Biology · BIOLOGICAL CLASSIFICATION

Chemosynthetic autotrophic bacteria play a crucial role in nutrient recycling in ecosystems. What is the exact energy source they utilize for ATP production?

1. A
   Direct sunlight trapped by bacteriochlorophyll pigments
2. B
   Energy released from oxidation of inorganic substances like nitrates, nitrites, and ammonia
3. C
   Anaerobic fermentation of starch into lactic acid
4. D
   Organic compounds absorbed from decaying substrates