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Streptococci

by Vincent Racaniello, PhD
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    About the Lecture

    The lecture Streptococci by Vincent Racaniello, PhD is from the course Bacteria.


    Included Quiz Questions

    1. They cannot produce the necessary proteases to digest proteins in the host which would normally restrict the spread of the bacteria
    2. They produce an enzyme that converts plasminogen to plasmin
    3. They have multiple ways to avoid destruction by macrophage-like cells
    4. They produce two different kinds of streptolysins
    5. They move systemically through the body
    1. Permanent hoarseness
    2. Non-suppurative sequelae
    3. Acute rheumatic fever
    4. Inflammation of heart tissue
    5. Polyarthritis
    1. Group A Streptococci
    2. Group B Streptococci
    3. S. pneumoniae
    4. S. aureus
    5. S. viridans
    1. Gram positive cocci in pairs or chains
    2. Gram negative cocci in pairs or chains
    3. Gram positive cocci in clusters
    4. Gram negative cocci in clusters
    5. Gram positive rods in pairs
    1. Catalases
    2. Exotoxins
    3. Proteases
    4. Hyaluronidases
    5. DNAases
    1. ...breaks down thrombo-emboli
    2. ...converts plasmin to plasminogen
    3. ...converts fibrin to fibrinogen
    4. ...breaks down extracellular DNA
    5. ...breaks down extracellular hyaluronic acid
    1. Purulent abscesses
    2. Erythema marginatum
    3. Carditis
    4. Chorea
    5. Polyarthritis

    Author of lecture Streptococci

     Vincent Racaniello, PhD

    Vincent Racaniello, PhD


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    Good but could be more inclusive.
    By Imani F. on 17. July 2018 for Streptococci

    I liked how strep was broken down between group A and group B but the video didn't mention the different types of strep in each group ie s. pyogenes. The quiz asked about catalases but didn't mention it in the video.