Heterotrophs and Autotrophs

• Heterotrophs eat other organisms for energy.
• There are two types of autotrophs, photoautotrophs and chemoautotrophs.
• Photoautotrophs: organisms that obtain energy from sunlight to create their own organic compounds.
• Chemoautotrophs: obtain energy from oxidation of chemicals (like H2S) to make their own sugars.
• Chemoautotrophs Equation: 6CO2 + 18H2S + 3O2 -> C6H12O6 + 18S + 12H2O
• Autotrophic Organisms take in inorganic materials (CO2 and H2O) and convert them into organic nutrients (Glucose)
• Autotrophs conduct photosynthesis.
• Some autotrophic organisms are plant, algae, and some bacteria.
• Chemoautotrophs - found from 'hot spots' under the ocean which was filled with life and did not require sunlight for photosynthesis.