Transcript
Two stages of photosynthesis
• Capturing the sun’s energy• Using energy to make food
1st Stage of Photosynthesis•Chlorophyll and other pigments Capture energy from sunlight during photosynthesis
Chlorophyll•makes plants appear green
2nd Stage of Photosynthesis
•The cell uses the energy from sunlight to make food from the raw materials
Carbon Dioxide and Water
•Are the raw materials of photosynthesis
Stomata•An opening in the plant where carbon dioxide enters the plant and oxygen leaves
Oxygen and sugars •Are the products, what plants produce, during photosynthesis
Photosynthesis benefits heterotrophs
•By creating food to eat and adding oxygen to the atmosphere
AutotrophAn organism that makes its own food, like plants
Heterotroph•An organism that does not produce its own food internally
Photosynthesis Equation
• 6CO2 + 6H2O + Energy C6H12O6 + 6O2
• Carbon Dioxide + Water + Energy from the sun
sugar (glucose) + oxygen
What does the plant do with the sugar it makes
• Uses it for food (Breaks down the sugar to release the energy it contains)
• Converts food into cellulose• Stores food for later plant use• When you eat plants you are eating the stored
food
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