CELLS by yurtgc548

VIEWS: 9 PAGES: 22

									CELLS
CELLS
    • The basic units of
      structure and function
      in the body
    • Animal cells are
      eukaryotic
    • Since we are multi-
      cellular, the cells
      become specialized
                CELL ORGANELLES
• Parts of a cell that carry
  out all functions

• Different cells may
  contain different
  organelles, but some
  parts are common to all
  eukaryotic cells

• Cellular Visions: The
  Inner Life of a Cell
CELL MEMBRANE (PLASMA MEMBRANE)

                  • Controls what enters
                    and leaves the cell.
                    (Think of it as a door or
                    window)
                  • Permeability
                     – Permeable
                     – Semi-permeable
                     – Impermeable
                         NUCLEUS

• The control center of
  the cell.

Computer
Brain
Control panel of a car
CYTOPLASM

     • The watery, jelly-like
       substance that the
       other organelles float
       around in.

     Water
                 MITOCHONDRIA
• The powerhouse of the
  cell that gives energy to
  the cell.

Battery
Sun
Body Builder
Energy Drink

Mitochondria
RIBOSOMES
     • Produce the proteins
       for the cell.
     • Ribosomes are formed
       in the nucleus
     • Then move into the
       cytoplasm to begin the
       process

     Meat, Eggs, Nuts, etc
                  GOLGI BODY

• Stores the proteins that
  the ribosomes produce.

Basket, bag, box, any
storage container.
ENDOPLASMIC RETICULUM
           • Act as a passageway for
             things in the nucleus to
             get into the cytoplasm
           • Also compartmentalize
             the cell
           • Rough ER
           • Smooth ER

           Road, path, sidewalk
                  LYSOSOMES
• Break down dead or
  broken parts of a cell
  (Waste management)

Garbage can, toilet,
recycling symbol
CENTRIOLES

     • Aid in cell division
       (reproduction of the
       cell)

     Baby, Parent/child, EPT
     test, Couple
WHAT DOES EACH REPRESENT?
FUNCTIONS OF CELLS
IRRITIBILITY



       • The ability of cells to
         detect a stimulus
                 CONDUCTIVITY


• The ability of cells to
  transmit electrical
  impulses.
RESPIRATION

     • The ability of cells to
       process food substances
       and oxygen into energy.
                   ABSORPTION
• Absorption/Endocytosis is
  the ability of cells to bring
  things into it. 2 types.
  Pinocytosis- bringing in a
  liquid. (cell drinking)

  Phagocytosis- bringing in a
  solid. (cell eating)
EXOSYTOSIS
     Removal of substances
       from the cell. 2 Types:
     Excretion- The elimination
       of a waste product like
       urine or feces.
     Secretion- the elimination
       of a useful product like
       a hormone or enzyme.
      DIGESTION/ASSIMILATION

• Digestion-the
  breakdown of food.
• Assimilation-the
  chemical conversion of
  food into nutrients.
CONTRACTILITY


      • The ability of a cell to
        change its shape.
ORGANIZATION OF THE BODY

                •   Cells
                •   Tissues
                •   Organs
                •   Systems
                •   Body

								
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