1. Cells: Cell Structure and Functions
Print pages 8-14

2. Cell Discovery Robert Hooke
Observed cork cells with a microscope and discovered cell walls
Named the structure “the cell” because it reminded him of the small rooms (cells) in which the monks lived

3. Components and Functions
Cell Membrane: a selectively permeable membrane that separates the cell from its external environment
Cytoplasm: jelly-like material found inside the cell membrane
Ribosome: organelles where protein are made

4. Components and Functions
Endoplasmic Reticulum (ER): membrane system of folded sacs and tunnels.
Can be rough or smooth.
Smooth ER functions primarily as intracellular highway for movement of molecules from one part of the cell to another.
Also storage of synthesized proteins

5. Components and Functions
Golgi Apparatus: processing, packaging and secreting organelles of the cell
Mitochondria: respiration organelle of the cell. Chemical reaction will release energy (ATP) from the nutrients taken into the cell
Cell Nucleus: contains DNA and chromosomes. The genetic information center of the cell

6. Components and Functions
Nuclear Envelope (Membrane): porous membrane surrounding the nucleus that allows materials in and out of the nucleus
Nucleolus: cell part that helps make ribosomes

7. Components and Functions
Lysosomes: organelle that contains digestive enzymes. They digest food particles, disease causing bacteria captured by white blood cells, and worn out and broken parts of cells.
Centrioles: cell part that helps with cell reproduction

8. Activity
Construct a cell using the given materials