Here's why:
* Metabolism refers to the sum of all chemical reactions that occur within a living organism to maintain life.
* These reactions include anabolism (building up complex molecules from simpler ones) and catabolism (breaking down complex molecules into simpler ones).
* Metabolism is essential for:
* Growth and development: Building new cells and tissues.
* Energy production: Breaking down nutrients to fuel life processes.
* Waste removal: Getting rid of byproducts of metabolism.
* Maintaining homeostasis: Keeping the internal environment stable.
Other terms like "biological processes" or "life functions" can be used, but metabolism is the most precise and comprehensive term to describe all the activities necessary for life.
