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13 Cards in this Set
- Front
- Back
Activation energy
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Minimum amount of energy needed for reactants to form products in a chemical reaction
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Cytoplasm
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Semi fluid material inside the cells plasma membrane
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Cytoskeleton
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Supporting network of protein fibers that provide a framework for the cells within the cytoplasm
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Endoplasmic reticulum
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Highly folded membrane system in eukaryotic cells that is the site for protein and lipid synthesis
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Enzyme
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Protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction
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Eukaryotic cells
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Unicellular organisms with membrane bound nucleus and organelles; general larger and more complex than a prokaryotic cell
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Prokaryotic cells
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Microscopic unicellular organism without a nucleus or other membrane bound organelles
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Fluid mosaic model
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A plasma membrane with components constantly in motion, sliding past one another without the lipid bilayer
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Ribosome
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Simple cell organelle that helps manufacture proteins
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Phospholipid Bilayer
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Plasma membrane layers composed of phospholipid molecules arrange with polar heads facing the outside and nonpolar tails facing the inside
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Nucleus
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Center of an atom; contains neutrons and protons. in eukaryotic cells, the central membrane-bound organelle that manages cellular functions and contains DNA.
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Selective permeability
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Properly of the plasma membrane that allows it to control movement of substances into or out of the cell
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Transport proteins
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Protein that move substances or wastes through the plasma membrane
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