| A | B |
| organelle | tiny structure that carries out a specific function within the cell |
| cell wall | rigid layer of nonliving material that surrounds the cells of plants to help support and protect the cell |
| cell membrane | controls what substances come into and out of a cell |
| nucleus | cell's control center, directing all of the cell's activities |
| nuclear envelope | protects the nucleus |
| chromatin | strands in the nucleus that contain genetic material |
| nucleolus | ribosomes are made here |
| mitochondria | "Powerhouse" of the cell because they convert energy in food molecules to energy the cell can use to carry out its functions |
| endoplasmic reticulum "ER" | carry proteins and other materials from one part of the cell to another |
| ribosomes | small grain-like bodies that function as factories to produce proteins |
| golgi bodies | receive proteins and other newly formed materials from the ER and distribute them to other parts of the cell |
| chloroplasts | capture energy from the sunlight and use it to produce food for the cell |
| vacuoles | storage areas for the cell |
| lysosomes | small, round structures containing chemicals that break down certain materials in the cell |