1. Transport

2. Transport Title the next blank page in your notebook:
Make sure you put it in your table of contents
Underneath the title write:
EQ: How do cells contain homeostasis?

3. Room Spray activity In your journal answer the following question:
Explain how students on the opposite side of the room were able to smell the spray.

4. How does the cell membrane regulate what enters and leaves the cell?
Semi-permeable – lets some things in and out of the cell, but not all things
Passive Transport – does NOT require energy
Active Transport – does require energy (ATP)

5. What is a solution?
A solution is a homogeneous (all the same) mixture of 2 or more substances

6. What makes up a solution?
The solute is the substance being dissolved (disappearing into) the liquid
The solvent is the liquid that does the dissolving
In living organisms, water is always the solvent

7. Examples of Solutions Salt water is a solution Koolaid is a solution
What is the solute?
What is the solvent?
Koolaid is a solution
Can you think of another solution?

8. What is concentration?
Concentration is the amount of solute that is dissolved in the solvent (water)
12% solution = 12% solute and 88% solvent
Concentration is increased by adding more solute to the solution
Concentration is decreased by adding more solvent to the solution

9. How do particles want to move?
Particles want to move from a HIGH concentration to a LOW concentration
Particles travel across a concentration gradient
Concentration gradient = where the concentration of something changes

10. Cellular Transport Foldable
While holding the paper in Landscape orientation, fold your sheet of paper along the long edge (hot dog) but leave about 1cm (one finger width) at the bottom of the page

11. Cellular Transport Foldable
Write “Cellular Transport” at the bottom of the page (the 1cm section)

12. Cellular Transport Foldable
Open the page back up

13. Cellular Transport Foldable
Cellular Transport
Fold the page along the short edge, BUT JUST crease the upper portion in half (crease down the blue line)

14. Cellular Transport Foldable
Fold each edge into the middle upper fold you just made and crease only in the upper section again

15. Cellular Transport Foldable
Cut along the blue lines in the picture so that you have 4 flaps

16. Cellular Transport Foldable
Simple Diffusion
Facilitated Diffusion
Osmosis
Active Transport
Cellular Transport
Label the outside flaps with “Simple Diffusion”, “Osmosis”, “Facilitated Diffusion”, and “Active Transport”

17. Picture for Simple Diffusion (Inside Upper Flap)
Draw this picture on the upper inside flap for simple diffusion

18. Simple Diffusion (Inside Lower Flap)
Diffusion – ALWAYS moves solutes from HIGH concentration -> LOW concentration (down the concentration gradient)
Allows molecules to move through the membrane without help
NEVER needs energy (ATP)

19. Simple Diffusion (Inside Lower Flap)
Examples:
Perfume/cologne will diffuse through the entire room when someone sprays it
If the room catches on fire, the students will diffuse from inside (high concentration) to outside (low concentration)
A child going down a slide is like moving down the concentration gradient

20. Picture for Facilitated Diffusion (Inside Upper Flap)
Draw this picture on the upper inside flap for facilitated diffusion

21. Facilitated Diffusion (Inside Lower Flap)
Facilitated diffusion – ALWAYS moves from HIGH concentration -> LOW concentration (down the concentration gradient)
REQUIRES a helper transport protein to get solute molecules across the membrane
NEVER needs energy (ATP)

22. Facilitated Diffusion (Inside Lower Flap)
Solute molecules are either too BIG or too HYDROPHILIC to cross the membrane
Transport proteins act as a tunnel for solutes to travel through

23. Picture for Osmosis (Inside Upper Flap)
Draw this picture on the upper inside flap for osmosis

24. Osmosis (Inside Lower Flap)
Osmosis = movement of WATER across a membrane
ALWAYS moves from HIGH concentration to LOW concentration (down the concentration gradient)
NEVER needs energy

25. Osmosis (Inside Lower Flap)
REQUIRES a helper transport protein to get WATER across the membrane
Water molecules are not easy to move across a membrane but ALL CELLS NEED WATER

26. Picture for Active Transport (Inside Upper Flap)
Draw these 2 pictures on the upper inside flap for active transport

27. Active Transport (Inside Lower Flap)
ALWAYS moves from LOW concentration -> HIGH concentration (AGAINST the concentration gradient)
ALWAYS requires energy (ATP) and a helper transport protein to get solutes across the membrane
2 types:
Endocytosis – cell takes in particles
Exocytosis – cell pushes particles out

28. Active Transport (Inside Lower Flap)
EX: If a club (cell) is full and a person (solute) wants to try and get in they have to PAY (ATP) the bouncer (protein) to get in
ONLY ONE THAT REQUIRES ENERGY

29. Tonic Solution Concentration Foldable
While holding the paper in Landscape orientation, fold your sheet of paper along the long edge (hot dog) but leave about 1cm (one finger width) at the bottom of the page

30. Tonic Solution Concentration Foldable
Write “Tonic Solution Concentration” at the bottom of the page (the 1cm section)

31. Tonic Solution Concentration Foldable
Open the page back up

32. Tonic Solution Concentration Foldable
Fold the page into thirds along the short edge, BUT JUST crease the upper portion in half (crease down the blue line)

33. Tonic Solution Concentration Foldable
Cut along the blue lines in the picture so that you have 3 flaps

34. Tonic Solution Concentration Foldable
Hypertonic
Isotonic
Hypotonic
Tonic Solution Concentration
Label the outside flaps with “Hypertonic”, “Isotonic”, and “Hypotonic”

35. Picture for Hypertonic solution (Upper Inside Flap)
Draw this picture on the upper inside flap for hypertonic

36. Hypertonic Solution (Lower Inside Flap)
Hyper = little kids are hyper = small
A hypertonic environment is a higher concentration than the cell
Water will leave the cell
Animal cells will shrivel, may die
Plant cells plasmolyze and are likely to die

37. Picture for Isotonic Solution (Upper Inside Flap)
Draw this picture on the upper inside flap for isotonic

38. Isotonic Solution (Lower Inside Flap)
Iso= same
An isotonic environment is the same concentration as the cell
No net movement of water
Animal cells are at equilibrium (same)
Plant cells are flaccid (limp)

39. Picture for Hypotonic Solution (Upper Inside Flap)
Draw this picture on the upper inside flap for hypotonic

40. Hypotonic Solution (Lower Inside Flap)
Hypo = hippo = big/fat
A hypotonic environment is a lower concentration than the cell
Water will come into the cell
Animal cells will swell and may lyse (burst)
Plant cells are turgid (happy) with pressure against the cell wall

41. Example Which way is CO2 going to move? Which way is O2 going to move?
Which way is glucose going to move?
3 CO2
50 O2
70 Glucose
45 CO2
20 O2
70 Glucose

42. Transport Cards Make this chart in your notes: Environment Cell # A
Glucose
Movement?
Type of environment: B
Oxygen C
CO2 D

43. Transport Cards You will be working in groups of 2 or 3
You will pick 3 different cells out of your pile and write the number on each column
Pull out the 4 environment cards
Say which way things are moving for each cell
Is it in a hypertonic, hypotonic, or isotonic environment?