按顶体的形态可以划分为十种类型：(1)原生质膜及顶体完好。
The change of acrosomal morphology may be classified into 10 categories: (1) plasma membrane and acrosome intact.
原核细胞和真核细胞在许多方面很像，都被细胞膜或原生质膜包着。
Prokaryotic and eukaryotic cells are similar in several ways. Both are surrounded by a cell membrane, or plasma membrane.
原生质膜的内折，尤其存在于真菌的菌丝和孢子中，在某些藻类和高等植物中也存在。
Lomasome an infolding of the plasma membrane found particularly in fungal hyphae and spores, and also in some algae and higher plants.
质膜外泡：原生质膜的内折，尤其存在于真菌的菌丝和孢子中，在某些藻类和高等植物中也存在。
Lomasome an infolding of the plasma membrane found particularly in fungal hyphae and spores and also in some algae and higher plants.
质膜外泡：原生质膜的内折，尤其存在于真菌的菌丝和孢子中，在某些藻类和高等植物中也存在。
Lomasome an infolding of the plasma membrane found particularly in fungal hyphae and spores and also in some algae and higher plants.
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