| A | B |
|---|
| cell | basic unit structure & function of all organisms |
| organelle | "tiny organs" that make up a cell |
| cell wall | outer most boundary of a plant cell composed of cellulose |
| cell membrane | thin, flexible envelope that surrounds a cell; controls what goes in and out |
| nucleus | organelle that directs all cellular activities; control center |
| chloroplast | contains chlorophyll; involved in the process of photosynthesis |
| cytoplasm | jelly-like region between the cell membrane & the nucleus |
| cytology | the study of cells |
| taxonomy | the study of classification |
| biology | the study of life |
| autotroph | organism that can produce its own food through photosynthesis |
| heterotroph | organism that obtains its food |
| chromosome | rod-like cell structures that control the cell & passes on traits to new cells |
| vacuole | large round sac that stores materials for the cell |
| ribosome | protein-assembling site of the cell |
| mitochondrion | organelle that performs cellular respiration; the powerhouse of the cell |
| protoplasm | the living parts of a cell; nucleus, cytoplasm, cell membrane |
| endoplasmic reticulum | tubular passageways that transports substance throughout the cell; "the cell subway" |
| lysosome | small round organelles that digest food & worn-out organelles in the cell |
| golgi apparatus | organelle that secretes chemicals around materials in order for these materials to be transported out of the cell |
