Cells
Introduction and History Robert Hooke coined the term CELLS Robert Hooke coined the term CELLS
Hooke’s Cork Cell Drawing
More History Van Leeuwenhoek called the bacteria he observed in human plaque ANIMALCULES Van Leeuwenhoek called the bacteria he observed in human plaque ANIMALCULES
The Cell Theory All living things are made of cells All living things are made of cells Cells come only from other cells Cells come only from other cells Cells are the basic units of structure and function in living things Cells are the basic units of structure and function in living things
Cell Theory Hooke & Van Leeuwenhoek are first to observe cells > Hooke & Van Leeuwenhoek are first to observe cells > Scheiden & Schwann claim all plants and animals are made from cells > Scheiden & Schwann claim all plants and animals are made from cells > #1 from above #1 from above T-Shirts are available!
Cell Theory Pasteur, Redi, Spallanzini experiments> Pasteur, Redi, Spallanzini experiments> Spontaneous Generation Disproved > Spontaneous Generation Disproved > #2 from above #2 from above
Cell Types Eukaryotic Eukaryotic Prokaryotic Prokaryotic Eukaryotes HAVE a membrane-bound nucleus and organelles, while prokaryotes DON’T Eukaryotes HAVE a membrane-bound nucleus and organelles, while prokaryotes DON’T
Organelle An Organelle is a differentiated structure within a cell that performs a specific function An Organelle is a differentiated structure within a cell that performs a specific function
Cell Parts and Functions
Nucleus Function: Contains genetic material, control center of cell Function: Contains genetic material, control center of cell GENETIC CONTROL GENETIC CONTROL
Ribosomes Function: Produce Proteins Function: Produce Proteins MANUFACTURING MANUFACTURING
Endoplasmic Reticulum Function: Pipe work of the cell Function: Pipe work of the cell MANUFACTURING MANUFACTURING
Golgi Apparatus Function: Modifies, Packages, and helps secrete products Function: Modifies, Packages, and helps secrete products MANUFACTURING MANUFACTURING
Lysosomes Function: Enzymes within break-down and digest specific objects Function: Enzymes within break-down and digest specific objects HOUSEKEEPING & ORGANIZING HOUSEKEEPING & ORGANIZING
Vacuoles Function: Storage Bins Function: Storage Bins HOUSEKEEPING & ORGANIZING HOUSEKEEPING & ORGANIZING
Mitochondria Function: Powerhouse of the cell Function: Powerhouse of the cell ENERGY SOURCE ENERGY SOURCE
Chloroplasts Function: Produces food for the cell Function: Produces food for the cell ENERGY SOURCE and FOUND ONLY IN PLANTS ENERGY SOURCE and FOUND ONLY IN PLANTS
Cell Membrane Function: Holds the cell together and lets material in and out Function: Holds the cell together and lets material in and out SUPPORT STRUCTURE SUPPORT STRUCTURE
Cytoplasm Function: Holds Organelles Function: Holds Organelles SUPPORT STRUCTURE SUPPORT STRUCTURE
Cytoskeleton Function: Provides Shape and Support Function: Provides Shape and Support SUPPORT STRUCTURE SUPPORT STRUCTURE
Cell Wall Function: Protects Cell Function: Protects Cell SUPPORT STRUCTURE and FOUND ONLY IN PLANTS SUPPORT STRUCTURE and FOUND ONLY IN PLANTS