1. Chapter 4
Cell Activities

2. Chapter 4A
Order Among Cells

3. I. Order Among Cells
Multicellular organisms have different kinds of cells which perform a variety of functions.
Each cell is unable to survive on its own.

4. I. Order Among Cells Unicellular organisms can survive by themselves.
Each cell has the ability to perform ALL functions necessary for life.

5. I. Order Among Cells
Colonial organisms have many cells that usually live together but are able to live independently.
Each cell has the ability to perform ALL functions necessary for life.

6. A. Levels of Cellular Organization
I. Order Among Cells
A. Levels of Cellular Organization

7. A. Levels of Cellular Organization
1. Tissue

8. Tissue
A group of similar cells that works together to perform a particular function

9. A. Levels of Cellular Organization
Tissue
Organ

10. Organ
A group of tissues that works together to accomplish a particular function

11. A. Levels of Cellular Organization
Tissue
Organ
Organ System

12. Organ System
A group of organs that work together to perform a life function

13. A. Levels of Cellular Organization

14. A. Levels of Cellular Organization

15. B. Division of Labor
Each tissue and each organ performs its special function to keep the whole organism alive.
Each tissue and organ depends on the others in the organism
This is also true of the body of Christ (1 Corinthians 12)