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looking inside cells
how do parts of a cell work?/how do cells work toghether
15
Science
7th Grade
01/13/2012

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Term
 
cell wall 
Definition
a rigid layer that surrounds the cells of plants and some other organisms.
Term

cell membrane 

Definition
controls which substances pass into and out of a cell
Term
nucleus
Definition

acts as a cells control center 

(brain)

Term
organelles
Definition
carry out specific functions within a cell
Term
ribosomes
Definition
small grain shaped organelles that produce proteins 
Term
cytoplasm
Definition
fills the region between the cell membrane and the nucleus 
Term
mitochondria 
Definition

converts energy 

(power house)

Term

endoplasmic reticulum

(ER)

Definition

produces many substances. 

the ER helps the attached ribosomes make proteins 

Term
golgi apparatus 
Definition
recieves protiens and other newly formed materials from the ER
Term
vacuole
Definition
stores water,food,or other materials needed by the cell.
Term
chloroplast
Definition
captures energy from the sun.
Term
lysosomes
Definition
substances that break down large food particals. 
Term
tissue 
Definition
a group of similar cells working toghether to preform a specific function.
Term
organ
Definition
made of diffrent kinds of tissue 
Term
organ system
Definition
a group of organs that work toghether to preform major functions.
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