1. Organization of Living Things
SC.6.L.14.1 Describe and identify patterns in the hierarchical organization of organisms from atoms to molecules and cells to tissues to organs to organ systems to organisms.
ESSENTIAL QUESTION:
How do the different levels of body organization work together so your body can function?

2. Bell Ringer
There are levels of cellular organization within multicellular organisms. Which of the following statements is true?
Tissues are made up of organs.
Organs are made up of organisms.
Cells are made up of organ systems.
Organ systems are made up of organs.

3. I Do Guided Notes

4. Body Organization
Atoms→ Molecules→ Cells→ Tissue→ Organ→ Organ System→ Organism *Not Living
Atoms are the basic unit of all matter (living or not).
Cells are the basic unit of all living things.

5. Many cells that together perform a function is a tissue.
Cells Form Tissues
Many cells that together perform a function is a tissue.
There are four types of tissues:
Connective (holds organs together)
Epithelial (the lining of organs/skin)
Muscular (used to move)
Nervous (Sends messages to/from brain)

7. Tissues Form Organs
Two or more tissues working together form an organ
Example: Your heart is an organ that uses all types of tissue (epithelial, muscular, nervous and connective) to pump blood.

8. Organs Form Systems Organs working together make up organ systems
There are 9 major organ systems in your standard:

9. Body Systems Assessed:
Skeletal
Respiratory
Excretory
Immune
Reproductive
Nervous
Circulatory
Digestive
Muscular

10. Body Systems Make Up Organisms
All of your body systems work together in order to maintain homeostasis.
Homeostasis is a state of balance between all body functions.
Regulating body temperature (98.6°F)
Getting rid of water and waste

11. We Do- guided practice
Patterns of Organization: Let’s arrange the following list in hierarchical order. Start with atoms and move up to organisms. Root Atoms Root system Molecules Tree Root cells
Atoms
Molecules
Root Cells
Root
Root System
Tree

12. We Do Collaborative Activity

13. Revisiting the Bell Ringer
There are levels of cellular organization within multicellular organisms. Which of the following statements is true?
Tissues are made up of organs.
Organs are made up of organisms.
Cells are made up of organ systems.
Organ systems are made up of organs.*

14. You do time!

15. You Do Question #1
The body of a person or other mammal is a complex organism. The structure of the body has several levels of organization. Which of the following lists the structural levels of the body from smallest to largest?
cell  tissue  organ  organ system  organism
cell  organ  organ system  tissue  organism
organ  organ system  cell  tissue  organism
organ  organ system  tissue  cell  organism
Correct Answer: A

16. You Do Question #2
Atoms combine to form molecules. Which of the following is another example of organization among living things?
Tissues combine to form cells.
Cells combine to form tissues.
Organs combine to form cells.
Organs combine to form tissues.
Correct Answer: B

17. You Do Question #3
The diagram below represents the organizational levels of living things.
Which of the following examples represents
an example of the missing organizational level?
Blood
Heart
Plasma
Vein
Correct Answer: B

18. Exit Ticket (Closing)
How do the different levels of body organization work together so your body can function?
(Answer on your notes sheet)