MMBio 221 Study guides, Class notes & Summaries

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 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 living...

What signs and symptoms may be seen in a cytomegalovirus infection? Correct Answer-Fever, hepatosplenomegaly, mental and/or developmental retardation, and death What is the causative agent of infectious mononucleosis? Correct Answer-Epstein-Barr virus What kind of pathogen is Rickettsia rickettsii? Correct Answer-Bacterium Infectious endocarditis is generally treated with which antibiotic? Correct Answer-Penicillin Rocky Mountain fever is treated using which antibiotics? Correct Answ...

An interferon is Correct Answer-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 Correct Answer-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 Correct Answer-B cell...

Staphyloccus aureus Correct Answer-- toxic shock syndrome - food poisoning - impetigo - scalded skin syndrome Streptococcus pyogenes Correct Answer-- pharyngitis - scarlet fever, pyoderma - toxic shock syndrome - necrotizing fasciitis - rheumatic fever - glomerulonephritis Streptococcus agalactiae Correct Answer-infections in neonates alpha-hemolytic streptococci Correct Answer-dental caries Streptococcus pneumoniae Correct Answer-pneumonia, otitis media Enterococcus speci...

Chapter 16 MMBIO 221 Questions with Complete Solutions

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 ...

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 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...

Suspected Case - shows symptoms consistent w/ outbreaks Probable Case - symptoms consistent w/ definition Prevalence - number of cases of a disease that is always in an area prevelance rate= total cases/ population Incidence - number of new cases/number of people at risk of the disease Kochs Postulates - 1. The suspected organism should be present in all cases of the disease and absent from healthy animals 2. The suspected organism should be grown in pure culture 3. Cells from ...

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...