Unit Overview:
Chapter 1 – Structure of Living Things
•Lesson 1 – Cells
•Lesson 2 – From Cells to Organisms
•Lesson 3 – Diversity of Organisms
Chapter 2 – Plant Structures and Functions
•Lesson 1 – Vascular Plants
•Lesson 2 – Plant Transport Systems
•Lesson 3 – Photosynthesis and Respiration
Chapter 3 – Human Body Systems
•Lesson 1 – The Human Body
•Lesson 2 – The Digestive System
•Lesson 3 The Respiratory System
•Lesson 4 – The Circulatory System
•Lesson 5 – The Excretory System

Lesson Overview:
1) What do we already know?
2) Vocabulary
3) Drawings
4) Main Ideas
5) Review
Structure of Living Things: Lesson 2

Cells to Organisms:
What do we already know?
1) What do you know about plant and animal cells?
• Trillions of cells in your body
• Each has different organelles
• All cells have a nucleus
• How are plant and animal cells different or the same?
• Animal cells flex and plant cells are firm
• Plant cells have chloroplasts
1) Do you think all animals have the same cells?
• I’m not sure
Structure of Living Things: Lesson 2

1) Unicellular: Made up of only one cell
2) Organism: An individual living thing
3) Multicellular: Made up of more than one cell
4) Tissue: A group of similar cells that work together to do the same jobs.
5) Organ: A group of tissues that work together to perform a specific bodily function
Structure of Living Things: Lesson 2

6) Organ System: A group of organs that work together to perform a specific bodily function
Structure of Living Things: Lesson 2

Cells to Organisms: Drawings
(pg. 40)
Structure of Living Things: Lesson 2

Cells to Organisms: Main Ideas
1) How are living things organized?

1) (See drawing on previous slide)
 Quick Check
-Compare and Contrast: What activities are common to all living things?

All living things have cells, die, breath, grow, eat and excrete.
Structure of Living Things: Lesson 2

Cells to Organisms: Main Ideas
1) How do cells work together?
– They work together to perform the same task for the body.
– Tasks such as: The stomach digests food, The stem soaks up water.
 Quick Check
-Compare and contrast: How do organs compare to organ systems?
An organ system is made up of organs.
Structure of Living Things: Lesson 2

Cells to Organisms: Main Ideas
3) What are some plant and animal organ systems?
Plant: Root system and shoot system
Animal: Digestive system
 Quick Check
-Can an organ be part of two organ systems?
Yes, the salamander's skin is a part of 2 systems.
Structure of Living Things: Lesson 2

1) Summarize the main ideas
2) Think, Talk, and Write
Structure of Living Things: Lesson 2