Levels of Structural Organization

What are the levels of structural organization?
- chemical
- cellular
- tissue
- organ
- system
- organism
Chemical Level

substances needed to maintain life
What does the chemical level include?

atoms and molecules
Atoms

smallest units of matter

(ex: carbon, oxygen)
Molecules

two or more atoms joined together
Cellular Level

basic structure and functional living units of an organism

(organelles)
Organelles

"organs" of a cell designed to do specific tasks
Tissue Level

group of similar cells that perform specialized functions

(4 types)
What are the four basic types of tissue?
- epithelial
- muscle
- connective
- nervous
Organ Level

structures that are composed of 2 or more different tissues with specific functions
System Level

consists of related organs with a common function
Organism Level

all systems working together to form one living person

Author

bhianneangeli

31040

Card Set

Levels of Structural Organization

Description

slide 2 of chapter 1

Updated

2010-08-24T08:22:57Z

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