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17 Cards in this Set
- Front
- Back
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cell wall
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composition-contains cellulose fibrils
function-protects and supports |
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plasma membrane
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composition-phospholipid bilayer with embedded proteins
function-defines cell boundary; regulates molecules that enter and leave cell |
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nucleus
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compositions-nuclear envelope surrounding nucleoplasm, chromatin, and nucleoli
function-storage of genetic information; synthesis of DNA and RNA |
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nucleolus
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composition-concentrated area of chromatin, RNA, and proteins
function-ribosomal formation |
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Ribosome
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composition-two subunits made of rRNA and proteins
function-protein synthesis |
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endoplasmic reticulum
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composition-membranous flattened channels and tubular canals
function-synthesis/modification of proteins/molecules and transport by vesicle formation |
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Rough ER
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compositions-studded with ribosomes
function-synthesizes proteins |
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Smooth ER
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composition-no ribosomes
function-various; lipid synthesis in some cells |
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golgi apparatus
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composition-stack of membranous saccules
functions-processing, packaging, and distribution of proteins and lipids |
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vacuoles and vesicles
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composition-membranous sacs
function-storage of substances |
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lysosome
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composition-membranous vesicles containing digestive enzymes
function-intracellular digestion |
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peroxisomes
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composition-membranous vesicle containing specific enzymes
function-various metabolic tasks |
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mitochondrion
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composition-membranous cristae bounded by an outer membrane
function-cellular respiration |
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chloroplast
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composition-membranous grana bounded by two membranes
function-photosynthesis |
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cytoskeleton
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composition-actin filaments, intermediate filaments, microtubules
function-keeps shape of cell and movement of its parts |
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cilia and flagella
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composition-9+2 pattern of microtubules (9 doublets surrounding central pair)
function-movement of cell |
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centriole
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composition-9+0 pattern of microtubules(9 triplets with nothing in middle)
function-formation of basal bodies |
