3Photosynthesis Vocabulary Photosynthesis- A process by which plants convert sunlight, water, and carbon dioxide into food energy (sugar), oxygen and water.Chloroplast- An elongated cell organelle containing chlorophyll where photosynthesis takes place.Chlorophyll- A green molecule which uses light energy from sunlight to change water and carbon dioxide gas into sugar and oxygen
10Respiration Vocabulary Respiration- The process by which the chemical energy of "food" molecules is released and changed into ATP.Mitochondria- Rod-shaped organelles with a double membrane which converts the energy stored in glucose into ATP for the cell.
11Do you notice something about this equation? Respiration EquationO2 + glucose H20 + CO2 + ATPReactantsProductsDo you notice something about this equation?
12Animals & Plants Rely On Each Other Animals use:Sugar (from producers/plants)Oxygen (from producers/plants)Plants use:Carbon dioxide (from animals)
13The mitochondria change the O2 and sugars (food)
15What about light & ATP? Comparing Equations Photosynthesis Equation: H2O + CO2 + light O2 + glucoseRespiration Equation:O2 + glucose H2O + CO2 + ATPWhat about light & ATP?
16Conservation of Energy The Law of Conservation of Energy says…1.) Energy cannot be created2.) Energy cannot be destroyedTherefore…energy can only be transformed into other types of energy.
17WhAt’S hApPeNiNg To ThE eNeRgY?? In photosynthesis:Electromagnetic energy (sun) Chemical Energy (sugar)In respiration:Chemical energy (sugar) Different type of Chem. Energy (ATP)
18We will visit ATP again in a few weeks during our CELL UNIT! So…WHAT IS ATP?ATP- Adenosine triphosphateA high energy molecule that serves as the energy currency of the cellWe will visit ATP again in a few weeks during our CELL UNIT!ATP