Color background blue to represent water Color the glycerol heads green.

1. Color background blue to represent water Color the glycerol heads green. Label them “hydrophilic.” Color the fatty acid tails red. Label them “hydrophobic.”

2. Cell Membrane (Transport) Notes Cell Membrane: • ALLcells have a cell membrane made of lipids, proteins, and carbohydrates. protein channel Layer 1 Cell Membrane Layer 2 lipid bilayer protein pump Cell Membrane Cell Wall • SOME cells (i.e. plants and bacteria) have cell membranes andcell walls A B

3. Function of the Cell Membrane: • Cell membrane separates the components of a cell from its environment—surrounds the cell • “Gatekeeper” of the cell—regulates the flow of materials into and out of cell—selectively permeable • Cell membrane helps cells maintain homeostasis—stable internal balance

4. Passive Transport A process that does not require energy to move molecules from a HIGH to LOW concentration • Diffusion • Facilitated Diffusion • Osmosis

5. outside of cell inside of cell • Diffusionis the movement of small particles across a selectively permeablemembrane like thecell membrane until equilibrium is reached. These particles move from an area of high concentrationto an area of low concentration.

6. Diffusion starts at an area of... High Concentration = thumbs up Low Concentration = thumbs down

7. Osmosis is the diffusion of water through a selectively permeable membrane like the cellmembrane Water diffuses across a membrane from an area of high WATER concentration to an area of low WATER concentration. Why is the water rising on the right side? What is it trying to achieve?

8. Homeostasis = Balance

10. Osmosis is the movement of Molecules = thumbs up Water (H20) = thumbs down

11. Glucose molecules outside of cell inside of cell • Facilitated Diffusion is the movement of larger molecules like glucose through the cell membrane. The larger molecules must pass through protein channels.

12. Why are protein channels needed for glucose molecules? Click

13. Passive Transport ____ _____: the movement of particles down the concentration gradient from a ______ to a _____ concentration. Diffusion continues until the concentration of the molecules reach __________ (balance). • Simple diffusion • high • low • homeostasis

14. Passive Transport Simple diffusion: the movement of particles down the concentration gradient from a high to a low concentration. Diffusion continues until the concentration of the molecules reach homeostasis (balance).

15. Passive Transport _____ ______: diffusion of molecules across the cell membrane through _______. Facilitated diffusion is faster than simple diffusion. Though the proteins help the molecules cross the cell membrane, it still requires no energy and is classified as ____ transport. • Facilitated diffusion • Proteins • Passive

16. Passive Transport Facilitated diffusion: diffusion of molecules across the cell membrane through proteins. Facilitated diffusion is faster than simple diffusion. Though the proteins help the molecules cross the cell membrane, it still requires no energy and is classified as passive transport.

17. To Do... • Glue cell membrane to pg 20 • GlueCellular transport notes to 21

18. Warm Up Topic: Cellular Transport Look at the diagram of a cross-section of a cell membrane below. The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane? A. simple osmosis B. active transport C. simple diffusion D. facilitated diffusion

19. Warm Up 10/20/17 Topic: cellular transport Look at the diagram of a cross-section of a cell membrane below. The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane? A. simple osmosis B. active transport C. simple diffusion D. facilitated diffusion

20. Osmosis Notes (pg 50) Osmosis: the movement of water from a high water concentration to a low water concentration

21. Types of solutions Hypertonic:a solution in which a higher solute concentration and less water cause the cell to shrink

22. Types of solutions Isotonic: a solution in which water molecules and solute molecules are EQUAL; does not change the shape of the cell

23. Types of solutions Hypotonic: a solution that causes the cell to swell because of its low solute concentration and high water concentration

24. Osmosis Egg Lab pg 52 Question: What will happen when the egg is soaked in (water/syrup)? Hypothesis: If the egg is soaked in (water/syrup) for two days, then _________________________ Evidence: Conclusion

25. Osmosis Egg Lab pg 52 Analysis Questions: • How did the results compare to your pre-lab predictions? • Which of the solutions were hypertonic? What is your evidence? • Which of the solutions were hypotonic? What is your evidence?

26. For today’s warm up • You need a chromebook. (Use both hands when carrying chromebooks). • Sign in to google classroom. • Click the link that has your warm up for 10/24/17. • Write the question and answer on your warm up handout. • Turn homework into the black tray.

27. Active Transport Active transport is the movement of molecules from LOW to HIGH concentration. Energy is required as molecules must move against the concentration gradient. outside of cell Carbon Dioxide molecules inside of cell high concentration low concentration

28. Does active transport require energy? Yes, active transport requires energy = thumbs up No, active transport does not require energy = thumbs down

30. ENERGY NEEDED: Active Transport NO ENERGY NEEDED: Diffusion Osmosis Facilitated Diffusion ANALOGY: HIGH (HIGH CONCETRATION) Passive Transport LOW ( LOW CONCENTRATION)

31. What type of passive transport is this showing? What type of passive transport is this showing? Simple diffusion Facilitated diffusion

32. Endocytosis and Exocytosis is the mechanism by which very large molecules (such as food and wastes) get into and out of the cell Food is moved into the cell by Endocytosis Wastes are moved out of the cell by Exocytosis

33. Types of Endocytosis Pinocytosis: takes in fluids (“cell drinking”) Phagcytosis:takes in large molecules (“cell eating”)

34. Sodium potassium pump move molecules across the cell membrane from low concentration to high concentration

35. Where does exocytosis move the molecules? Into the cell = thumbs up Out of the cell = thumbs down

36. White Blood Cells, which are part of the immune system, surround and engulf bacteria by ______________. endocytosis

37. Interactive Red Blood Cell Click

38. Hypertonic Solutions: contain a high concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypertonic solution, the water diffuses out of the cell, causing the cell to shrivel. Hypotonic Solutions: contain a low concentration of solute relative to another solution (e.g. the cell's cytoplasm). When a cell is placed in a hypotonic solution, the water diffusesinto the cell, causing the cell to swell and possibly explode. Isotonic Solutions: contain the same concentration of solute as another solution (e.g. the cell's cytoplasm). When a cell is placed in an isotonic solution, the water diffusesinto and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic.

39. Fact or Fib? You’ll hear a statement. Decide if it is a fact (true) or a fib (false). Wait until I say “show me” before you hold your card up.

40. Fact or Fib? • Active transport requires energy. 2. Endocytosis moves molecules out of the cell. 5. Osmosis is the movement of salt molecules. 3. Water moving into the cell causes it to shrink. 4. Passive transport moves molecules from high to low concentration. 6. Moving molecules from low to high energy does not require energy. 7. Phagocytosis causes a cell to “eat” a large molecule

41. Active Transport phagocytosis into cell eating out cell drinking pinocytosis exocytosis high low energy energy ATP proteins against endocytosis

42. Active Transport Cells must use energy to move molecules across the cell membrane from an area of low concentration to an area of high concentration. This causes molecules to move against the concentration gradient. Active transport requires energy (ATP) and the help of transport proteins.

43. Active Transport Endocytosis - the process of taking liquids or fairly large molecules into a cell. The molecule is captured by the cell membrane, formed into a vesicle, and broken down by lysosomes.

44. Active Transport Phagocytosis- a type of endocytosis that engulfs large particles. DUring phagocytosis bacterial molecules can be captured and destroyed. “cell eating” Pinocytosis- a type of endocytosis that takes in liquid droplets. “cell drinking”

45. Active Transport Exocytosis- the release of the substance out of the cell. The vesicle connects to the cell membrane and releases the unnecessary contents.

46. Go to... https://quizlet.com/live

47. Brain pop video

48. Anchor Charts Osmosis, diffusion, facilitated diffusion, endocytosis, exocytosis, pinocytosis, phagocytosis Each project needs: definition example/model/picture real world example lots of color and creativity :)

49. Warm Up 10/18/17 Topic: cell membrane Which of the following does not describe the cell membrane? • semi-permeable • made of phospholipids • has proteins embedded within • has nucleic acids sticking out of membrane

50. Warm Up 10/18/17 Topic: cell membrane Which of the following does not describe the cell membrane? • semi-permeable • made of phospholipids • has proteins embedded within • has nucleic acids sticking out of membrane