I want to know the answer to the following question:
How does heterotrophic carbon metabolism occur?
All the background I'm provided with is that "Energy metabolism of bacteria is either based on phototrophy, the use of light through photosynthesis, or based on chemotrophy, the use of chemical substances for energy, which are mostly oxidised at the expense of oxygen or alternative electron acceptors (aerobic/anaerobic respiration).". Is that enough to answer the question?
Answer: no