University:
Mississippi College
Course:
BIO 305 | Cell Biology
Academic year:

2022
Views:

397

Pages:

1
Author:

Abby D.

Ch.4membrane proteins and lipids generally interact noncovalentlyThe polar of charged regions of proteins interact w/ the chargedheads of pinosphollpidsThe nonpolar hydrophobic regions of bothinteract.3 Types of membrane Proteins:Integral membrane proteins: embedded in the phospholipid bilayerboth hydrophobic regions exposed that intract w/ the interiorand the other inter acts with the H2O environment external.Anchored membrane proteins: covalently attatened to fatty acidsor other lipid groupsnot exposed hydrophobic regions.The hydrophobic lipid groups irert in the phospholipid bilayerand hold these proteins in association M the membraneLoons iok of membranePeripreral membrone Proteins: lack exposed hydrophobic groupsnot in the bilagerThey have polor or charged regions thatinteract w/ exposed parts of integral membrane proteinsor the charged heads.onside ofn membrane.Trans membrone protein- integral membrane protein pit extends allthe way through the phospholipid bilayer then potrades on bothSides.diff inner and Outer functionsWhen proteins mergemovement can be limited bcs the proteins areenchored to Other erements of the cell.they're attatehed to cytoskeieten elementscarb membraneshelp in cell recognitionProteoglycons - many carbohydrate residues outside of the cell react w/swostances in the external environment.chains of monosacchoride concreate linear or bronched Structuresthat repsin cell to cell communication and cell adhesion,