers or mass during batch culture. | lag phase | 64. The dose or number of organisms that will kill 50% of an experimental group of hosts within a specified time period. | lethal dose 50 (LD50) | 65. A cell with a cluster of flagella at one or both ends. | lophotrichous | 66. Virus life cycle that results in the lysis of the host cell. | lytic cycle |
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