2.2 Cellular Energy

Warm-up Essential Question What biomolecules contain energy? How do cells make, move, and use energy?

ENERGY! All living things need to energy to survive Starts from the sun (most of the time) Plants use that to make sugars (for themselves), everything else eats the plants and steals their sugars, or eats something that ate the plants

Photosynthesis – step one Converting light energy into chemical energy Reactants: CO2 and H2O Plants, algae, and a few bacteria The goal is storage to use that energy later All this is in the chloroplasts

Cellular Respiration – step two The inverse of photosynthesis Mitochondria (only in Eukaryotes) Converts the chemical energy stored in glucose into an energy usable by the cell (ATP) Plants AND animals

ATP- Adenosine Triphosphate The main energy carrying molecule in living things Glucose is broken apart, releasing the energy which is then stored in ATP ATP transports energy around the cell When it is used, it is broken apart into ADP + P (adenosine diphosphate + phosphate) The energy had been stored in the chemical bond The particles are recycled and made back into ATP in the mitochondria

Aerobic and anerobic