Slide 1

Cell Types Slide 2 Slide 3 Phospholipids Slide 4 Lipid Bilayer Slide 5 Slide 6 Slide 7 Fluid Mosaic Model Slide 8 Slide 9 Membrane Proteins Slide 10 Slide 11 Slide 12 Slide 13 Slide 14 Membrane Protein Functions Slide 15 Transport Across Membranes Small Molecules Simple Diffusion Facilitated Diffusion Active Transport Large Molecules Pinocytosis Phagocytosis Receptor-mediated endocytosis sugars amino acids nucleotides proteins viruses bacteria endocytosis exocytosis - Slide 16 Diffusion Molecules move from areas of high concentrations to areas of low concentrations. Slide 17 Diffusion Molecules move from areas of high concentrations to areas of low concentrations. Slide 18 Simple Diffusion Requires no energy Requires no proteins From high to low concentrations Small, hydrophobic molecules O 2, CO 2, steroids Slide 19 Simple Diffusion Slide 20 Facilitated Diffusion Requires no energy Requires a carrier protein From high to low concentrations Slide 21 Facilitated Transport Molecules move across a membrane through carrier proteins from high to low concentrations. Slide 22 Active Transport Requires energy Requires transport proteins From low to high concentrations Small, hydrophobic molecules Slide 23 Active Transport Slide 24 Transport Across Membranes Small Molecules Simple Diffusion Facilitated Diffusion Active Transport Large Molecules Pinocytosis Phagocytosis Receptor-mediated endocytosis sugars amino acids nucleotides proteins viruses bacteria endocytosis exocytosis - Slide 25 Endocytosis / Exocytosis Phagocytosis Pinocytosis Receptor-mediated endocytosis Slide 26 Endocytosis Phagocytosis Slide 27 Endocytosis Phagocytosis Slide 28 Amoebazoa -- Amoeba Endocytosis Phagocytosis Slide 29 Endocytosis Pinocytosis Slide 30 Endocytosis Pinoocytosis Slide 31 Endocytosis Receptor-mediated Endocytosis Slide 32 Endocytosis Receptor-mediated Endocytosis Slide 33 Endocytosis Receptor-mediated Endocytosis Slide 34 Endocytosis Slide 35 Slide 36 Exocytosis Slide 37 Slide 38 Endocytosis Slide 39 Movement of Molecule Into and Out of a Cell Small Molecules Simple Diffusion Facilitated Diffusion Active Transport Large Molecules Pinocytosis Phagocytosis Receptor-mediated endocytosis sugars amino acids nucleotides proteins viruses bacteria endocytosis exocytosis & Slide 40 Osmosis Slide 41 Slide 42 Slide 43 Slide 44 Slide 45 Slide 46 Cell Cell Junction Desomosomes = Adhesion Junctions Slide 47 Cell-to-Cell Junctions desmosomes Slide 48 Cell Cell Junction Tight Junctions = Sealing Junctions Slide 49 Cell-to-Cell Junctions tight junctions Slide 50 Cell Cell Junction Gap Junctions = Communication Junctions Slide 51 Cell Cell Junction Slide 52 Cell Walls