click below
click below
Normal Size Small Size show me how
Muench - Cells
Mr. Muench: Study of cells
| Term | Definition |
|---|---|
| cell | smallest structural and functional unit of life |
| unicellular | organism consisting of one cell; the one cell must carry out all functions of life |
| multicellular | organism consisting of more than one cell; cells may have specialization |
| chloroplast | organelle in plant cells responsible for photosynthesis |
| organelle | any of a number of specialized structures within a cell |
| photosynthesis | process that uses sunlight to convert carbon dioxide and water into sugar with oxygen as a byproduct |
| membrane | the outer layer of cells that selectively allows materials in and out |
| nucleus | the command center of the cell containing the DNA; sends messages in form of RNA to rest of cell |
| chromosomes | packages of DNA found in the nucleus of the cell |
| DNA | the carrier of genetic information; long molecule shaped like a twisted ladder (double-helix) that can come apart like a zipper and create copies of itself |
| RNA | a messenger molecule in the cell |