1. Warm up – You are what you eat!
With your elbow partner, talk about the information on this nutrition label.
What does all of this information mean?
How would this food (a potato) benefit the consumer?
All living things break down food to get the nutrients in it.

2. Chemistry of Life All matter (living & nonliving) is made of elements.
The basic unit of an element is the atom.
Elements found in living things include (CHNOPS):
Carbon
Hydrogen
Nitrogen
Oxygen
Phosphorus
Sulphur

4. What do elements have to do with cells?
Elements combine to form compounds.
The basic unit is the molecule.

5. The Compounds of Life
Living things are made of organic & inorganic compounds.
Organic:
Proteins
Carbohydrates
Lipids (fats)
Nucleic acids
Inorganic: - usually do NOT contain carbon
Carbon dioxide – CO2 (exception to the rule!)
Water – H2O
Salt - NaCl
All contain CARBON …
Living things are carbon-based

6. So…
The basic unit of matter is an ATOM, but the basic unit of life is the CELL.

7. Organic Compounds (contain CARBON!)
Foldable:
Proteins
Carbohydrates
Lipids & ATP
Nucleic Acids
Organic Compounds (contain CARBON!)

8. Proteins Almost all life processes of a cell involve proteins.
Proteins are large molecules made of smaller molecules called amino acids.
Organisms break down proteins in food to supply cells with amino acids.
Functions:
Building structures (ex: hair, feathers)
Help cells do their job
Ex: carry oxygen in blood cells
Enzymes – type of protein that speed up chemical reactions in living things.
Ex: saliva
Foods high in protein:
Meat, eggs, fish, nuts & beans

9. Carbohydrates Molecules made of sugars Function: 2 types: Food:
Source of energy
Energy storage
2 types:
Simple carbs – made of one sugar molecule
Ex: table sugar, sugar in fruits
Complex carbs – hundreds of sugar molecules; can be stored
Ex: potatoes, grains
Food:
Fruits & veggies & grains

10. Lipids Lipids cannot mix with water. Function:
1. Fats & Oils – store energy
2. Phospholipids – form the cell membrane

11. ATP Adenosine triphosphate Function:
Major energy carrying molecule in the cell
The energy in carbohydrates and lipids must be transferred to ATP, which then provides fuel for cellular activities.

12. Nucleic acids Sometimes called the blueprints of life.
Contain the instructions that cells need to carry out life functions.
Made of sub-units called nucleotides.
Help a cell to make proteins
Ex: DNA

13. “3-2-1” Ticket-Out-the-Door
List 3 characteristics that all living things share
List 2 needs of all living things
Explain the function of 1 organic compound that all living things need.

14. Warm Up: Example: Dogs are canines. Obedient Great Companions
Create an acrostic that describes the characteristics and needs of living things: L I V N G T H S
Example:
Dogs are canines.
Obedient
Great Companions
St. Bernard

15. Review of Chemistry of Living Things
Word Sort activity