関連ワード:  what are two functions of cytoplasm    what are two functions of cell membrane    what are the two main functions of cytoplasm    what are the main functions of cytoplasm    what are the main functions of cytoplasmic streaming in plant cells    what are the main functions of cytoplasmic streaming    what are 3 main functions of cytoplasm    what are main functions of cell membrane    what are two main functions of cell membrane    what are the three main functions of cytoplasmic membrane