X does not have nucleus and membrane bounded organelles .

没有细胞核及有薄膜包围的细胞器.

This mattered for two reasons . First , melanosomes are organelles of pigment .

这一发现有两大意义：一，黑色体是色素的细胞器。

Study on organelles and metabolism of trichomonas and entamoeba histolytica .

毛滴虫和溶组织内阿米巴的细胞器及其代谢的研究。

The vacuoles of yeast cells represents persistent organelles .

酵母细胞的液泡是永久性的细胞器。

Y has nucleus and membrane bounded organelles .

有细胞核及有薄膜包围的细胞器.