Mmbio 221 final exam - Study guides, Class notes & Summaries

An acid-fast pathogen; over one-third of the world's population is infected; caseous necrosis is a hallmark of disease; MDR, XDR, BCG, and DOTS apply to this organism. Mycobacterium tuberculosis The most common cause of non-nosocomial urinary tract infections, usually in women; also the cause of the life-threatening disease known as hemolytic uremic syndrome. Escherichia coli Brainpower Read More Causes a life-threatening disease in individuals experiencing crowded and stressful l...

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...

An interferon is - a protein released by virally infected human cells to trigger production of antivirals in neighboring cells These antibodies are commonly found in mucus and are the most abundant in our body - IgA antibodies These cells have many identical antibodies on their surface that recognize a particular antigen. When activated the cells differentiate and proliferate into memory cells as well as plasma cells, which secrete antibodies - B cells Found on the surface of all nuclea...

MMBIO 221 FINAL EXAM STUDY GUIDE 2024 Who is the father of microscopy? Antonie van Leeuwenhoek Lamp: produces visible light to illuminate the specimen Condenser: collects light and directs it through the stage opening (converges or focuses the rays of light to a single point) Iris diaphragm: regulates the amount of light available to the objective lens Factors that affect microscope function: Resolving power, numerical aperture, magnification, working distance Resolving power: ab...

Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children and 20-50% of adults, cord fact...

Define and describe the physical, chemical, and cellular components of the innate immune response. - Physical factors are barriers to entry or processes that remove microbes from the body's surface The epidermis consists of layers of tightly packed epithelial cells that are periodically shed. (makes up dust) That it is dry makes it inhospitable to microbes. Cebum- unsat fatty acids; inhibit growth of persperation Chemical factors are substances made by the body that inhibit microbial gr...

MMBIO 221 Final Exam Questions With Verified Answers. Developed smallpox immunization using cowpox agent - answerEdward Jenner Sought a "magic bullet" to destroy pathogens & not host - answerPaul Ehrlich Discovered penicillin - answerAlexander Fleming Pioneered aseptic surgery, Prevented surgical infections by using mists of phenol - answerJoseph Lister Father of Epidemiology (Cholera in London) - answerJohn Snow Pioneered asepsis by discovering that hand washing prevented streptococc...

MMBio 221 Final Exam Study Questions and Answers Graded A 2024 Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are phagocytized, capacity for intracellular growth, resistance to Gram- staining, detergents, many antimicrobial drugs, and dessication - Mycobacterium Tuberculosis Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when red swelling appears, BCG vaccine is used in countries w/ lots o...

MMBIO 221 Final Exam Study Questions and Answers Graded A 2024 Verified 100% An interferon is - a protein released by virally infected human cells to trigger production of antivirals in neighboring cells These antibodies are commonly found in mucus and are the most abundant in our body - IgA antibodies These cells have many identical antibodies on their surface that recognize a particular antigen. When activated the cells differentiate and proliferate into memory cells as well as ...