Presentation is loading. Please wait.

Presentation is loading. Please wait.

What are living creatures made of? Why do we have to eat?

Similar presentations


Presentation on theme: "What are living creatures made of? Why do we have to eat?"— Presentation transcript:

1 What are living creatures made of? Why do we have to eat?
The Chemistry of Life What are living creatures made of? Why do we have to eat?

2 Elements of Life 96% of living organisms is made of: Carbon (C)
Hydrogen (H) Nitrogen (N) Oxygen (O) Phosphorous (P) Sulfur (S) CHNOPS!!

3 Molecules of Life Put C, H, N, O, P, S together in different ways to build living organisms What are bodies made of? carbohydrates proteins lipids nucleic acids

4 ATP Why do we eat? We eat to take in more of these chemicals
Food for building materials to make more of us (cells) for growth for repair Food to make energy calories to make ATP ATP

5 Don’t forget water Water Rest of you is made of carbon molecules
65% of your body is H2O water is inorganic doesn’t contain carbon Rest of you is made of carbon molecules organic molecules carbohydrates proteins fats nucleic acids

6 How do we make these molecules?
We build them!

7 Building large molecules of life
Chain together smaller molecules Carbon can bond together in rings or chains building block molecules = monomers Big molecules built from little molecules polymers

8 Building large organic molecules
Small molecules = building blocks = monomers Bond them together = polymers

9 Building important polymers
Carbohydrates = built from sugars sugar – sugar – sugar – sugar – sugar – sugar Proteins = built from amino acids amino acid Nucleic acids (DNA) = built from nucleotides nucleotide – nucleotide – nucleotide – nucleotide

10 How to build large molecules
Synthesis building bigger molecules from smaller molecules building cells & bodies repair growth reproduction + ATP

11 How to take large molecules apart
Digestion taking big molecules apart getting raw materials for synthesis & growth making energy (ATP) for synthesis, growth & everyday functions + ATP

12 Example of digestion starch glucose Starch is digested to glucose ATP

13 amino acids = building block
Example of synthesis amino acids protein Proteins are synthesized by bonding amino acids amino acids = building block protein = polymer

14 Any Questions? Penguins gone bad!


Download ppt "What are living creatures made of? Why do we have to eat?"

Similar presentations


Ads by Google