| A | B |
| transmission electron microscope | TEM |
| electron microscope | uses a magnetic field to bend beams of light. |
| cytoplasm | gel-like material inside the cell membrane. |
| mitochondria | powerhouse of cells |
| host cell | cell in which a virus reproduce. |
| endoplasmic reticulum | folded membrane that moves materials |
| ribosomes | small structure in the cytoplasm |
| cell wall | supports and protects the plant cell |
| robert hooke | credited with discovering cells |
| tissue | groups of similar cells that do same sort of work |