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Cells
biology
22
Biology
10th Grade
10/13/2008

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Term
nuclear envelope
Definition
nucleus is surrounded by 2 membranes
Term
vacuoles
Definition
stores materials, water, salts & proteins & carbohydrates
Term
cell membrane
Definition
thin, flexible barrier around a cell regulates what enters
Term
cell wall
Definition
strong layer around a cell membrane in plants
Term
cells
Definition
basic unit of life
Term
chromatin
Definition
granial material consists of DnA
Term
prokayrote
Definition
cells that do not contain a nucleus
Term
endoplasmic reticulum
Definition
site where lipids components of the cell membrane are assembled
Term
cytoskeleton
Definition
eukaryotic cells are given there shape
Term
nucleus
Definition
membrane-enclosed structure cells genetics located in the center
Term
nucleolus
Definition
assemlby of ribosomes begins
Term
centrioles
Definition
located near the nucleus helps organize cell division
Term
eukaryote
Definition
cells contain nuclei
Term
ribosomes
Definition
RNA & protein found through the cytoplasm
Term
chromosomes
Definition
when a cell divides condenses to form one
Term
chloroplasts
Definition
convert chemical energy stored in food into compounds photosynthesis
Term
cell theory
Definition
fundamental concept of biology
Term
golgi apparatus
Definition
proteins produced in the rough er move next into organelle
Term
organelles
Definition
"little organs"
Term
mitochondria
Definition
capture energy from sunlight to chemical energy
Term
cytoplasm
Definition
portion of the cell outside the nucleus
Term
lysosomes
Definition
small organelles filled with enzymes
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