Photosynthesis & Respiration I). Photosynthesis and Respiration A). Photosynthesis 1). Is a chemical reaction that uses energy from the sun, carbon dioxide from the atmosphere and water to create sugars for energy for themselves and animals that eat the sugars and oxygen. 2). Chemical Reaction for Photosynthesis: 6CO 2 + 6H 2 O Light C 6 H 12 O 6 + 6O 2 Carbon Dioxide water Sugars Oxygen

C). Photosynthesis occurs in the chloroplasts of plants. 1). Chloroplasts have two important structures: a). Thylakoids: Photosynthetic sacs that make up the membrane that surrounds the chloroplast. b). Stroma: The fliud portion of the chloroplast outside of the thylakoids.

B). Respiration 1). Is a chemical reaction that uses sugars created by plants during photosynthesis, and oxygen to release energy, water and carbon dioxide. 2). Chemical Reaction for Respiration: 6O 2 + C 6 H 12 O 6 6CO 2 + 6H 2 O + Energy Oxygen Glucose (Sugar)Carbon DioxideWater II). The Relationship between Photosynthesis and Respiration. A). Photosynthesis and respiration are basically the opposte of each other. B). Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere and cellular respiration uses that oxygen to release enrgy from food.