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Cell Transport

Cell Transport. Notes and Foldables. The first part of the powerpoint should go in your notebook Don’t forget CORNEL STYLE NOTES When you start making the foldable the rest of the powerpoint will go in there. Vocabulary.

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Cell Transport

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  1. Cell Transport

  2. Notes and Foldables • The first part of the powerpoint should go in your notebook • Don’t forget CORNEL STYLE NOTES • When you start making the foldable the rest of the powerpoint will go in there.

  3. Vocabulary • Hydrophobic – molecule that does NOT want to be around water ** NONPOLAR (ex: oil) • HATES WATER • Hydrophilic – molecule that wants to be around water -** POLAR (ex: sugar, salts, other waters) • LOVES WATER

  4. Phospholipids • Draw this diagram in your notes Phosphate Head HYDROPHILIC “Loves Water” HYDROPHOBIC “Hates Water” Lipid Tails

  5. Cell (or Plasma) Membrane PhospholipidBilayers – lipid layers creates a water proof boundary for the cells (Pink Area)

  6. Cell (or Plasma) Membrane * Cell membranes control what enters or leaves the cells

  7. Vocabulary • Solute – a molecule that is being dissolved • Ex: salt or sugar will dissolve in water NOTICE: look how the water molecules orient themselves to the + or – solute ions Na+ (Sodium Ion) Cl- (Chlorine Ion)

  8. Vocabulary • Solvent – a molecule that can dissolve something • Ex: Water (the universal solvent)

  9. Vocabulary • Solution – made up of solvent and solutes Solute Solute Water Solute

  10. Vocabulary • Concentration Gradient – the difference between molecules (green hexagons) on opposite sides of membrane

  11. Notice the difference between HIGH concentration and LOW concentration High Concentration Low Concentration

  12. IF they can, molecules will ALWAYStry to equal out on both sides High Concentration Low Concentration

  13. Vocabulary • Equilibrium – when solute amounts are EQUAL everywhere (usually referring to both sides of a membrane) High Concentration Low Concentration

  14. New Foldable Manipulative Make a NEW 4 tab foldable. • You can either use the Old method we used for the Carbon Compound Manipulative OR • You can make the new one drawn on the board. I created mine with the new design but you do not have to if you do not want to.

  15. New 4 Flap foldable model While your paper is landscape, fold the top down until it is about 2 cm from the bottom (about your thumbs width)

  16. Fold your paper in half, then in half again to get the fold lines for the cuts First fold Second fold

  17. You should have 3 folds that when cut will give you 4 flaps

  18. Label the bottom of the page with the 4 types of transport: DiffusionFacilitated DiffusionOsmosisActive Transport FacilitatedDiffusion Osmosis ActiveTransport Diffusion

  19. Picture for DiffusionCover Flap HIGH Concentration LOW Concentration

  20. Diffusion (Inside flap info) • (Vocabulary) Diffusion - ALWAYS moves solutes from High Concentration  Low Concentration(Down the concentration gradient) • Simple diffusion allows molecules to move through the phospholipidbilayer without needing help. • Diffusion NEVER needs energy (ATP)

  21. Diffusion (Inside flap info) • Examples: • 1) perfume/cologne will diffuse through the entire room when someone sprays it. • 2) if the room catches on fire, the students will diffuse from inside (High concentration) to outside (Low concentration) of students • 3) a child going down a slide is like moving down the concentration gradient.

  22. Picture for Facilitated DiffusionCover Flap HIGH Concentration LOW Concentration

  23. Facilitated Diffusion (Inside flap info) • Facilitated Diffusion ALWAYS moves from High Concentration  Low Concentration(Down the concentration gradient) • (Vocabulary) Facilitated diffusion - REQUIRES a helper transport protein to get solute molecules across the phospholipidbilayer. • Facilitated Diffusion NEVER needs energy (ATP)

  24. Facilitated Diffusion (Inside flap info) • The solute molecules are either Too BIG or Too HYDROPHILIC to cross the lipid area of the phospholipidbilayer • Transport proteins act as a tunnel that solutes travel through.

  25. Picture for OsmosisCover Flap HIGH Concentration LOW Concentration

  26. Osmosis (Inside flap info) • Osmosis ALWAYS moves from High Concentration  Low Concentration(Down the concentration gradient) • Osmosis REQUIRES a helper transport protein to get WATER molecules ( ) across the phospholipidbilayer. • Osmosis NEVER needs energy (ATP)

  27. Osmosis (Inside flap info) • (Vocabulary) Osmosis – Movement of water across a membrane • Water molecules will never be able to easily cross the lipid area of the phospholipidbilayer, but ALL CELLS NEED WATER • Aquaporin is the transport protein that acts as a tunnel that solutes travel through.

  28. Picture for Active TransportCover Flap • NOTICE: There are two pictures for Active Transport. Put one picture above the other on the front flap… Picture 1 Picture 2

  29. Picture 1 for Active TransportCover Flap HIGH Concentration ATP LOW Concentration

  30. Picture 2 for Active TransportCover Flap HIGH Concentration LOW Concentration

  31. Active Transport (Inside flap info) • Active Transport ALWAYS moves from LOW Concentration  HIGH Concentration(AGAINST the concentration gradient) • (Vocabulary) Active Transport- ALWAYS REQUIRES ENERGY (ATP) and a helper transport protein to get solute molecules across the phospholipidbilayerAGAINST the concentration gradient • Active Transport ALWAYS needs energy (ATP)

  32. Active Transport (Inside flap info) • Ex: Think of a bouncer at a popular club. When the cell (club) is full, and a solute (person) wants to try and get in, they have to PAY the bouncer to let them “sneak” by. Money would be like the cell paying ATP energy to make the protein channel (bouncer) let the solute (person) in.

  33. Active Transport (Inside flap info) • Active Transport is the only kind of cell movement that REQUIRES energy to work.

  34. If time permits… • Write down 2 questions over anything that was covered in today’s notes. • You’ll have 5 minutes to do this… • When everyone has 2 questions, the teacher will pick someone to start… • That person will pick someone who HAS NOT answered a question yet. • The first person picked for the day can pick anyone to answer…

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