The process involves extension and invagination of the plasma membrane to form small vesicles in pinocytosis (pinocytotic vesicles) or vacuoles in phagocytosis (food vacuoles).
内
过程涉及到细胞
的延伸和内陷。
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学篇 In a very similar way, the membranes covering your lungs for example, are actually invaginations of your epithelium — where the tissue that makes up your you-tube folds to form a cavity — just like this balloon when I push my fingers into it.
打个比方，覆盖在你肺部
薄膜实际上是上皮内陷——构成你输卵管组织折叠形成一个腔——就像
手指伸进去这个气球。
。
功能与细胞分裂有关。
