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Indietro

Chapter 7

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Termini in questo insieme (36)

  • Amphipathic

    Contains Both Hydrophobic and Hydrophilic Regions

  • What is The fluid Mosaic Model

    Its A phospholipid, where proteins move laterally in the cell membrane.

    Different Proteins attached to the phospholipid bilayer

    The hydrophobic head faces inward while the hydrophilic head faces outward.

  • What is Integral Proteins

    They penetrate the interior lipid bilayer of the hydrophobic region

  • What is Transmembrane Protein

    Its a type of Integral Protein , that spans the entire membrane

  • What Is Peripheral Protein

    Its Loosely Bound the the surface of the membrane

  • What Is Transport?

    Moves Specific Substance across the membrane.

    (Some Use Atp For active transport.)

  • Enzymatic Activity

    Membrane Protein that act as enzymes to speed up chemical reaction

  • Signal Transduction

    Receptor Protiens that binds with signal molecules to relay message to the cell

  • Cell-Cell Recognization

    GlycoProteins that use identification tags to help cells recognize each other

  • Intercellular Joining

    Membrane Proteins that help connect neighboring proteins using junctions

  • Attachement to Cytoskeleton/ECM

    Helps Maintain Shape

    Stabilises Structure

  • Diffusion

    Goes from higher to lower concentration region

  • Equilibrium

    • Reactions are still happening in both directions.

    • There is no net change in the concentrations of reactants and products.

  • Concentration Gradient

    Region Along which the density of a chemical substance increases or decreases

  • Passive Transport

    Diffusion Of Substance

    Requires No Energy

    Or

    Atp

  • Osmosis

    Diffusion Of water

  • Tonicity

    Surround the cell , either gains or loses water

  • Hypertonic

    Surrounding a cell, Will cause the cell to Loser water causing it to shrivel

  • Hypotonic

    Surrounding a Cell causing the cell to gain Water, causing it to Sweel or burst

    Water enters faster, than leaves

  • Isotonic

    Referring to a solution that, when surrounding a cell, causes no net movement of water into or out of the cell.

  • OsmosRegulation

    Regulation Of Solute Constriction, and water balance by cell or organism

  • What is Plasmolysis

    A phenomenon where the cytoplasm shrives, and the plasma membrane leaves the cell wall, happens when water leaves the cell due to hypertonic Environments

  • Active Transport

    Movement of molecules or ion Across the membrane from lower to higher concentration that require energy or Atp

  • Sodium Potassium Pump

    Transport Proteins in the Membrane, that Transport Sodium Outside the cell and Potassium Inside the cell

    In Animal cell

  • Electrochemical Gradient

    Combined force of a chemical concentration difference and a electrical charge difference across the cell membrane.

  • Facilitated Diffusion

    Passive Transport of molecules or ions across that membrane, Through specific transmembrane protiens.

  • Ion Channels

    Transmembrane Protein that allow ions to diffuse across the membrane down to its consecration gris.

  • Gated Channel

    Transmembrane Protiens that open or close because of a particular stimuli.

  • What Are glycolipids

    Lipids withs one or more covalently attached Carbonhydate

    covalently - joined atoms, by one or more elections

  • Selective Persmibility

    Property of biological membrane that regulate substances across them

  • Aquaporins

    A channel Protein that in a cellular Lebrun, that facilitates osmosis across the membrane

  • electrogenic pump

    An active transport protein that generates voltage across a membrane while pumping ions.

  • proton pump

    An active transport protein in a cell membrane that uses ATP to transport hydrogen ions out of a cell against their concentration gradient,

  • cotransport

    cellular process where a specialized transport protein moves two different substances across a cell membrane at the same time

  • exocytosis

    cells use to move large materials or waste out of the cell

  • Endocytosis

    an active transport process where a cell brings in substances that are too large to pass through the cell membrane by engulfing them