Bios 242 Exam 3 Study Guide Fundamentals Of Microbiology With Lab Newest Exam 2024-2025

BIOS 242 EXAM 3 STUDY GUIDE FUNDAMENTALS OF MICROBIOLOGY WITH LAB NEWEST EXAM 2024-2025 WITH ACTUAL QUESTIONS AND SOLVED ANSWERS|ALREADY GRADED A+ :ost defenses 1. (non specific) innate - first and second line of defense 2. (specific) acquired - third line of defense First line of defense skin and mucous membranes. keep microbes from penetrating sterile body second line of defense protective cells and fluids; inflammation and phagocytosis - nonspecific fever third line of defense specific host defenses developed uniquely from each infection B cell and T cellsPhysical barriers to infection skin and mucous membranes chemical barriers to infection -saliva, tears, and mucus which all contain the enzyme lysozyme, which degrades bacterial cell walls and causes them to lyse, or burst -cells continuously secrete antimicrobial peptides into the bloodstream -skins acidic p: specific immunity -response focused on a single antigen -at least one cell that can react against antigen -only when triggered - no reaction with self-antigens - preprogrammed for recall fist line of defense in the mouth saliva (lysozyme) develop and mature in red bone marrow B cells mature...mature in the thymus develop in bone marrow T cells mature... antigen -immunogen -chemical substances that cause specific immune response function