1. ATP Energy and Photosynthesis Overview

2. Energy and Life  All cells need ENERGY for life.  Some things we use energy for are:  Moving  Thinking  Sleeping  Breathing  Growing  Reproducing

3. Energy and Life  The principle chemical compound used by living things to store energy is adenosine triphosphate ( ATP ).

4. Energy and Life  It consists of three parts: Adenine, Ribose, and 3 Phosphate Groups ADENINE RIBOSE 3 Phosphates

5. Online Activity  What is ATP used for?  Flower  Firefly  Lizard

6. Energy Storage and Energy Release ADPATP

7. Energy Storage & Release A. ATP is used for: active transport, movement of cell organelles, and other functions (mitosis) B. Glucose: sugar molecule stores 90 times more energy than ATP. Regenerates ATP.

8. Online Activity Sugar burned in fire Both have in common Sugar burned in body Released Energy as light and heat quickly. - Need oxygen and glucose. - CO2 & H2O produced - Heat produced (release energy) Converted to chemical energy of ATP & some heat.

9. Why do we use ATP?  Why not just get energy from sugar (glucose) directly? ATP consists of small units of energy. If you burn all at once – spontaneous combustion!

10. Why do we use ATP?  Analogy: Powerlines = sugar, Wall socket = ATP (small units of energy)

11. Follow-up Questions  What is the role of ATP in a cell?  How do autotrophs obtain energy?  How do heterotrophs obtain energy?  What are the similarities and differences between ATP and Glucose?

12. Photosynthesis Overview  Process by which plants use water, CO 2, and energy from sunlight to make sugar and O 2.  Chloroplasts are organelles that do photosynthesis.

13. Photosynthesis Overview 6CO 2 + 6H 2 O  C 6 H 12 O 6 + 6O 2

14. Chloroplast Water O2O2 Sugars CO 2 Light- Dependent Reactions Calvin Cycle NADPH ATP ADP + P NADP + Chloroplast

15. In the photosynthesis light reaction: 1. What is water needed for? 2. What product is released at the end of the light reaction? 3. What two high energy molecules are produced by the light reaction? Used in the reaction when sunlight is present Oxygen ATP & NADPH

16. In photosynthesis the Calvin Cycle: 4. What is carbon dioxide needed for? 5. What product is made at the end of the Calvin Cycle? 6. What two low energy molecules are produced by the light reaction? Provides carbon to make sugar (C 6 H 12 O 6 ) Sugar – glucose (C 6 H 12 O 6 ) ADP & P, NADP+

17. During Photosynthesis: 7. What part of the chloroplast does the light reaction take place in? 8. What part of the chloroplast does the Calvin Cycle take place in? 9. Which part of photosynthesis requires energy from the sun? 10. Which part of photosynthesis uses ATP to make energy? What kind of energy is made using the energy from ATP? Thylakoid membrane Stroma Light reaction Calvin Cycle Sugar