{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture 3, Ch. 8

Lecture 3, Ch. 8 - Lecture#3 Date Chapter 8~ Membrane...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture #3 Date ______ Chapter 8~ Membrane Structure & Function
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Membrane structure, I Selective permeability Amphipathic~ hydrophobic & hydrophilic regions Singer-Nicolson: fluid mosaic model
Background image of page 2
Membrane Structure QuickTimeᆰ and a Cinepak decompressor are needed to see this picture.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Membrane structure, II Phospholipids ~ membrane fluidity Cholesterol~ membrane stabilization “Mosaic” Structure~ Integral proteins ~ transmembrane proteins Peripheral proteins ~ surface of membrane Membrane carbohydrates ~ cell to cell recognition; oligosaccharides (cell markers); glycolipids; glycoproteins
Background image of page 4
Membrane structure, III Membrane protein function: transport •enzymatic activity •signal transduction •intercellular joining •cell-cell recognition •ECM attachment
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Membrane traffic Diffusion ~ tendency of any molecule to spread out into available space Concentration gradient Passive transport ~ diffusion of a substance across a biological membrane Osmosis ~ the diffusion of water across a selectively permeable membrane
Background image of page 6
Diffusion QuickTimeᆰ and a Cinepak decompressor are needed to see this picture.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Osmosis QuickTimeᆰ and a Cinepak decompressor are needed to see this picture.
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}