This document discusses cell transport and defines key terms like turgid, lysis, hypotonic, and isotonic solutions. It explains that: 1) Plant cells placed in a hypotonic solution will become turgid but not lyse, due to their cell wall preventing lysis from occurring. 2) The cell membrane controls what enters and leaves the cell, and transport proteins facilitate both passive transport like diffusion and facilitated diffusion, as well as active transport which requires energy. 3) The cell wall structure in plant cells, but not animal cells, prevents lysis from occurring when the plant cell is placed in a hypotonic solution.

1. Warm-Up #5 – 2
 When animal cells are in a hypotonic
solution they undergo lysis. However plant
cells do not they only become turgid.
 Define turgid and lysis.
 What structure on the plant cell prevents
lysis from occurring in a hypotonic solution?

2. Turn in notes with study guide
attached to back.

3. Cell Transport ZAP
Game

4. What is the end result of
diffusion?

5. Equilibrium: the same amount of
molecules on each side of the
membrane.

6. What is the function of the cell
membrane?

7. To control what enters and
leaves the cell

8. Which direction do molecules
move in the process of diffusion?

9. From high to low concentration

10. In which type(s) of transport to
transport proteins play a role?

11. Passive (facilitated diffusion) and
Active Transport

12. What is the process called when
a cell releases wastes out of the
cell using a vesicle?

13. Exocytosis

14. What are the structures labeled
B?

15. Transport Proteins/Protein
Channels

16. What process doesn’t require any
energy from the cell?

17. Passive Transport
diffusion
facilitated diffusion
osmosis

18. What does hypertonic mean?
Which direction does water move
when a cell is in a hypertonic
solution?

19. Hypertonic: The solution has a
higher concentration than the inside
of the cell
Water will move out of the cell.

20. What is the cell membrane
composed of?

21. Two layers (bilayer) of
phospholipids

22. What are phospholipids
composed of?

23. A phosphate head and fatty acid
tails

24. What is active transport?

25. The movement of molecules
against (up) a concentration
gradient using transport
proteins.

26. What is osmosis?

27. The diffusion of water across a
semipermeable membrane.

28. What is homeostasis?

29. Maintaining a stable internal
environment by keeping internal
conditions within a limited range

30. In which direction will
water move and what will
happen to the cell?

31. Water will move out of the
cell.
The cell will shrink/get
smaller.

32. What does hypotonic mean?
Which direction does water move
when a cell is in a hypotonic
solution?

33. Hypotonic: The solution has a lower
concentration than the inside of the
cell
Water will move into the cell.

34. In which direction will water
move in the following diagram?

35. Water will move from the 20%
solution to the 40% solution (to
dilute the higher concentration
of salt solution)

36. If you place drops of food
coloring into a beaker of water,
what type of transport are you
modeling?

37. Diffusion

38. The difference of concentration
of dissolved particles from one
location to another is known as
what?

39. Concentration Gradient

40. What is facilitated diffusion?

41. The movement of molecules
down a concentration gradient
using transport proteins.

42. In which direction will
water move and what will
happen to the cell?

43. Water will move into the
cell.
The cell will swell and
possibly burst.

44. What does isotonic mean? Which
direction does water move when
a cell is in an isotonic solution?

45. Isotonic: The solution has an equal
concentration to the inside of the
cell
Water will move in and out of the
cell at an equal rate.

46. What are the structures labeled
A?

47. Phospholipids

48. In the diagram shown, molecules
are moving from low to high
concentration. What type of
transport is shown?

49. Active Transport

50. Turn in Test and answer
sheet and work in
biology workbook
ATP Introduction – Study
Workbook pages 116-118