1. Cells Review (Chapter 3)

2. What are the 3 components of cell theory?
Cells come from cells
Cells are the basic unit of life
All living things are composed of cells

3. What are some differences between prokaryotic and eukaryotic cells?
Pro means no!
No nucleus, no membrane bound organelles
All single celled
Ex: bacteria
Eu is like you!
Larger and more complex than prokaryotic
Nucleus and other membrane bound organelles
Multicellular or single celled
Ex: animals, plants

4. Cell Organelles. Describe the function
Cytoskeleton
Nucleus
Endoplasmic reticulum
Ribosome
Golgi apparatus
vesicle
Mitochondria
Vacuole
Lysosome
Centriole
Cell wall
chloroplast

5. Which organelles are only found in plants?
Chloroplast
Cell wall
Large central vacuole

6. Cell Membrane What is it composed of?
Phospholipid bilayer
Describe the structure of a phospholipid
Head: polar, glycerol and phosphate group, hydrophilic
Tail: non polar, two fatty acid chains, hydrophobic
Why is the cell membrane described as selectively permeable?
Certain things can go in and out
What is the fluid mosaic model?
Flexible membrane composed of many pieces

7. Types of Passive Transport
Diffusion
Osmosis
Facilitated diffusion
What is passive transport?

8. Types of Active Transport
Endocytosis
phagocytosis
Exocytosis
What is active transport?

9. Solutions Hypertonic Hypotonic Isotonic
What would happen to a cell placed in a hypertonic solution?
Hypotonic
What would happen to a cell placed in a hypotonic solution
Isotonic