In an ecosystem, producers are the first level of the food chain. And we know that plants are producers because they produce their own food. So, fruit trees will be at the beginning of the food chain. After producers comes the primary consumers. Primary consumers are animals that feed on producers. Both birds and monkeys feed on fruit trees, so they are the next in line after fruit trees. Finally, secondary consumers eat primary consumers. As tigers eat animals i.e monkeys etc so they are secondary consumers, and thus they are last on the food chain list.
Every ecosystem has a food chain and the food chain starts with producers( that can make food), consumers( that feed on the food made by producers) and decomposers( recycle the nutrients back into the soil).
Here, the food chain list will be-
Fruit trees( producers)→ birds/monkeys( primary consumers)→tiger ( secondary consumers)
This list consists of producers, consumers (primary and secondary) which is an essential component of ecosystem.
Oxidation of pyruvate to acetyl-CoA does not generate energy and glycolysis generates only 2 ATP (2 ATP used and 4 ATP generated). On the contrary TCA generates as much 38 ATP.
