Body Organization
A. Levels of Organization of Human Body (pp. 6 – 7)
1. As we go through the lesson, make an outline about body organization.
In the table below use the red headings for the main ideas and blue headings for supporting
ideas. Also number the levels of organizations as Level 1, 2, … etc.
Level 1. Cells
a. _______
b.
Level 2. ______________
a. _______
2. List the levels of organization and put them in order of smallest to biggest.
a. ______________________
b. ______________________
c. ______________________
d. ______________________
e. ______________________
3. What is the smallest unit of body organization? _________________________
4. What is the largest unit of organization? _________________________
5. A fly falls under, which level of organization?
a. Organ
b. Organ System
c. Organism
d. Tissue
6. An eye falls under, which level of organization?
a. Organ
b. Organ System
c. Organism
d. Tissue
B. Cells (pp. 7)
7. Cell is defined as the
___________________________________________________________________________
8. Circle the letter of the outside boundary of an animal cell.
a.
b.
c.
d.
Cytoplasm
Nucleus
Tissue
Cell Membrane
9. The control center that directs the cell’s activities and contains information that determines
the cell’s form and function is the _________________________
10. What is cytoplasm?
___________________________________________________________________________
11. Is the following statement true or false? Cells carry on the processes that keep the organism
alive. _________________________
C. Tissues (pp. 8)
12. What is the next level of organization after cells? _________________________
13. Define Tissues. _________________________
14. How many types of tissues are there? _________________________
15. Draw the tissues and label the names.
Tissue: _________________________
Tissue: _________________________
Tissue: _________________________
Tissue: _________________________
16. Complete the table to show functions and examples of the tissues in the human body.
Tissue
Function
_Muscle___________
__________________
__________________
__________________
__________________
Examples
D. Organs and Organ Systems (pp. 8 - 9)
17. A structure that is made up of different kinds of tissues is a(n) ___________
18. Circle the letter of unit of organization that represents an organ.
a. Nerve cells
b. Blood
c. Lungs
d. Digestive System
19. Is the following true or false? An Organ has a specific job that is more complex than that of
a tissue. _________________________
20. What is an organ system?
___________________________________________________________________________
___________________________________________________________________________
21. Match the organ system and its function.
Organ System
1.
2.
3.
4.
5.
6.
Endocrine
Circulatory
Excretory
Respiratory
Digestive
Skeletal
Function
Takes oxygen into the body
Supports and protects the body
Controls body process by means of chemicals
Takes food into the body and breaks it down
Removes waste
Transports materials to and from body cells
22. How many organ systems are there in our body? _________________________