Here's a breakdown:
* Chemical Energy: This energy is stored in the bonds between atoms within molecules.
* Breaking Bonds: When these bonds are broken, energy is released.
* Cellular Work: Cells use this released energy to power various processes like:
* Movement: Contracting muscles, moving organelles
* Building Molecules: Synthesizing proteins, carbohydrates, lipids, etc.
* Transport: Pumping molecules across membranes
* Communication: Sending signals between cells
* Maintaining Homeostasis: Regulating temperature, pH, etc.
The most common molecule that cells use to store and release chemical energy is adenosine triphosphate (ATP). ATP has high-energy bonds that, when broken, release the energy needed for cellular processes.
