| A | B |
|---|
| nucleus | the control centre of the cell |
| nucleolus | small circular structure(s) within the nucleus; may be involved in protein synthesis |
| chromosomes | genetic material found in the nucleus |
| mitochondria | where energy in the form of ATP is produced |
| ribosomes | where proteins are made |
| endoplasmic reticulum | tubular passway that serves as the transport system in the cell especially for proteins |
| golgi apparatus | packages up protein |
| lysosome | special type of vacuole that breaks down large molecules and cell parts (digestive activities) |
| chloroplast | where photosynthesis occurs (contains chlorophyll) |
| cell membrane | semi-permeable; it controls what moves in and out of the cell |
| cell wall | protects and supports plant cells |
| eukaryote | cell that has a membrane-bound nucleus |
| prokaryote | a cell with no nuclear membrane and few (if any) membrane bound organelles |
| vacuole | stores wastes, water, food (baglike structure in the cytoplasm-much bigger in the plant cells) |
| cytoplasm | gel-like material located between the cell membrane and nucleus |
| cell wall | found only in plant cells and provides support and is made up of cellulose |
| cell | basic unit of structure-1st level of organization |
| tissue | group of similar cells that perform a special function in an organism |
| organism | any living form of life capable of growing and reproducing |
| multicellular (organism) | comprised of a variety of specialized cells, tissues, organs and organ systems that perform specialized functions |
| photosynthesis | process by which plants use the energy from sunlight to produce sugar, which cellular respiration converts into "fuel" |
| organ | group of different tissues working together (3rd level od organization) |
| organelle | "tiny organs" that make of the cell |
