Campbell Biology Ch 7 Study Guide
Subject:
Biology [1]
Tags:
Biology [2]
Membrane biology [3]
Cell membrane [4]
Osmosis [5]
Lipid bilayer [7]
Membrane protein [9]
Carrier protein [10]
Biological membrane [12]
Active transport [13]
health [14]
CHAPTER 7 MEMBRANE STUCTURE AND FUNCTION Membrane Structure Explain the meaning of the statement that phospholipids and most other membrane constituents are amphipathic molecules. It means that they have both a hydrophilic region and a hydrophobic region. Explain how the fluid mosaic model of a membrane is structured and the evidence that supports the model. The membrane is a fluid structure with a mosaic of various proteins embedded in or attached to a double layer of phospholipids. Using freeze-fracture to study cells under an electron microscope has shown a pattern that appears to agree with the fluid mosaic model. Describe the fluidity of the components of a cell membrane and explain how membrane fluidity is influenced by temperature and membrane composition.