Cell Theory

• ALL LIVING THINGS ARE MADE UP OF ONE OR MORE CELLS.
• CELLS ARE THE BASIC UNIT OF LIVING THINGS.
• ALL CELLS COME FROM EXISTING CELLS.
• ROBERT HOOKE DISCOVERED CELLS IN 1665.
• MATTHIAS SCHLEIDEN, 1838 CONDUCTED THAT ALL PLANTS ARE MADE UP

  OF CELLS.
• THEODORE SCHWANN STATED THAT ALL ANIMALS ARE MADE OF

  CELLS.
• RUDOLF VIRCHOW STATED THAT ALL NEW CELLS COME ONLY

  FROM ALREADY EXISTING CELLS.
• ROBERT BROWN DISCOVERED CELL NUCLEUS.
• ALBRECHT VON KOLLIKER FOUND MITOCHONDRIA IN MUSCLE CELLS.
• JULIUS VON SACHS SHOWED THAT CHLOROPHYLL IS LOCATED

  IN CHLOROPLAST.
• GEORGE PALADE DESCRIBED RIBOSOME
• ORGANELLES ARE STRUCTURES THAT PERFORM SPECIFIC FUNCTIONS

  WITHIN THE CELL.
• ENDOPLASMIC RETICULUM

  • Helps make proteins and other

  substances needed by the cell.

  • Network of folded membranes,

  serves as transportation of the cells.
• NUCLEUS

  • Control center.

  • Directs the cell’s activity
• VACUOLE

  • Storage tank of the cells.

  • Fluid filled spaces in a cell where

  food and water are stored.
• RIBOSOME

  • Protein-making sites of the cell.
• MITOCHONDRIA

  • The power house of the cells.
• LYSOSOME

  • Suicide bags of the cells.

  • Contains chemicals that break down

  harmful molecules and recycle worn-out

  cell part.
• CYTOPLASM

  • Fluid substance that lies between the

  nucleus and the cell membrane.
• CELL MEMBRANE

  • Allows food to enter the cell and

  wastes to exit.
• CELL WALL FOR PLANT

  • Provides support for the cell.
• CHLOROPLAST

  • Green in color because it contains

  green pigment called chlorophyll
• CENTROSOME AND CENTRIOLE

  • Helpers in cell division.