1. Unity and Diversity of Life
What characteristics do living creatures have in common?

2. Living creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as…
molecules
proteins, fats, carbohydrates, nucleic acids
carbohydrates
proteins
DNA

3. Living creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as…
organelles & cells
plant cells & animal cells
plant cell
animal cell

4. Living creatures are ORGANIZED
All made of the same collection of chemicals, but we are organized as…
Tissues & organs & organ systems
respiratory, circulatory, digestive, etc.

5. Living creatures RESPOND
Respond to internal changes
Homeostasis
maintaining balanced conditions inside the body
Respond to external changes

6. Living creatures use ENERGY
Metabolism
all the reactions your body performs to make & use energy
eating & digestion & elimination of waste
synthesis = building reactions
cellular respiration = making energy
mitochondria

7. Living creatures GROW & DEVELOP
Change over an individual’s life time
get bigger
mature
so they can reproduce

8. Living creatures REPRODUCE
Make the next generation

9. Living creatures perform Life Processes
We can organize the life processes using a pneumonic device. Huh? T-Transport (move materials in a body/cell) R-Respiration (Transforming food into Energy) R-Regulation (Maintain internal balance-Homeostasis) R-Reproduction (Make more cells/organisms) N-Nutrition (Obtaining food) E-Excretion (To remove metabolic waste) S-Synthesis (to make complex from simple) G-Growth (To get larger)

10. Don’t be a Dodo… Ask Questions!!

11. Essential Characteristics Conserved

12. Genetic Code

13. Central Dogma
Watson
Crick

14. Metabolism Glycolysis Krebs Cycle Oxidative Phosphorylation
Anaerobic Respiration
Aerobic Respiration

15. Eukaryotes