Fluid mosaic - This is the model that biologists use to describe a membrane structure., Selective - The plasma membrane exhibits ________ permeability., Channel - This type of transport protein allows specific ion or molecules to enter or exit the cell via passive transport., Active - This type of transport protein uses ATP as energy to allow specific ions or molecules to enter to exit the cell., Enzymes - These can be a type of membrane protein and are grouped to carry out sequential reactions., Attachment - This type of membrane protein helps support the membrane and can coordinate external and internal changes., Receptor - This type of membrane protein signals molecules from the ECM and relays a message by activating other molecules inside the cell., Junction - This type of membrane protein attaches adjacent cells., Glycoprotein - This type of protein serves as an ID tag and may be recognized by proteins of other cells., Diffusion - This is the tendency of particles spreading out evenly in an available space., Osmosis - This is the diffusion of water across a selectively permeable membrane until the solute concentration on both sides is equal., Tonicity - This is a term that describes the ability of a surrounding solution to cause a cell to gain or lose water., Hypertonic - Cells shrink in this type of solution., Hypotonic - Cells swell in this type of solution., Isotonic - In this type of solution, animal cells are normal, but plant cells are flaccid., Exocytosis - This is used to export bulky molecules, such as proteins or polysaccharrides., Endocytosis - This is used to take in large molecules., Entropy - According to the laws of thermodynamics, energy cannot be created or destroyed. This increases _______ with some energy being lost as heat., Exergonic - This type of reaction releases energy., Endergonic - This type of requires energy and yield products rich in potential energy., Metabolism - This encompasses all of the chemical reactions of a cell., ATP - This powers nearly all forms of cellular work., Activation - Enzymes are catalysts that decrease the ________ energy needed for a reaction to begin., Substrate - The ________ of an enzyme fits specifically in a region of the enzyme called the active site., Competitive - This type of inhibitor reduces enzyme productivity by blocking substrate molecules from entering the active site.,

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