Question

1. 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? explain your answer.

Explanation:

Positive feedback amplifies a process. Here, mitochondria generate ROSs. ROSs damage mitochondria. Damaged mitochondria generate more ROSs. This cycle amplifies the production of ROSs, which is characteristic of positive feedback. Negative feedback would counteract a process (e.g., if ROS production led to a mechanism that reduced ROS production).

Answer:

This is an example of positive feedback.