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Cells Review
Cell theory , people, cell organelles
Question | Answer |
---|---|
nucleus | controls the cell's activities ; holds DNA |
nucleolus | dark area in nucleus ; makes ribsosomes within the nucleus |
lysosome | has digestive enzymes for dissolving worn-out cell parts, food particles and foreign invaders |
Rough ER | part of ER that makes proteins |
Smooth ER | part of ER that makes lipids and detoxes the cell |
cell membrane | selectively allows particles to move into and out of the cell |
vacuole | used for storage of water, food, waste ; much larger in plant cells |
cell wall | made of cellulose ; provides rigid support and structure for plant cells |
mitochondria | provides energy (ATP) to the cell |
golgi | modifies, processes, packages and transports proteins |
chloroplast | only in plant cells ; has chlorophyll to do photosynthesis |
centriole | only in animal cells ; helps separate chromosomes during cell division |
ribosome | makes proteins |
cell theory | states that all cells come from existing cells, cells are the building blocks of life & all organisms are made of cells |
prokaryotic | cell without a nucleus or membrane bound organelles ex. bacteria |
eukaryotic | cell with a nucleus and membrane bound organelles ex. plant and animals |
cytoplasm | jelly-.like fluid that fills the cell and holds the organelles |