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Cell
Term | Definition |
---|---|
cell | functional unit of life |
prokaryotic | lack nuclear membrane. simple structure |
eukaryotic | nucleus. more complex. cells of plants, animals, fungi, protists |
flagella | whip like structure. helps them move. |
biofilm | ex: plaque. |
cytoskeleton | found in plants (cell walls), fungi (chitin), some protists |
nucleus | controls cells activities |
nucleolus | region where ribosomal RNA is synthesized |
chromosomes | consists of DNA wrapped around proteins |
nuclear envelope | double membrane. surrounds nucleus |
nuclear pores | control entry and exit of materials |
histones | most common proteins |
rough ER | make proteins. has ribosomes. transported by ER |
smooth ER | does not have ribosomes. transport lipids and makes fats |
protein synthesis | occurs on ribosomes that are free floating in he cytoplasm and on ribosomes attached to ER |
Golgi apparatus | post office. sorts and packages. |
lysosomes | formed by Golgi apparatus. digestion. |
phagocytosis | cell bringing something in |
glyoxisomes | found in plants. convert fat into sugar |
peroxisomes | removes toxins from cytoplasm |
mitochondria | double membrane. energy. |
chloroplasts | makes energy for plant. thylakoids trap light for photosynthesis. |
amyloplasts | synthesize and store starch in roots and tubes. |
chromoplasts | color |
central vacuole | stores water in plants |
pinocytosis | drinking |
phagocytosis | eating |
osmosis | water moving through a selective permeable membrane |