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cells
Cell Structure
17
Science
7th Grade
01/22/2010

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Term
Cell wall
Definition
the rigid porous layer of a plant cell.
Term
centriole
Definition
a bundle of microtubules that helps organize the movement of chromosomes during cell division
Term
chloroplast
Definition
an organelle
Term
cytoplasm
Definition
a jelly-like substance, composed mainly of water, occupying most of the space between the cell membrane and the nucleus.
Term
(er)
Definition
a network of passages in which chemical compounds are manufactured,processed and trasported
Term
golgibody
Definition
a stack of membranes that collects,modifies, and packages chemicalcompounds.
Term
lysosome
Definition
a small sac that contains digestive chemicals.
Term
mitochondria
Definition
organelles that using o2,convert nutrients in2 energy that can be used by the cell.
Term
nuclear envelope
Definition
a doubled layer membrane that surrounds and protects the nucleus.
Term
nucleus
Definition
a round body in the center of the cell that contains DNA and directs the cells activities.
Term
organelle
Definition
a cell structure that performes a specific function.
Term
plasma membrane
Definition
a embrane,it regulatesdoubled-layerd membrane that surrounds the cell.Also called the cellm
Term
plastid
Definition
small structure that can store food
Term
plastid
Definition
small structure that can store food
Term
ribosome
Definition
tiny structure where protiens are synthesized.
Term
ribosome
Definition
tiny structure where protiens are synthesized.
Term
vesicales
Definition
stores food and water and other nutrients
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