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PCS Liv Env

Cells - CH 7

TermDefinition
active transport the process by which cells use energy to transport molecules
cell basic unit of structure and function in living things
cell membrane thin flexible barrier around the cell; selectively permeable
cell wall rigid layer around the cell membrane of a plant cell
chloroplast uses energy from sunlight to make food molecules
chromatin granular material visible within the nucleus
cytoplasm watery material around organelles
cytoskeleton maintains cell shape with a network of protein filaments
diffusion process by which molecules of a substance move from areas of high concentration to areas of low concentration
endoplasmic reticulum assembles components of the cell membrane and modifies some proteins
eukaryote organism whose cells contain a nucleus (hint: you)
golgi bodies attaches carbohydrates and lipids to proteins using enzymes
mitochondria uses energy from food to make high energy compounds; the cell’s powerhouse
nucleus controls most cell processes and contains DNA; brain of the cell
organelle specialized structures within a cell that perform important cell functions
osmosis diffusion of water through a selectively permeable membrane
phagocytosis process by which extensions of cytoplasm engulf large particles
prokaryote organism whose cells do not contain a nucleus (hint: P = primitive)
receptor molecule receive appropriate cells and trigger some sort of response by the cell (fit together like a puzzle piece)
ribosome factories for making proteins
vacuole sac like structures for storage of water, salts, proteins and carbohydrates
Created by: cboula