1. BIOLOGY
THE STUDY OF LIFE

2. 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)

3. 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

4. Cell Types 1. Eukaryotes Animal Plants Protists Fungus 2. Prokaryotes
Archaobacteria
Eubacteria
Introduction to Cells: The Grand Cell Tour Amoeba Sisters 4

5. 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

6. 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

7. 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.

8. Go to Cells alive (size & interactive cell models)
(organelles)
CELLS Alive!
Go to Cells alive (size & interactive cell models)

9. Specialized Cells: Significance and Examples Amoeba Sisters