1. What are living creatures made of?
The Chemistry of Life
What are living creatures made of?

2. ATOMS Basic building blocks of matter
Made up of protons (+), neutrons (0), and electrons (-)

3. Elements of Life CHNOPS 96% of living organisms is made of: carbon (C)
oxygen (O)
hydrogen (H)
nitrogen (N)
Phosphorous (P)
Sulfur (S)
CHNOPS

4. Molecules of Life – 4 Major Organic Compounds
Put C, H, O, N together in different ways to build living organisms
What are bodies made of?
carbohydrates
sugars & starches
proteins
Lipids (fats, oils, waxes)
nucleic acids
DNA, RNA

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
building block molecules = monomers
Big molecules built from little molecules
polymers

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

9. ** Proteins and Nucleic Acids have elements in addition to C, H, and O

10. Building important polymers
Carbohydrates = built from
sugars
(monosaccharides  disaccharide (2 sugars)polysaccharide (many sugars))
sugar – sugar – sugar – sugar – sugar – sugar
Proteins = built from amino acids
amino
acid –
Peptide Bond
Nucleic acids (DNA) = built from nucleotides
nucleotide – nucleotide – nucleotide – nucleotide

11. Lipid (fats, oils, waxes)
MONOMER (SUBUNIT)
GLYCEROL
and
FATTY ACIDS
(Can often look
like a letter E)
Double bond

12. LIPID
GLYCEROL
FATTY ACIDS

13. Open Notebook Quiz Is water organic or inorganic? Why?
What are the 4 major organic compounds necessary for life?
What does CHNOPS stand for?
What are the main parts of an atom?
What charges do each of them hold?
What does the word “monomer” mean?
What does the word “polymer” mean?
What are the 3 elements that make up carbohydrates and lipids?
What elements make up proteins?
What are the monomers (subunits) for lipids?