by Georgina Cornwall, PhD

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    About the Lecture

    The lecture Membranes by Georgina Cornwall, PhD is from the course Cellular Structure. It contains the following chapters:

    • Membranes
    • Fluid Mosaic Model
    • The Role of Cell Membrane Proteins
    • How Proteins Anchor Themselves in the Membrane
    • The Cytoskeleton
    • Subject of Transport
    • Extracellular Structures and Cell Movement
    • Cell Identity
    • 3 major types

    Included Quiz Questions

    1. Cholesterol
    2. Saturated fatty acid tails
    3. Unsaturated fatty acid tails
    1. Providing a passage for larger or very hydrophilic molecules to move through a membrane
    2. Providing enzymatic activity
    3. There are many types of receptor proteins
    4. Cell-cell recognition and adhesion
    5. Maintaining membrane fluidity
    1. False
    2. True
    1. Actin : muscle contraction and cellular movements
    2. Intermediate filaments : act as structural support of the cell
    3. Microtubules : the smallest of the cytoskeletal elements
    1. Dynactin molecular motor to provide propulsion
    2. Dynin connector proteins to attach assembly to the microtubules
    3. Transport vesicles to carry "goods"
    4. Actin molecules to contract and pull the assembly along the microtubules
    1. Are produced by the immune system to help identify self from non-self
    2. Are embedded membrane proteins that give a cell identity
    1. Tight junctions
    2. Desmosomes
    3. Hemidesmosomes
    4. Gap Junctions

    Author of lecture Membranes

     Georgina Cornwall, PhD

    Georgina Cornwall, PhD

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