1. Cell Transport Vocabulary Chapter 7, Section 3
Solution
Solute
Concentration
Diffusion
Equilibrium
Osmosis
Isotonic
Hypertonic
Hypotonic
Osmotic pressure
Protein channels
Facilitated diffusion
Active transport
Endocytosis
Phagocytosis
Pinocytosis
Exocytosis

2. A: Orange
B. Orange
C. Yellow
D. Black
E. Gray
F. none
G: Red
H: Light blue
I: Brown
J: Pink
K: Blue
L: Green
M: Pink
N: Black
O: Green
P: Purple
Q: none

3. Plant cell coloring: A: light green K: yellow B: dark green L: red
C: yellow M: brown
D,D1: light blue N: black
E: dark blue O: pink
F. green P: blue
G: gray Q: none
H: orange R: light purple
I: red S: dark purple
J: black

4. Cell Boundaries
Chapter 7 – Section 3

5. Cell Membrane Found in all cells 2 jobs
Shows selective permeability by deciding what can enter/leave cell
Provides protection and support

6. Composition Lipid bilayer
Protein channels are embedded in lipid bilayer; allow large particles to move in/out of cell

7. Cell Wall Found in all plants, bacteria, fungi and some protists
Job is to provide support and protection for cell

8. Composition Plant cell wall is made of cellulose
Fungus cell wall is made of chitin
Some protists have one made of cellulose
Some bacteria have one made of peptidoglycan

9. Diffusion particles move from high concentration to low concentration
Does NOT require energy – passive transport
Movement continues until equilibrium is reached (p. 184 – figure 7-14)

10. Osmosis Movement of WATER across cell membrane
Cell membrane is selectively permeable – it allows certain materials in/out

11. Types of Solutions
Isotonic – concentration of water and solute is same on both sides of membrane; equilibrium has been reached
Hypertonic – more water inside cell than out; water will leave cell, trying to dilute the solution on outside. Cell will shrink/die

12. Hypotonic – more water outside cell than in; water will enter cell, trying to dilute the solution. Cell will swell and possibly burst

13. Plasmolysis Occurs in plant cells when large vacuole loses water
Plant wilts due to loss of turgor pressure
Intake of water refills vacuole

14. Facilitated Diffusion
Facilitate – Means “to help”
molecules (like glucose) are too large to diffuse across membrane
Use PROTEIN CHANNELS in lipid bilayer to move in/out
Still passive transport, no energy required
P figure 7-17

15. Active Transport Energy IS required for large molecules to move in
Moving from low to high concentration
Against the concentration gradient
2 types

16. Endocytosis
– cell engulfs substance; forms vacuole around it; can be either by:
Phagocytosis – take food into the cell
Pinocytosis – take in water

17. Exocytosis

18. IAN pages 13, 14, and 15 (page 186 in textbook)
PAGE 13 TITLE: Isotonic
Define, draw animal and plant cell
PAGE 14 TITLE: Hypertonic
PAGE 15 TITLE: Hypotonic