Chapter 8 Flashcards
structural components of lipid membranes consist of
two hydrophobic tails and a hydrophilic head group
phosphatidate
glycerol-3-phosphate + 2 fatty acids = phosphatidate
lipids in plant cells
galactolipids , also can contain sulfolipids
spingolipids are derived from
the molecule sphingosine - a long chain amino alcohol
three classes of sphingolipids
-sphingomyelins, cerbrosides, gangliosides
explain that phospholipids and sphingolipids are constantly recycled in the cell
the bonds connecting fatty acid chains and the polar headgroups to the backbone are cleaved by enzymes called lipases
the membrane lipids of archaebacteria contain
long chain hydrocarbons linked to either end to glycerol
steroids are lipids and serve
as precursors for many biologically active products
phosphatidylinositols act as
intracellular signals
eicosanoids are
paracrine hormones and acts on cells near point of production
