BIOLOGY THE STUDY OF LIFE

The Cell Cell Theory: All living things are made of one or more cells The cell is the basic structural & functional unit of life All cells come from other cells though the process of cells division (ex. mitosis)

Cells -> The Basic Unit of Life ↓ Tissues -> a group of cells working together ↓ Organs -> a group of tissues working together ↓ Organisms -> a group of organs working together

Cell Types 1. Eukaryotes Animal Plants Protists Fungus 2. Prokaryotes Archaobacteria Eubacteria Introduction to Cells: The Grand Cell Tour Amoeba Sisters https://www.youtube.com/watch?v=8IlzKri08kk&index=5&list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz 4

Protists: Unicellular organisms 1. Eukaryotes Protists: Unicellular organisms Have a nucleus & other organelles Fungus: Can be made of 1 or more cells Have 1 or more nuclei & other organelles

Plants: Multicellular organisms Have a nucleus & other organelles 1. Eukaryotes (cont.) Plants: Multicellular organisms Have a nucleus & other organelles Have a cell wall Have chloroplasts: (organelles for making food via photosynthesis ) Photosynthesis: Carbon Dioxide + Water  Glucose + Oxygen Animal: Multicellular organisms Have no cell wall

2. Prokaryotes Archaobacteria: Eubacteria: Prokaryotes are bacteria. They * Are unicellular organisms. * Have no nucleus * Contain no membrane bound organelles. Archaobacteria: * Bacteria that live in extreme conditions. (ex. near volcanoes; the poles; the Dead Sea & possibly Mars) Eubacteria: * Most bacteria including those that live in soil & on skin & those that cause disease.

Go to Cells alive (size & interactive cell models) http://www.biology.arizona.edu/CELL_BIO/tutorials/pev/page3.html (organelles) CELLS Alive! Go to Cells alive (size & interactive cell models)

Specialized Cells: Significance and Examples Amoeba Sisters https://www.youtube.com/watch?v=wNe6RuK0FfA&list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz&index=6