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Cell Vocabulary
Term | Definition |
---|---|
prokaryote | Simple cells WITHOUT a nucleus or most organelles (DNA floats in the cytoplasm) |
eukaryote | Complex cell with a nucleus that holds the DNA. Has organelles. |
organelle | Parts of the cell that help the cell do certain functions |
Golgi apparatus | modifies and packages proteins and determines where they go |
endoplasmic reticulum | makes proteins and other molecules and transports them around cell |
cell wall | a strong structure outside of the cell membrane that give the cell support |
cell membrane | a selectively permeable structure that allows some things to pass in and out and not others |
cytoplasm | jelly-like fluid inside the cell membrane. Contains water and dissolved nutrients. |
choloroplast | organelle in PLANT cells. It's where plants make their own food (photosynthesis). They are green and make leaves green. |
nucleus | the round part near the center of the cell. 1. It controls the cells functions and tells it what to do 2. It holds the DNA |
DNA | genetic info passed on from parents that give the organism instructions |
selectively permeable | selective= choosy permeable= pass through selectively permeable= choosy about what can pass through (not everything!) |
central vacuole | stores a LARGE amount of water in PLANT cells |
mitochondria (more than 1=mitochondrion) | organelle in ALL eukaryotes. Uses oxygen to break down sugar to release energy to keep cell alive. |
ribosomes | make proteins for the cell |
lysosomes | break down and recycle old cell parts |