Soru

Read the following passage regarding the physiological adaptations of xerophytic plants:

In examining the physiological adaptations of xerophytic angiosperms to severe desiccation, botanists have delineated a complex cascade of biochemical responses that mitigate cellular damage. The onset of water deficit rapidly induces the biosynthesis of the phytohormone abscisic acid (ABA) in root tissues, which is subsequently translocated to the leaves. There, ABA binds to specific receptors, triggering a signaling cascade that ultimately forces the efflux of potassium ions from guard cells, precipitating a loss of turgor and subsequent stomatal closure to minimize transpirational water loss. Concurrently, the metabolic shift favors the accumulation of compatible solutes, such as proline and glycine betaine; these osmolytes serve to lower the cellular osmotic potential, thereby enabling the continued extraction of water from the drying soil matrix without structurally compromising sensitive metabolic enzymes. Furthermore, prolonged desiccation stress upregulates the translation of late embryogenesis abundant (LEA) proteins. Highly hydrophilic and natively unfolded, LEA proteins act as molecular chaperones, stabilizing critical cellular macromolecules and integral membrane structures against desiccation-induced denaturation. Finally, to optimize the internal allocation of diminishing moisture, these plants increase the expression of aquaporins, specialized channel proteins that facilitate the rapid redistribution of existing water resources across cellular compartments.

Based on the passage, match each biochemical adaptation with its explicitly stated physiological consequence.