BIOS 256 Exam 3 Q&A Comprehensive ATI

BIOS 256 Exam 3 Q&A Innate immune Function 1. Which of the following DO NOT form part of physical barriers? a. sweat b. sebaceous secretions c. unbroken skin d. mucous membrane e. T cells 2. The term _____ is given to any foreign substance that stimulates a specific immune system response. a. Antigen 3. The immune defenses are divided into how many basic categories. a. five b. four c. two d. three 4. Chemical barriers include: (Select all that apply) a. Mucous b. Food c. Hydrochloric acid d. Sweat 5. Monocytes differentiate into _________when the cells migrate to tissues. a. macrophages b. neutrophils c. lymphocytes d. basophils In between study questions 6. Nonspecific chemical defenses include: a. lysozyme b. stomach hydrochloric acid c. All of the answers are correct d. lactic acid and electrolytes of sweat e. the skin's acidic pH and fatty acids 7. Which of the following is not an event of phagocytosis? a. Phagolysosome formation b. Chemotaxis c. Diapedesis d. Ingestion e. Destruction 8. Neutrophils, eosinophils, and basophils are called granulocytes because they have prominent cytoplasmic inclusions that appear with identifying, characteristic colors in a stained blood smear. 9. Which of the white blood cells produces chemicals that can attack large helminths? a. Basophils b. Lymphocytes c. Neutrophils d. Eosinophils e. Macrophages 10. Host cells that produce interferon after viral attack can protect themselves from the invasion. a. True b. False 11. The membrane attack stage of the complement cascade involves: a. a ring-shaped protein digesting holes in bacterial cell membranes and virus envelopes b. the production of inflammatory cytokines c. initiation of the cascade d. the cleaving of C3 to yield C3a and C3b e. C1q binding to surface receptors on a membrane