1. From Molecules to Organisms: Structure & Processes
What is Life?
Credit: Rebecca Rehder Wingerden

2. What is Life? Structure – is the physical appearance (anatomy)
What is a function of the plant leaf?
What is the function
of the human eye?
What structures allow the leaf to performs its function?
What structures allow the human eye to perform its function?
Structure – is the physical appearance (anatomy)
Function – is what the structure does (physiology)

3. The external and internal structures of organisms enables life’s functions: growth, behavior, survival and reproduction.
Labrador Retrievers: The tail and coat are designated distinctive features of the Labrador. The coat should be short and dense, but not wiry. The coat is also water-resistant and comes in three colors: black, yellow, and chocolate. The true Labrador Retriever temperament is as much a hallmark of the breed as the ‘otter’ tail. The Labrador’s temperament is described as kind, pleasant, and outgoing which make them a very even-tempered breed and an excellent family dog.

4. A life is made of cells and all life can be divided into two categories of cell type: Prokaryotes and Eukaryotes.
Cell
Basic Unit of Life
Prokaryotes
• genetic material NOT contained in a
nucleus!
• relatively smaller & simpler in structure!
• Examples: Archaea & Bacteria
Eukaryotes
• genetic material contain in nucleus!
• relatively larger & more complex!
• Examples: Plant, Animal, Fungi &
Protozoa

5. All living organisms (unicellular & multicellular) need to respond to their environment, find food, get water and disposal of waste.

6. All cells have similar structures and those structures have similar functions: cell membrane & genetic information.

7. Levels of organization in multicellular life: cells, tissue, organs, organ systems, then organisms.
Biological function starts at the chemical level.
96% of the human body is made of:
- oxygen (O)
- carbon (C)
- hydrogen (H)
- nitrogen (N)

8. What is Life?
Living things. …are cellular

9. What is Life?
Living things…reproduce.

10. What is Life?
Living things…have DNA (universal genetic code)

11. What is Life?
Living things…grow and develop.

12. What is Life?
Living things … obtain and use energy.

13. What is Life?
Living things … respond to their environment.

14. What is Life? Living things … maintain a stable internal environment.
Living things … taken as a group, will change over time.