1. The tonoplast plays a crucial role in regulating the concentration of solutes within the plant cell.（质膜在调节植物细胞内溶质浓度中起着关键作用。）
2. The vacuole, enclosed by the tonoplast, stores water, nutrients, and other substances in plant cells. （被质膜包裹的液泡在植物细胞中储存水分、营养物质和其他物质。）