1. Membrane and Transport Notes

2. Prokaryotic vs. Eukaryotic Cells
Characteristic
Prokaryotes
Eukaryotes
Size of cell
Nucleus
Membrane-enclosed organelles
Cell wall
Plasma (cell) membrane
Cytoplasm
Ribosomes
Chromosome (DNA) arrangement

3. Plasma membrane – thin flexible selectively permeable bilayer
Structure –
1. Lipid –

5. 2. Proteins – embedded in the phospholipid bilayer

6. Carbohydrates –

7. There are two main types of transport across a membrane

8. Passive Transport

9. Diffusion

10. Facilitated diffusion
Large or charged molecules can not pass through the membrane so they must pass through a carrier protein to get inside or out

11. Active Transport

12. Hypertonic – Hypotonic – Isotonic –
Solutions are referred to as one of the following:
Hypertonic –
Hypotonic –
Isotonic –