Cell StructureCell Structure
Cell OrganellesCell Organelles
• Little organs- carry out life processes in the cell
1. Lysosome 1. Lysosome
• Cellular digestion, contains enzymes
2. Golgi Apparatus2. Golgi Apparatus
• Collects, packages, modifies molecules
3. Mitochondria 3. Mitochondria
• “Powerhouse”, releases energy
• (ATP)
4. Centrioles 4. Centrioles
• ANIMAL cell reproduction
5. Vacuoles-5. Vacuoles-
• Storage
6. Ribosomes-6. Ribosomes-
• Site of protein synthesis
7. E. Reticulum7. E. Reticulum
• Intracellular transport (within the cell)
8. Nuclear Envelope8. Nuclear Envelope
• Separates nucleus from cytoplasm– Cytoplasm- living
material between nucleus and cell membrane
9. Nucleolus9. Nucleolus
• Small body in nucleus (RNA & protein)
10. Nucleus10. Nucleus
• Control center of the cell
11. Chromosomes11. Chromosomes
• Contain the genetic material (DNA)
12. Chloroplast12. Chloroplast
• PLANT cells, contains chlorophyll
13. Cell Wall13. Cell Wall
• PLANT cells only, protect & support
14. Cell Membrane14. Cell Membrane
• “Gatekeeper”, controls what enters & leaves the cell
Cell TheoryCell Theory
• Explains the basic role of cells in living things
3 parts3 parts
• 1. All living things are made of cells
3 parts3 parts
• 2. Cells are the basic unit of structure and function in living things
– structure- what it is made of
– function- what it does
3 parts3 parts
• 3. All cells come from pre-existing cells
5 Individuals & Contributions5 Individuals & Contributions
Van LeeuwenhoekVan Leeuwenhoek
• Developed microscope
• 1st to describe living cells
HookeHooke
• 1st to observe cells, dead cork cells
SchleidenSchleiden
• All plants are composed of cells
SchwannSchwann
• All animals are composed of cells
VirchowVirchow
• All cells come from other cells
• All images- clip art