4/ 100% BSE, Fri Apr 1s 56/0/30849 You are logged in as 80013 Dashboard My Cours

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4/ 100% BSE, Fri Apr 1s 56/0/30849 You are logged in as 80013 Dashboard My Courses My Mossages My Doouments Roquest Transaript Contact Us ge BIOD 152 Essential Lab Human Anatomy & Physiology I 2 (10 pts) 3 (10pts) 110 pts 5 (10 pts) (10 pts) 7 (10 pts) 8 (10pts) (10.pts Exam Page 10 Answer the following three questions: Interleukens reset the body's thermostat. Explain why this is a nonspecific immune response. Which lymphatic organ decreases in size with old age? a. thymus b. spleen c. appendb d. tonsils How do B cells show specific immune response? a. B cells produce specific antigens to react with invading viruses b. B cells contain specific glycoprotein receptors on their cell coats c. B celis act as macrophages which target specific invading cells d, B cells interfere with the replication of most viruses in progress :06:48 Click hero to enter enswer BACK DONE REPORT A PROBLEM MacBook Pro

Explanation / Answer

Fever is considered a nonspecific defense mechanism because it develops in response to numerous problems of body, it is not specific for certain kind of microbes or chemicals. Fever is initiated by circulating substances called pyrogens. It basically increases the temperature of body so that certain immune cells can work better and also halt the growth of pyrogens that might damage the body. A. thymus, the functional tissue of thymus atrophies with age. B cells produces antibodies not antigens, the glycoproteins are present on the surface of antigens and not on B cells, macrophages are altogether a different cell and B cells can’t act as macrophages, thus B cells interfere with the replication of most viruses by producing antibodies specifically for them seems like a right choice. So, the answer would be d.

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