| A | B |
|---|
| cell | the smallest unit of an organism that can perform life functions |
| cell membrane | outer boundary of the cell that allows only certain materials to pass into and out of the cell |
| cell theory | states that all organisms are made up of one or more cells, the cell is the basic unit of life, and all cells come from cells that alreay exist. |
| cell wall | rigid structure made of cellulose that supports and protects the plant cell; found outside cell membrane |
| cytoplasm | gel-like material inside the cell membrane and outside the nucleus |
| endoplasmic reticulum | folded membrane that moves materials around in the cell (transportation system) |
| mitochondria | organelles that break down food and release energy (cell powerhouse) |
| meiosis | reproductive process that produces four haploid sex cells from one diploid cell and ensures offspring will have the same number of chromosomes as the parent organism |
| mitosis | process in which nucleus divides to form two identical nuclei; It consists of a series of phases: Interphase, Prophase, Metaphase, Anaphase and Telophase |
| nucleus | directs all cell activities |
| organelles | structures that make up a cell; "tiny organs" |
| vacuoles | storage tanks for the cell (food, water, and waste) |
