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a mayfield
cell structure
16
Science
7th Grade
01/22/2010

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Term
cell wall
Definition
the rigid, porous outer layer of a plant cell
Term
centriole
Definition
a bundel of microtubeles that helps organize the movement of chromosomes during cell division
Term
chloroplast
Definition
an organell that coverts the radiant energy of the sun into chemical energy through the process of photosythisis
Term
cytoplasm
Definition
a jelly like substanc, composed mainley of water, occupying most of the space between the cell membrane and the nucleas
Term
endoplasmic reticulum
Definition
a network of passage ways in which chemical compounds are manufacterd, processed, and transported
Term
golgi apparatuas
Definition
a stack of membranes that collects, modifies, and packeges chimical compounds
Term
lysosomes
Definition
a small sac that contains digestive chemicals
Term
mitochondria
Definition
oraganells that, using oxygen, converts nutrience into energy that can be used by the cell
Term
nuclear envelope
Definition
a double laterd membrane that surrounds and protects the necleaus
Term
nucleolus
Definition
a small body in the nucleus where ribosomes are enthysised
Term
organell
Definition
a cell struture that preforms a specific function
Term
plasma membrane
Definition
a double layerd membrane that surrounds the cell. also called the cell membrane, it regultaes what enters and leaves the cell
Term
plastide
Definition
small structure that can store food (leocoplast) or pigmite (chromoplast)
Term
ribosomes
Definition
tiny structure where protiens are synthisised
Term
vacuel
Definition
sac that stores water, nutrience, and other chemicals. the large vacole found in plant cellsmaintane there shape
Term
vesicle
Definition
small package of nutreince or protirns created by the golgi apparatus
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