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Structure and Function of Cells
N/A
10
Biology
7th Grade
11/07/2010

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Term
cytoskeleton
Definition
a web of proteins that keeps cells from collapsing and lets it move
Term
ribosome
Definition
cell organelle that uses amino acids to create proteins
Term
endoplasmic reticulum
Definition
a system of membranes found in the cytoplasm that aids in the porduction, porcessing, and transporting of proteins, lipids, and other materials
Term
mitochondria
Definition
an organelle surrounded by two membranes that breaks down sugar into energy in the form of ATP
Term
chloroplasts
Definition
an organelle in a plant cell that is the site of photosynthesis; it porduces glucose using water, sunlight, and carbon dioxide; contains chlorophyll, a green pigment that traps the energy of sunlight
Term
golgi complex
Definition
an organelle composed of folded membranes that modifies, packages, and distributes proteins and lipids through vesicles
Term
vesicle
Definition
a small bubble that goes through the cytoplasm carrying material to be transported
Term
lysosome
Definition
an organelle that breaks things down using digestive enzymes; mostly in animal cells
Term
vacuole
Definition
an organelle much larger in plant cells than animal cells which stores primarily water and sometimes digestive enzymes; if it looses water the plant may wilt
Term
cytoplasm
Definition
watery fluid inside the cell which has all the organelles floating in it
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