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Cell
Cell Structure
16
Science
7th Grade
01/28/2010

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Cards

Term
cell wall
Definition
the rigid porous outer layer of a plant cell
Term
Centoriole
Definition
a bundle of microtubes that helps orginiz the movement of chromosomes during cell divison
Term
Chloroplast
Definition
an organell that converts the radiant energy of the sun into chemical energy through the process of photosynthesis
Term
Endoplasmic Reticulum
Definition
a network of passagenways in which occupying most of the sapes between the cell membrane and the nucleus
Term
Golgi Appartus
Definition
A stack of membrane that collects mofifies and packages chemicals compounds
Term
Lysosomes
Definition
A small sacthat contains digestive chemicals
Term
Mitochondria
Definition
organells that using oxygen convert nutriens into energy that can be use by the cell
Term
Nuclear Envelope
Definition
a double layered membrane that surrounds and protects the nuclus
Term
Nucleous
Definition
A small body in the nucleus where ribosomes are synthesized
Term
Nucleus
Definition
A round body in the center of the cell that contains DNA and directs the cells actives
Term
Organells
Definition
A cell structure that performs a specific function
Term
Plasma Membrane
Definition
A double layered membrane that surrounds the cell also called the cell membrane it regulates what enters and leaves the cell
Term
Plastid
Definition
Small structures that can stores food (leucoplast) or pigment (chromoplast)
Term
Ribosome
Definition
tiny structure where proteins are synthesized
Term
Vacuole
Definition
Sacs that stores water, nutrients and other chemicals. the large vacuoles found in the plant cells helps the cells maintain their shape
Term
Vescle
Definition
Small packages of nutrients or protenis created by the golgi apparatus
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