Plant Physiology | And Biochemistry

Plants don't have nervous systems, but they communicate via chemical signals. Plant hormones, or , act as the "directors" of growth.

Physiologically, plants are master hydraulic engineers. Through the , plants pull water from the soil to their highest leaves, sometimes hundreds of feet in the air, without a mechanical pump. Biochemically, this is supported by specialized proteins called aquaporins that regulate water flow through membranes, and active transport systems that use ATP to move essential minerals like nitrogen and potassium against concentration gradients. Hormonal Orchestration PLANT PHYSIOLOGY and BIOCHEMISTRY

coordinate cell elongation and light-seeking behavior (phototropism). Ethylene triggers fruit ripening and leaf drop. Plants don't have nervous systems, but they communicate