BIO130H1 Study Guide - Cell Membrane, Membrane Fluidity, Phospholipid

94 views7 pages
26 Apr 2011
School
Department
Course
Professor
ash-mr18 and 40043 others unlocked
BIO130H1 Full Course Notes
31
BIO130H1 Full Course Notes
Verified Note
31 documents

Document Summary

Plasma membrane encloses the cell, defines its boundaries, and maintains differences between the cytosol and extracellular environment. Lipid bilayer provides basic structure for all cell membranes. Phosphoglycerides, sphingolipids, and sterols and the major lipids in cell. 50% of animal cell membranes are lipids: 109 lipid molecules in plasma membrane of small animal cell. All lipid molecules in cell membranes are amphiphilic: hydrophobic water- fearing nonpolar end, hydrophilic water- loving polar end. A combination of different head groups and fatty acids create different phosphoglycerides: eg. phoshatidylethanolamine, phosphatidylserine, phosphatidylcholine. Another important phospholipid is sphingomyelin ; built from sphingosine instead of glycerol www. notesolution. com: long acyl chain with an amino group (nh2) and two hydroxyl groups (oh) at one end. Cholesterol is a sterol ; contains a rigid ring structure, to which a polar hydroxyl group and a short non-polar hydrocarbon chain is attached.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers

Related textbook solutions

Related Documents

Related Questions