Physio day14- intro to cells
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Physio day14- intro to cells

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Physio day14- intro to cells Physio day14- intro to cells Presentation Transcript

  • Abrew- Physiology
    TODAY’S AGENDA:
    • Inquiry Chart (20)
    • Group activity-(CCD Chart)- Ch. 3.1-3.2 (20)
    • Notes- Overview of Cells (30)
    • Exit Quiz (5)
    29AugustM
    • Read p. 65-67
    • Reading Quiz Tuesday
    • Ch. 1 Test Remediation's- Due Friday
    ESLRs Addressed:
    1. + Citizenship
    2. + relationships
    3. Problem Solvers
    4. Effective communicators
    Today’ objectives:
    Name the 4 elements that make up the bulk of living matter.
    List several trace elements.
    Define a generalized cell.
  • Review- Cell Discovery
    Robert Hooke (1600’s)
    Cork Plant tissue
    Cube-like structures, reminder of “cells” at a monastery
    Cells- smallest unit (or building block) of all living things
    Human body- trillions of cells
  • Robert Hooke
  • Overview of the Cellular Basis of Cells (Ch. 3.1)
    Chemical makeup of cells;
    Primarily made up of4 elements
    Carbon
    Oxygen
    Hydrogen
    Nitrogen
  • Overview of the Cellular Basis of Cells
    Remaining part of cell is made up of several trace elements…
    Calcium
    Iron
    Iodine
    Sodium
    Potassium
  • Trace Elements and their cellular functions
    Calcium- needed for blood clotting
    Iron- makes hemoglobin which carries oxygen in the blood
    Iodine- required to make a thyroid hormone that controls metabolism
    Metals (Ca, Na, and K) can carry an electric charge when in their ionic form= electrolytes
    Na and K essential for transmission of nerve impulses in muscle contraction
  • Cell Facts
    Water- makes up about 60% of a cell!!!
    Cells are constantly bathed in interstitial fluid (dilute saltwater solution), derived from the blood.
    All chemical exchanges (between blood and cell) are made through the interstitial fluid.
  • Vary in length…
    2 micrometers- over 3 feet (nerve cells)
    Structure reflects function
    Cell Facts
  • Anatomy of the Generalized Cell (Ch. 3.2)
    Generalized Cell- typical features of all cells.
    3 Main features of most cells:
    Nucleus- (control-center, “headquarters”, contains genetic material)
    Plasma membrane- (fragile barrier that contains the cells contents and separates the them from the surrounding environment)
    Cytoplasm- (the material outside the nucleus and inside the plasma membrane)
  • Generalized Cell
  • Exit Quiz
    What are the 4 primary elements that make up a cell?. (4pts)
    What is the name of the fluid that cells are bathed in? (1pt)
    List at least 4 trace elements? (4pts)
    What are the 3 main features of a cell? (3 pts)