Carbon Cycle

• element
• found in all organisms=organic material
• found in proteins, lipids, carbohydrates, and vitamins=organic compounds
• CO₂ is not an organic substance

Carbon Dioxide + Water --> Sunlight + Chlorophyll --> Glucose + Oxygen

6CO₂ + 6H₂O -> Sunlight+Chlorophyll -> C₆H₁₂O₆ + 6O₂

Food/Chemical energy

Autotrophs/Producers

Nutrition

break down of glucose to release energy

oxygen + glucose --> carbon dioxide + water + energy

6O₂ + C₆H₁₂O₆ --> 6CO₂ +6H₂O + energy

dead organic matter is broken down by organisms called decomposers (bacteria + fungi)

By the decomposers in the process of respiration.

dead organic matter can't decompose (lack of O₂) over millions of years it forms into fossil fuels (oil, coal, gas)

burning of fossil fuels

Carbon

(fossil) fuel + oxygen --> carbon dioxide + water + energy

taking in food (containing C = glucose, sucrose, carbohydrates, fats, proteins)

• living/dead organisms
• contains carbon