| Unlike animal cells, a plant cell is surrounded by a ____. |
cell membrane |
| A ____ is a large storage organelle filled mostly with water. |
cell wall |
| The cytoplasm of all cells is enclosed by a ____. |
chloroplast |
| An ____ is any subunit within a cell that has a specific function. |
nucleolus |
| A ____ is an organelle that links amino acids into proteins. |
nucleus |
| The ____ of each human cell contains 23 chromosome pairs. |
organelle |
| A ____ organelle converts solar energy into chemical energy. |
ribosome |
| A ____ is a large spherical body within the nucleus. |
vacuole |
