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Cells & Organelles

TermDefinition
cell wall rigid structure outside of the plasma membrane; protection and support for plants
chromatin master copy of directions for making proteins
nucleolus located within the nucleus; makes ribsomes
ribosomes site (location) where the cell assembles enzymes and other proteins
cytoplasm clear, gelatinous fluid inside the cell
endoplasmic reticulum the site (location) of chemical reactions in a eukaryotic cell; work area of the cell; transports proteins
Golgi apparatus sorts proteins and packages them into vesicles
vacuole a sac used to store food, enzymes, and other needed materials; may also store waste
lysosome contains digestive enzymes; may digest worn out organelles, food, viruses, and bacteria
chloroplast captures light energy and produces food to store for a later time
plastid plant organelle used for storage
chlorophyll traps light energy; gives leaves and stems their green color
mitochondrion membrane-bound organelle that breaks down in plants and animals that transform energy
cytoskeleton composed of tiny rods and filaments that form a framework for the cell
microtubules thin, hollow cylinders made of proteins; associated with cell shape
microfilament thin, solid protein fibers that aid in the support of the cell
cilia short, hair-like projections used for locomotion; move in a wave-like motion
flagella long, hair-like projections used for locomotion; whip-like motion
nucleus found in eukaryotic cells; contains the cell's genetic information in the form of DNA
prokaryote/prokaryotic cell unicellular organism that lack a nucleus
eukaryote/eukaryotic cell organism whose cell contains a nucleus
cell the basic unit of life
cell theory fundamental concept of biology that states that all living things are composed of cells; that cells are the basic unit of structure nd function in living things; new cells are produced from existiing cells
organelle specialized structure that performs important cellular functions within a eukaryotic cell
cell membrane thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell; also called the plasma membrane and phospholipid bilayer
vesicle a membranous and usually fluid-filled pouch in a plant or animal cell
Created by: traceeharts
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