BIO-1801 Lecture Notes - Lecture 9: Transmission Electron Microscopy, Glycoprotein, Endomembrane System

48 views4 pages
School
Department
Course
Professor

Document Summary

Framework of the membrane is the phospholipid bilayer. Phospholipids are amphipathic molecules: hydrophobic (water-fearing) region faces in, hydrophilic (water loving) region faces out. Membranes also contain proteins and carbohydrates: relative amount of each vary. Membrane is considered a mosaic of lipid, protein, and carbohydrate molecules. Membrane exhibits properties that resemble a fluid because lipids and proteins can move relative to each other within the membrane. Integral or intrinsic membrane proteins: transmembrane proteins. One or more regions that are physically embedded in the hydrophobic region of the phospholipid bilayer: lipid-anchored protein. Covalent attachment of a lipid to an amino acid side chain within a protein. Peripheral membrane or extrinsic proteins: noncovalently bound to regions of integral membrane proteins that project out from the membrane, or they are bound to the polar head groups of phospholipids. Fluidity- individual molecules remain in close association yet have the ability to readily move within the membrane.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related textbook solutions

Related Documents

Related Questions