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Bio-Unit2-Cell Bio

Bio-Unit2-Cell Bio - organelles and organization

TermDefinition
ACTIVE TRANSPORT Movement of molecules from an area of lower concentration to an area of higher concentration; MUCH energy needed
Cell Basic unit of structure and function in living things
Centrioles An organelle that helps with cell division in animal cells; eukaryotes only
Channel Protein a protein that allows the transport of specific substances across a cell membrane
Cloroplast An organelle found in plant and algae cells where photosynthesis occurs; eukaryotes only
Cytoplasm A watery fluid inside the cell where organelles are located and many chemical reactions take place; found in ALL cells
Diffusion Movement of molecules from an area of higher concentration to an area of lower concentration; NO energy needed
Endocytosis process by which a cell takes large material into the cell
Eukaryote A type of advanced cell that contains a nucleus and membrane bound organelles
Exocytosis process by which a cell releases large material out of the cell
Facilitated Diffusion When membrane proteins are required for diffusion to take place since molecules are too large and/or polar to cross on their own
Golgi Apparatus Stack of membranes that modifies, sorts, and packages proteins to GO out of the cell; eukaryotes only
Hypothesis testable statement
Lysosome Organelle filled with enzymes to break down certain materials in the cell; eukaryotes only
Mitochondria An organelle where cellular respiration (energy production) occurs; eukaryotes only
Nucleolus Found inside the nucleus and produces ribosomes; eukaryotes only
Nucleus Control center of the cell; eukaryotes only
Organ group of tissues that work together for a specific function.
Organ System group of organs that work together to perform a specific function
Organelle specialized non-living structure that performs specific cell functions
Organism Any living thing; can be unicellular or multicellular
Osmosis diffusion of water across a membrane
Plasma Membrane Also called cell membrane or phospholipid bilayer; controls what enters and leaves any cell; found in ALL cells
Prokaryote simple cell with no nucleus or membrane bound organelles (bacteria)
Ribosome site of protein synthesis; found in ALL cells
Rough Endoplasmic Reticulum Portion of the ER covered with ribosomes to make membrane and secretory proteins; eukaryotes only
Scientific Law a rule that describes a pattern in nature
Scientific Theory a well-tested explanation for a set of observations or experimental results
Smooth Endoplasmic Reticulum Portion of the ER with no ribosomes responsible for producing lipids; eukaryotes only
Tissue Group of similar cells that perform a specific function.
Created by: tejneckyc
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