Lab Quiz 5

This crossword was created by Gary E. Kaiser with EclipseCrossword - www.eclipsecrossword.com

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20          21                  22  23
                                     
                   
                   
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Across

  1. Disease that causes an estimated 2.5 million cases per year in the U.S. In females, it usually appears as vaginitis with itching and a white discharge. In males it is often asymptomatic but may cause urethritis. It is transmitted mainly by venereal contact. Moves by flagella.
  2. Ultraviolet radiation kills bacteria by causing _______________.
  3. Roundworm disease where humans become infected by ingesting water or food contaminated with feces that contains ova or from fingers contaminated with polluted soil. Ova have a serrated edge.
  4. Radiation that causes thymine-thymine dimers to form in DNA but has poor penetrating power.
  5. The materials dissolved in a solution.
  6. The infected cells in which the protozoan Plasmodium is reproducing.
  7. Kills microorganisms by denaturing their proteins (causes proteins and enzymes to lose their three-dimensional functional shape). It also may melt lipids in cytoplasmic membranes. (2 words)
  8. Roundworm disease where humans, frequently children, become infected by inhaling ova or from transfer of ova to the mouth from fecally-contaminated fingers. Ova have a smooth edge.
  9. An agent that will kill microorganisms and viruses is __________ in action.
  10. Helminth disease where humans become infected by eating poorly cooked infected beef, pork, or fish containing cysticerci. Worm attaches by means of a scolex.
  11. A head-like structure with distinct suckers and possibly hooks that tapeworms use to attacht to the intestinal wall.
  12. This disease is transmitted to humans by ingesting raw meat of an infected mammal or by inhaling or ingesting cysts of T. gondii from cat feces. Pregnant women should be especially careful to avoid raw meat and cat feces.
  13. An agents used to disinfect inanimate objects but generally to toxic to use on human tissues.
  14. Sterilization is the process of destroying all living organisms and viruses.
  15. Kills microorganisms through a process of protein oxidation rather than protein coagulation. (2 words)
  16. A test is one done under the actual conditions of normal use. (2 words)
  17. The normal flora of the skin.
  18. Antibiotics thatare effective against a variety of both gram-positive and gram-negative bacteria. (2 words)
  19. The treatment of an object or inanimate surface to make it safe to handle.
  20. An agent that kills or inhibits growth of microbes but is safe to use on human tissue.

Down

  1. An organism that has both male and female sex organs is said to be ________________.
  2. The mild heating of milk and other materials to kill particular spoilage organisms or pathogens.
  3. An environment where the concentration of dissolved materials or solute is higher outside of the cell than inside and water flows out of the cell.
  4. Disinfection is the elimination of microorganisms from inanimate objects or surfaces.
  5. A metabolic product produced by one microorganism that inhibits or kills other microorganisms.
  6. The agent used must inhibit or kill the microorganism in question without seriously harming the host. (2 words)
  7. An agent that will inhibit the growth of microorganisms is ___________ in action.
  8. The microorganisms you pick up from what you have been handling.
  9. An agent that reduces, but may not eliminate, microbial numbers to a safe level.
  10. The most common protozoan intestinal disease in the U.S. and is transmitted by the fecal-oral route. Uses flagella for motility.
  11. A test is one done under artificial, controlled laboratory conditions. (2 words)
  12. Agents that are effective against just gram-positive bacteria, just gram negative bacteria. (2 words)
  13. Common name for a tapeworm.
  14. Helminth disease where humans become infected either by ingesting poorly cooked fish, crayfish, crabs, snails, or water vegetables infested with flukes or by larva that directly penetrate the skin. Has suckers for attachment.
  15. An environment where the concentration of dissolved materials or solute is higher inside the cell than it is outside and water flows into the cell.
  16. Chemical agents are generally unreliable for sterilization because of bacterial _______________.
  17. X-rays and gamma rays, that can disrupt DNA molecules and proteins are examples of ________________ radiation.
  18. Common name for a roundworm.
  19. The flow of water through a semipermeable membrane, such as the cytoplasmic membrane of microorganisms, towards the side with a higher concentration of dissolved materials.


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