cell membrane - ms....
TRANSCRIPT
![Page 1: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/1.jpg)
Cell Membrane
Chapter 7-3
![Page 2: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/2.jpg)
Function
Allows certain substances in and out of the cell Takes in food Eliminates waste Semipermeable
![Page 3: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/3.jpg)
Structure
Outside of cell
Inside of cell (cytoplasm)
Lipid bilayer – two layers of lipids Hydrophilic head – likes water, is on the
outside Hydrophobic tail – doesn’t like water, is in the
middle
Lipid Bilayer Hydrophilic head
Hydrophobic tail
![Page 4: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/4.jpg)
Structure Protein channels – transport substances Carbohydrate molecules – id tags
Outside of cell
Inside of cell (cytoplasm)
Cell membrane
Proteins
Protein channel Lipid bilayer
Carbohydrate chains
![Page 5: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/5.jpg)
Structure
Outside of cell
Inside of cell (cytoplasm)
Cell membrane
Proteins
Protein channel Lipid bilayer
Carbohydrate chains
![Page 6: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/6.jpg)
Facilitated Diffusion Diffusion with help Protein channels Tunnel through membrane Allow a specific molecule to pass through Fast and specific, doesn’t require energy Check out this video
Cell membrane
Proteins
Protein channel Lipid bilayer
Carbohydrate chains
![Page 7: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/7.jpg)
Active Transport Substance moved against the
concentration gradient Area of [low] to [high] Requires energy Special “pumps” in cell membrane Sodium/potassium pumps pump in K+
ions and pump out Na- ions Check out this video
![Page 8: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/8.jpg)
Molecule to be carried
Low Concentration
Cell Membrane
High Concentration
Molecule being carried
Low Concentration
Cell Membrane
High Concentration
Energy Energy
![Page 9: Cell Membrane - Ms. Mouillesseauxmouillesseaux.weebly.com/uploads/3/0/7/1/30713309/cell_membrane_notes.pdfCell Membrane . Chapter 7-3 . Function Allows certain substances in and out](https://reader031.vdocument.in/reader031/viewer/2022040819/5e6577e1d15ee858f142fc19/html5/thumbnails/9.jpg)
Membrane Folding action
Endocytosis-- membrane folds around and engulfs small particle Makes a vacuole Phagocytosis – cell engulfs a large
particle Exocytosis – cell spits out a particle Check out this video