Question

Mitochondria, the organelles involved in cellular respiration, can also generate chemicals called reactive oxygen species (ROSs). ROSs can damage mitochondria. Damaged mitochondria generate more ROSs than healthy mitochondria. Is this an example of negative or positive feedback?

Answer 1

The situation described where damaged mitochondria create more ROSs, leading to further damage, is an example of positive feedback.

Step-by-step explanation:

When damaged mitochondria generate more reactive oxygen species (ROSs) than healthy mitochondria, which in turn can cause further damage to mitochondria, this is an example of positive feedback. This is because the initial problem leads to an increased occurrence of the same problem, creating a vicious cycle that exacerbates the situation. Instead of stabilizing the system, it amplifies the damage.