| A | B |
| species | a group of organisms that have the same characteristics and are able to reproduce |
| compound microscope | microscope having more than one lens |
| Robert Hooke | English scientist used compund microscope to view cells |
| Anton van Leeuwenhoek | Dutch lens grinder who studied living organisms |
| cell theory | stating that the cell is the basic unit of all living organisms & only living cells can reproduce |
| nucleus | part of the cell that controls activities of other cell parts |
| chromosome | string like structure in a cell nucleus that carries information controlling all the cells activites |
| cell membrane | thin outer covering that holds a cell together |
| cytoplasm | clear jellylike material tht fills the space between the cell membrane and the nucleus |
| organelle | tiny structure in the cytoplasm of a cell that terforms a special job |
| mitochondria | organelles where food and oxygen react to release energy |
| vacoule | saclike organelle used ofr storing materials |
| endoplasmic reticulum | organelle that transports materials inside the cell |
| ribosome | organelle that puts together proteins for the cell |
| chloroplast | organelle that makes sugars, using carbon dioxide, water and the energy from sunlight |
| chlorophyll | green substance in the chloroplansts that traps energy from sunlight |
| cell wall | tough, nonliving material that acts like an outside skeleton for each plant cell |
| photosynthesis | process of makeing glucose (a simple sugar) using carbon dioxide, water and light energy |
| Ameba | one celled organism living on the bottom of bodies of water moves useing pseudopods (false feet) |
| bacteria | single celled microorganisms that live in soil,water, organic matter of plants & animals |