8 Transport part I .pdf

File information


Original filename: 8 Transport part I.pdf
Title: Cell Structure and Function
Author: Technology Education

This PDF 1.5 document has been generated by Microsoft® Office PowerPoint® 2007, and has been sent on pdf-archive.com on 13/09/2011 at 21:43, from IP address 24.172.x.x. The current document download page has been viewed 1109 times.
File size: 3 MB (29 pages).
Privacy: public file


Download original PDF file


8 Transport part I.pdf (PDF, 3 MB)


Share on social networks



Link to this file download page



Document preview


The Cell Membrane
and Movements of
Molecules

The Plasma Membrane


The Plasma Membrane (aka cell
membrane)
 Boundary between the cell and its
environment
 Controls what enters and leaves the
cell--- performing homeostasis
 Has selective permeability- the ability
to allow some molecules through the
membrane -but not others
(aka semi-permeability)

Plasma
Membrane

Water

Plasma Membrane Structure

Fluid Mosaic Model
describes the structure of the plasma
membrane
 Fluid: Phospholipids
 Polar head- loves water
 2 Fatty acid tails- avoid water


Fluid Mosaic Model


Phospholipids in water form a
double layer “sandwich” with tails
pointing in

Fluid Mosaic Model


The sandwich forms a hollow
sphere with an inside and an
outside

Fluid Mosaic Model


The phospholipids are considered
“fluid” because they can move
throughout the membrane.

Fluid Mosaic Model


Mosaic: Proteins
 embedded in the phospholipid
bilayer


Related documents


8 transport part i
review topics quiz 1 bio 110 study guide complete 2
defin docx 1
1 general bacteriology
7 cell structures
jdit 2016 0618 021

Link to this page


Permanent link

Use the permanent link to the download page to share your document on Facebook, Twitter, LinkedIn, or directly with a contact by e-Mail, Messenger, Whatsapp, Line..

Short link

Use the short link to share your document on Twitter or by text message (SMS)

HTML Code

Copy the following HTML code to share your document on a Website or Blog

QR Code

QR Code link to PDF file 8 Transport part I.pdf