AP Biology
In Class Notes Unit 2; Lecture 1 Note
Set 10 Cell Membrane Structure
Amphipathic
Proteins
Hydrophilic region
of protein
Hydrophobic region of protein
Phospholipid
Membrane
Protein Functions
Enzymes
Signal
Receptor
ATP
Membrane
Protein
Functions
Glyco-protein
Fluid Mosaic Model
and Phospholipids
Lateral movement
(~10
7times per second)
Flip-flop
(~ once per month)
Digestive Tract
Villi and Microvilli on
the interior of the small
intestine
Key Nutrient absorption Microvilli (brush border) Epithelial cells Lacteal Lymph vessel Villi Large circular folds Epithelial cells Blood capillaries Vein carrying blood to hepatic portal vesselMuscle layers
Villi