Question

How do plants transport materials and maintain internal balance without a circulatory system? In 3 sentences

Answer 1

Plants take up water and dissolved minerals at the roots and move them upward through xylem vessels by capillary action and the cohesion–tension mechanism driven by transpiration from leaves. Sugars and other organic solutes are transported in phloem by pressure-flow from sources (like leaves) to sinks (like roots or fruits), while cells exchange substances locally via diffusion and plasmodesmata. Internal balance is maintained by stomatal opening/closing, osmotic adjustments in cells, and hormonal signals (e.g., abscisic acid, auxin) that regulate water loss, ion distribution, and growth.