Plasma (cell surface) membrane -
- Regulates the movement of substance into and out of the cell.
- Contains recepter molecules on it, which allow it to respond to chemicals like hormones.
Cell Wall -
- A rigid structure that surrounds plant cells. It;s made mainly of carohydrate cellulose
- Supports plant cells
Nucelus
- A large organelle surrounded by a nuclear envelope (double membrane), which contains many pores
- The nucleus contains chrmatin and often a structure the nucleolus
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