"

Chapter 11 – Energy Stress

Introduction

image
Figure 11.1 Some environments can cause energy stress. For example, this cold mountain-top environment likely doesn’t have much food available for animals that live there, limiting production of ATP and causing energy limitation stress (credit: Amandasofiarana, CC BY 4.0, via Wikimedia Commons).

Normal cellular processes and functions are largely dependent on energy in the form of ATP. However, cells sometimes have too much ATP (energy excess) or too little ATP (energy limitation), which can result in energy stress. Energy stress can be induced by changes in a cell’s activity or environment. For example, frozen environments can be deprived of organic molecules or slow down enzyme function, reducing ATP production (Figure 11.1). This chapter on cell energy stress will outline the challenges associated with energy stress, the mechanisms used to detect energy stress and the strategies and mechanisms used to tolerate energy stress.

Chapter Outline

11.1 Challenges Associated with Energy Stress

11.2 Sensing Energy Imbalances

11.3 Strategies & Mechanisms of Energy Stress Tolerance

License

Icon for the Creative Commons Attribution 4.0 International License

Online Textbook for Biol 395 Copyright © 2024 by Jantina Toxopeus is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.