4周搞定2000+托福核心词
toxin = tox(毒) + in(化学名词后缀) = 毒素
insulin = insul(岛屿) + in(化学名词后缀) = 胰岛素
木质素
lignin
常考释义
These include conducting vessels that transport water and minerals upward from the roots and that move the photosynthetic products from the leavesto the rest of the plant body and the stiffening substance lignin, which support the plant body, helping it expose maximum surface area to sunlight.
其中包括从根部向上运输水分和矿物质的导管，从叶片向植物其他部分输送光合作用产物的筛管以及用来支撑植物体、使得它以最大表面积接触阳光的硬化木质。
来源于：阅读OFFICIAL25 P3n. 木质素【植】
Lignin is a characteristic component of secondary walls.
木质素是次生壁成份的特征。
These include conducting vessels that transport water and minerals upward from the roots and that move the photosynthetic products from the leavesto the rest of the plant body and the stiffening substance lignin, which support the plant body, helping it expose maximum surface area to sunlight.
其中包括从根部向上运输水分和矿物质的导管，从叶片向植物其他部分输送光合作用产物的筛管以及用来支撑植物体、使得它以最大表面积接触阳光的硬化木质。
来源于：阅读OFFICIAL25 P3以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
