Cell Membrane Dynamics and Transport: Fluid Mosaic Model (Phospholipid Bilayer with Embedded Proteins), Selective and Semi-Permeable Membrane Properties, Diffusion, Facilitated Diffusion, Osmosis, Endocytosis and Exocytosis, Hypertonic, Hypotonic, and Iso

Cell Membrane Dynamics and Transport: Fluid Mosaic Model (Phospholipid Bilayer with Embedded Proteins), Selective and Semi-Permeable Membrane Properties, Diffusion, Facilitated Diffusion, Osmosis, Endocytosis and Exocytosis, Hypertonic, Hypotonic, and Isotonic Solutions, Osmotic Pressure, Cellular Metabolism and Energy, Enzyme Structure and Function (Active Site, Biological Catalysts), Prosthetic Groups, Competitive and Non-Competitive Inhibition, Photosynthesis (Conversion of Light Energy to Chemical Energy in Sugars), Mechanisms of Molecular Transport Across Membranes, and Enzyme Regulation Exam 2 Verified Questions Provided with Complete A+ Graded Rationales Latest Updated 2026 fluid mosaic model The currently accepted model of cell membrane structure, depicting the membrane as a mosaic of diverse protein molecules embedded in a fluid bilayer of phospholipid molecules selective permeable A property of biological membranes that allows some substances to cross more easily than others and block the passage of other substances altogether semi-permeable diffusion The random movement of particles that results in the net movement of a substance down to its concentration gradient from a region where it is more concentrated to a region where it is less concentrated facilitated diffusion The passage of a substance through a specific transport protein across a biological membrane down to its concentration gradient osmosis The diffusion of free water across a selectively permeable membrane endocytosis The cellular uptake of molecules or particles via formation of new vesicles from the plasma membrane exocytosis