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cell parts
ap biology--cell parts+description/function
20
Biology
12th Grade
10/14/2009

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Term
nucleolus
Definition
where the components of the ribosomes are synthesized and assembled, found in the nucleus.
Term
centrioles
Definition
paired structures found in animal cell; consists of microtubules in a 9+0 arrangement; involved in cell division.
Term
vesicle/transport
Definition
carries ER products to the golgi
Term
chromatin
Definition
consists of dna and protein; condenses to form chromosomes
Term
cytoplasm
Definition
the enitre region between the nucleus and the cell membrane; consists of the cytosol
Term
rough ER
Definition
channel proteins to transport vesicles; attaches carbohydrates to some proteins; involved in membrane production of vesicles; has attached ribosomes
Term
cell membrane
Definition
forms the boundary of the cell; acts as a selecticve barrier allowing certain materials to pass but not others
Term
smooth ER
Definition
synthesizes lipids including phospholipids and steroids; metabolizes carbohydrates; detoxifies drugs and poisons; stores calcium ions; lacks attache ribosomes
Term
golgi
Definition
consists of flattened membranous sacs; recieves transport vesicles from the ER; modifies ER products; produces certain molecules; produces lysosomes and secretory vesicles
Term
lysosome
Definition
membrane bound sac of hydrolic enzymes; enzymes are used to digest food, other molecules and old, worn out cell parts
Term
nuclear envelope
Definition
double membrane that forms the boundary between the nuclear contents and the cytoplasm; perforated with pores
Term
chloropast
Definition
site of photosynthesis; produces food using light energy, CO2, and H2O
Term
nucleus
Definition
contains most of the genes that control the eukaryotic cell; contains the most conspicuos organelle in a eukaryotic cell; contains the nucleolus and chromatin
Term
peroxisome
Definition
contains enzymes that transfer Hydrogen from substrates to oxygen producing H202; detoxifies alcohol; contains enzymes that converts enzymes that converts H2O2 to H20 and O2
Term
free ribosomes
Definition
the site of protein synthesis; suspended in the cytosol; produces proteins for use within the cell.
Term
mitochondria
Definition
site of cellular respiration; produces ATP from sugars, fats, and other fuels
Term
mitochondria
Definition
site of cellular respiration; produces ATP from sugars, fats, and other fuels
Term
vacuole
Definition
membrane bound sacs; larger than vesicles; stores materials
Term
bound ribosomes
Definition
site of protein synthesis; attached to the outside surface of the endoplasmic reticulum; produces proteins for use outside the celll or for use in the cell membrane
Term
secretory vesicles
Definition
carries golgi modified products to the cell membrane; fuses with the cell membrane releasing the contents to outside the cell
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