Botany植物学Celltheory细胞学说cellmembrane细胞膜nucleus细胞核Organelle细胞器cellwall细胞壁cytoplasm细胞质protoplast原生质体cellcycle细胞周期mitochondrion线粒体photosynthesis光合作用unitmembrane单位膜chloroplast叶绿体chlorophyll叶绿素xanthophyll叶黄素carotene胡萝卜素golgiosome高尔基体ribosome核糖体lysosome溶酶体microfilament微丝nuclearfission核分裂reproduction繁殖primarywall初生壁secondarywall次生壁plasmodesma胞间连丝mitosis有丝分裂amitosis无丝分裂meiosis减数分裂cytokinesis胞质分裂interphase间期prophase前期metaphase中期anaphase后期te