Metabolic Classification of Bacteria

Bacterial cells are incredibly diverse and can adapt to various environments. One essential factor for bacterial survival is their ability to utilize different energy sources. For instance, some bacteria are classified as autotrophs, which can produce their own energy through processes such as photosynthesis or chemosynthesis. In contrast, heterotrophic bacteria rely on organic compounds from their environment for energy. Understanding these metabolic pathways is fundamental in microbiology, especially in fields like biotechnology and ecology.

Consider the different ways bacteria can be categorized based on their metabolic capabilities. Which statement best describes the relationship between bacteria and their energy sources?