1. Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP

2. Chemical Energy and ATP Presentation
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
Agenda:
Do Now!
Inquiry Activity
ATP Modeling Lab
Chemical Energy and ATP Presentation

3. How do we go from this: To this? Energy from Food
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
How do we go from this:
To this?
Energy from Food

4. Does food give you energy?
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
Does food give you energy?
Our bodies only get energy from food after the food is broken down.
This is a chemical process, breaking down food molecules and releasing the energy in their bonds.
Burning Marshmallow (YouTube Link)

5. Does food give you energy?
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
Does food give you energy?
Almost all life on Earth depends on breaking down carbon-based molecules for food.
The most important energy giving molecules are:
Carbohydrates
Lipids
Proteins

6. ATP = “adenosine triphosphate” “adenine” “ribose” “tri-phospate”
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
In order to use the energy contained in food, our body converts the energy and stores it in ATP.
ATP = “adenosine triphosphate”
“adenine”
“ribose”
“tri-phospate”
ATP

7. Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP

8. Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
By breaking the high-energy bond of the third phosphate, ATP is able to transfer energy to the machines of the cell
If the third phosphate is removed, ATP becomes ADP (adenosine diphosphate)
By breaking and reforming the third bond, the same ATP molecules are used and re-used over and over.
ATP

9. Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
ATP-ADP Cycle

10. Where might molecules from food be involved?
Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
Where might molecules from food be involved?

11. Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP

12. Chapter 4: Cells and Energy
Section 1: Chemical Energy and ATP
ATP: What it is and How it works (YouTube Link)