1. Levels of Organization in the Human Body Directions: Take notes in your science notebook

2. Levels of Organization in the Human Body
Directions: Take notes in your science notebook
Be prepared to share out loud –
Checking for your understanding questions.

3. Levels of Organization Chemical
Atoms
made up of subatomic particles
Molecules
2 or more atoms
Macromolecules
small molecules joined together

4. Levels of Organization Cellular
Macromolecules combine to form cells
Basic structural and functional unit of the body 4

5. Levels of Organization Tissue
Group of cells working together to perform a function
4 basic types
Epithelial
Connective tissue
Muscle
Nerve 5

6. Levels of Organization Organ
2 or more tissues joined together with a specific function and shape 6

7. Levels of Organization Organ Systems
Related organs with a common function
12 body systems 7

8. Checking for Understanding #1
A is two or more atoms joined together.

9. Checking for Understanding #2
A is a group of cells working together to perform a function.

10. Checking for Understanding #3
The stomach, small intestine and large intestine work together to form an 10