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17 Cards in this Set

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cell wall
composition-contains cellulose fibrils

function-protects and supports
plasma membrane
composition-phospholipid bilayer with embedded proteins

function-defines cell boundary; regulates molecules that enter and leave cell
nucleus
compositions-nuclear envelope surrounding nucleoplasm, chromatin, and nucleoli

function-storage of genetic information; synthesis of DNA and RNA
nucleolus
composition-concentrated area of chromatin, RNA, and proteins

function-ribosomal formation
Ribosome
composition-two subunits made of rRNA and proteins

function-protein synthesis
endoplasmic reticulum
composition-membranous flattened channels and tubular canals

function-synthesis/modification of proteins/molecules and transport by vesicle formation
Rough ER
compositions-studded with ribosomes

function-synthesizes proteins
Smooth ER
composition-no ribosomes

function-various; lipid synthesis in some cells
golgi apparatus
composition-stack of membranous saccules

functions-processing, packaging, and distribution of proteins and lipids
vacuoles and vesicles
composition-membranous sacs

function-storage of substances
lysosome
composition-membranous vesicles containing digestive enzymes

function-intracellular digestion
peroxisomes
composition-membranous vesicle containing specific enzymes

function-various metabolic tasks
mitochondrion
composition-membranous cristae bounded by an outer membrane

function-cellular respiration
chloroplast
composition-membranous grana bounded by two membranes

function-photosynthesis
cytoskeleton
composition-actin filaments, intermediate filaments, microtubules

function-keeps shape of cell and movement of its parts
cilia and flagella
composition-9+2 pattern of microtubules (9 doublets surrounding central pair)

function-movement of cell
centriole
composition-9+0 pattern of microtubules(9 triplets with nothing in middle)

function-formation of basal bodies