Protein homeostasis refers to the balance and maintenance of protein levels within a cell. This process ensures that proteins are correctly synthesized, folded, and degraded as needed. Proper protein function is crucial for cellular health, as misfolded or damaged proteins can lead to diseases. Cells utilize various mechanisms to achieve protein homeostasis, including chaperones that assist in proper protein folding and proteasomes that degrade unwanted proteins. Additionally, autophagy helps recycle cellular components, further supporting the maintenance of protein balance. Together, these systems work to keep cellular functions running smoothly.