Which of the following statements is/are FALSE? 1. Autoimmune diseases can be ca

Question

Which of the following statements is/are FALSE? 1. Autoimmune diseases can be caused by foreign antigens that closely resemble "self antigens." 2. Faulty immunocompetence processes (Iymphocyte programming) could be to blame for the sudden onset of autoimmune diseases. 3. Severe Combined Immunodeficiency Syndrome or SCID is a debilitating condition where the individual's entire immune system is non-functional -the "boy-in-the-bubble." 4. In Multiple Sclerosis (MS) antibodies attack myelin sheaths hampering neurotransmission. 5. Rheumatoid Arthritis results when your immune system "attacks" your body's joints. 6. Anaphylactic shock can result in death and is nothing more than an extreme allergic response. a. 1, 3, 4 b. 2, 4, 6 c, 1, 3, 5, 6 d. All of the above e. None of the above Which of the following statements are TRUE? 1. Interferons are chemicals released by viral-infected body cells as a means to "warn" their neighbors about the imminent viral assault. 2. The movement of neutrophils towards an area of injury or infection following at secreted chemicals is called positive chemotaxis. 3. Your body's Innate Defenses consist of surface barriers as well as internal defense mechanisms. 4. Natural Killer Cells do their job of assassination of invaders by simple phagocytosis. 5. Fever actually serves useful purposes including speeding up enzyme activity and to essential nutrients like Fe & Zn-therefore keeping them from bacterial invaders. 6. Each individual plasma cell can produce ridiculous amounts of antibodies about 2,000 antibodies/second for their short 4 to 5 day lifespan. a. 1, 2, 4, 5 b. 2, 3, 4, 6 c, 2, 3, 5, 6 d. 1, 2, 3, 5, 6 e. 1, 2, 3, 4, 5, 6

Explanation / Answer

In question number 27: The option to be selected should be e-None of the above as all the statements stated are true.

In question number 28: The option to be selected should be d-1,2,3,5,6. The 4th option is 'False'; the reason being that, the Natural Killer cells do their job of assassination of invaders by cytokine release leading to lysis or apoptosis and not phagocytosis which is seen in the case of neutrophils, macrophages, mast cells and dendritic cells.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.