| A | B |
|---|
| cell membrane | forms barrier between the cell and its surroundings |
| cell membrane | keeps contents of cell inside |
| cell membrane | allows simple substances to enter and leave the cell |
| cell membrane | controls movement of substances like glucose in and out of cell |
| cell membrane | described as partially permeable |
| nucleus | controls activities in the cell |
| nucleus | controls how cells develop |
| cytoplasm | place where many chemical reactions take place |
| chloroplast | organelle where photosynthesis takes place in plant cells |
| cell wall | stops cells from bursting when they fill with water |
| cell wall | gives plant cell shape |
| cell wall | described as fully permeable |
| sap vacuole | full of water to maintain shape and firmness of plant cell |
| sap vacuole | stores salts and sugars |
