HWK 11 for SCI 215 PDF

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Grade was B for late submission, but overall correct. ...

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HWK 11 (chapter 16) MCQ:

1- Disease-causing microorganisms are known as ____. a. vectors b. hosts c. agents d. pathogens e. bacteria 2- Which pathogens consist of bits of nucleic acid within a protein coat? a. viruses b. helminths c. protozoa d. bacteria e. parasites 3- Which organisms lack chlorophyll and reproduce by means of spores? a. bacteria b. helminths c. algae d. protozoa e. fungi 4- The various types of white blood cells that patrol the entire body by way of the blood and lymph vessels are known collectively as ____. a. incubators b. antigens c. vectors d. lymphocytes e. transmitters 5- The antibody-containing portion of blood fluid is known as ____. a. macrophage b. systemic c. gamma globulin d. immune efficiency e. lymphocyte

6- Which medical condition occurs when the body’s immune system declares war on the cells, tissues, and organs it normally protects? a. systemic disease b. autoimmune disorder c. immune deficiency d. gamma globulin e. inflammation 7- What generic term applies to any type of fairly common, highly contagious viral disease? a. hepatitis b. systemic disease c. influenza d. allergies e. meningitis 8- Which bacterium is responsible for the “superbug” threat? a. HIV b. MRSA c. Herpes gladiatorum d. SARS e. Clostridium difficile 9- Which respiratory infection became a global health threat in 2003 and 2004, with major outbreaks in several Asian countries? a. Ebola b. West Nile virus c. Epstein-Barr virus d. SARS e. avian influenza 10- Which type of hepatitis is linked to fecal contamination of food or water? a. hepatitis A b. hepatitis B c. hepatitis C d. hepatitis Delta e. hepatitis E 11- Which autoimmune disorder attacks the adrenal glands?.

a. Crohn’s disease b. Addison’s disease c. Ebola d. SARS e. systemic lupus erythematosus 12- When the flu hits a household, the last one left standing is likely to be ____. a. Dad b. the teen son c. Grandpa d. the toddler e. Mom 13- Which white blood cells have insatiable appetites for foreign cells, diseased and run-down red blood cells, and other biological debris? a. B cells b. antigens c. T cells d. macrophages e. incubators 14- Typhoid fever and cholera are examples of ____ diseases. a. foodborne b. tick-borne c. airborne d. mosquito-borne e. waterborne 15- Which autoimmune disorder affect the skin, joints, kidneys, heart, brain, and red blood cells? a. Crohn’s disease b. Addison’s disease c. Ebola d. SARS e. systemic lupus erythematosus Short essay 1- How does stress affect the body’s immune system and response to infection?

Stress will affect the body in two different ways: the controllability and uncontrollability of the stressor and mental effort required to cope with the stress. An uncontrollable stressor that lasts longer than 15 mins may interfere with cytokine interleukin-6 which plays a role in activating the immunes defenses. It can also suppress immune system functioning. 2- How do health officials decide whether to declare an outbreak, epidemic, or a pandemic? An outbreak is a sudden rise in the incidence of a disease. Epidemic affects an atypically large number of individuals within a population, community, or region at the same time. Pandemic occurs over a wide geographic area and affects an exceptionally high proportion of the population....