Cellular transport systems

Cellular transport systems are mechanisms that move substances—like nutrients, gases, and waste—into and out of cells, maintaining balance and supporting function. These processes include diffusion (movement from high to low concentration), facilitated diffusion (using proteins for larger molecules), active transport (requiring energy to move substances against the concentration gradient), and bulk transport (like endocytosis and exocytosis for large particles). Together, they regulate the internal environment of the cell, ensuring it gets what it needs and removes what it doesn't, essential for health and proper operation of living organisms.