| Questions | Answers |
|---|---|
| It controls all cellular activities. | nucleus |
| the powerhouses—they help cells generate energy for all cellular processes. | mitochondria |
| oval or round bodies in the cytoplasm that aid in cellular digestion | lysosome |
| It helps transport materials and manufacture proteins. | endoplasmic reticulum |
| protects the cell from the external environment and allows only a few molecules to pass through. | nucleus |