Final answer:
Oil is not used for light in the plant kingdom but is produced and stored by algae, which can be used for biofuel. Algae ponds near power plants can serve as carbon neutral power sources, utilizing CO2 for growth. Oil is extracted from internal oil bodies in algae cells, offering a sustainable energy solution.
Step-by-step explanation:
The use of oil for light in the plant kingdom is not a process that occurs naturally. Plants use photosynthesis to capture, store, and use energy. In photosynthesis, light energy is trapped and stored as chemical energy in carbohydrates during the Calvin cycle. The concept of using oil for light typically pertains to human applications, such as burning oils for illumination or energy production. However, in the context of bioenergy, algae are an organism within the plant kingdom that can produce and store oil.
Algae ponds next to power plants can be beneficial as they can use carbon dioxide emitted from power plants to grow, essentially acting as a carbon neutral power source. The carbon absorbed by the algae offsets the carbon emitted when the algae oil is burned, which can be extracted and converted into biofuel. Additionally, algae have the potential to produce more oil per acre than traditional crops used for biofuel.
In the algae cell, oil is stored inside oil bodies or lipid droplets, which serves as an energy reserve. The process of extracting oil from algae involves cultivation, harvesting, and processing, which can include mechanical or chemical extraction methods. All of these components make algae a sustainable and environmental-friendly option for producing biofuel, which in turn can contribute to increasing human carrying capacity on Earth by providing an alternative energy source.