I. engulfs and digests pathogens

Transcription

1 Name period date assigned date due date returned Match the following vocabulary words to their definition. Please write a capital letter in the blank. 1. pathogen 2. white blood cells 3. macrophage 4. T cell 5. B cell 6. immunity 7. allergy 8. cancer A. a substance prepared from killed or weakened pathogens that is introduced into the body to provide immunity. B. cells that travel though the bloodstream and body searching out pathogens.. disorder in which the immune system is overly sensitive to a foreign substance. D. the ability to resist or recover from an infectious disease. E. travels through the body looking for pathogens.. disease in which cells multiply uncontrollably, destroying healthy tissue. G. creates antibodies to attack pathogens H. something that causes illness. Pathogens can be a virus, bacteria, protein, fungi or protist. I. engulfs and digests pathogens 9. vaccine 1

2 10 The map below charts a cholera outbreak in London. Each dot represents a patient that had cholera. According to the map, which water well do you think was infected by cholera? A well #10 B well #6 well #2 D well #5 2

3 11 Sally visits Megan s house to play with Megan s new kitten. Within a few minutes, Sally s nose is running and she is sneezing. What is most likely causing Sally s symptoms? 13 When virus particles enter a person s body, the body responds by following a specific pattern. Which of the following steps happens earliest in the fight against an invading virus? Sally caught a cold from Megan. Viral particles are engulfed by macrophages. G Sally caught a virus from the cat. H Sally is developing an autoimmune disease. Sally is having an allergic reaction to the cat. G B cells divide to make cells that can make antibodies. H Helper T cells recognize the viral antigens on macrophages. Killer T cells recognize viral antigens and destroy the infected cell. 12 ake is helping clean the garage. When he sweeps a dusty corner, he sneezes and his eyes water. Which of the following best describes his body s response to the dust particles? 14 Which of the following would most likely cause an immune deficiency disorder? A rapid or uncontrolled cell division. A an external defense B an internal defense an immune disorder D an inflammatory response B a pathogen impairs the body s immune system the production of macrophages by the immune system D an allergic reaction to an ordinarily harmless substance 3

4 15 When Kristen was five, she became sick with chickenpox and then recovered. Why is Kristen unlikely to get chickenpox a second time? 17 The picture below illustrates one phase of the body s immune response. Kristen has not developed antibodies to chickenpox. G Kristen has developed a vaccination against chickenpox. H Kristen s body no longer contains cells that can be damaged by chickenpox. What process is illustrated in the picture? Kristen s body has memory cells that will produce antibodies to fight chickenpox. A B cell is making antibodies. G AN antibody is attaching to an antigen. H A macrophage is engulfing a pathogen. A helper T cell is activating a killer T cell. 16 Which term refers to a disease caused by uncontrolled growth of body cells? A virus B cancer antigen D immunity 4

5 18 The pictures below show three types of cells. Which of the following is true of these three cells? A These are different examples of bacteria. B These cells cause different types of cancer. D All three cells are types of white blood cells. The B cell and T cell are pathogens that the macrophage fights against. 19 What is a vaccine? G H A protein that can attack pathogens or tag antigens for destruction by blood cells. A weakened pathogen that can infect the body only with a weakened form of the disease. A substance prepared from a killed or weakened pathogen that helps the body build immunity. A type of white blood cell that remembers a specific pathogen and can produce antibodies to fight that pathogen. 5