1. Bell Ringer 10/17/11 Your parents are giving you $100 for your birthday. Would you rather receive the money in one $100 bill or 100 $1 bills? Why? What are the advantages and disadvantages for each option?

2. All Living Things Require Energy

3. Where do living things get energy? Heterotrophs Autotrophs Does food give you energy?

4. The Answer? Yes and No Yes-The food we eat has potential energy stored in the form of sugar and other carbon-based molecules that we need to survive. No-The energy stored within food is not in a type of energy that our cells can use. What is the energy cells use?

5. ATP All cells use ATP for energy. Helps cells build molecules and move materials ATP is like Cells can “spend” ATP, but they have to work to make more ATP so they don’t run out.

6. How do cells use ATP?

7. How do cells get ATP? Food does not contain ATP Plants and Animals perform Cellular Respiration to convert the energy in food to ATP. Amount of ATP that can be made depends on the type of molecule Glucose yields about 36 ATP molecules A Triglyceride can yield up to 146 molecules of ATP

8. Before you go… Food Proteins Contains Like Whose energy is converted into By cells.