January 22, 2007

January 22, 2007 - January 22, 2007 Glycosidic Linkages...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
January 22, 2007 Glycosidic Linkages Polysaccharides o Huge collection of monosaccharides Starch, cellulose, and glycogen o Provide energy for an organism Break molecules down o No animal can digest cellulose Chemically modified carbohydrates o Sugar phosphates Addition of a phosphate group to one or more of the –OH sites Intermediates in energy metabolism o Amino sugars Important in the extracellular matrix Intermediates in energy metabolism o Chitin Polymer of N-acetylglucosamine N-acetyl groups provide sites for H-bonding Makes up the skeletons of insects, crabs, and lobsters Carbohydrates o Polymers of simple sugars o Provide energy for living organisms o Involved in structural support Lipids: Water-Insoluble Molecules Fats and Oils Store Energy o Triglycerides Simple lipids Fats vs. oils 2 types of building blocks Glycerol Fatty acids Saturated vs. Unsaturated Fatty Acids o Saturated – straight molecule, can pack tightly, associated with fat o Unsaturated – bent molecule, doesn’t pack as tightly, bend due to the  double bonds in one or more C=C bonds Phospholipids o One fatty acid is replaced by a phosphate-containing molecule 9
Background image of page 1

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

View Full DocumentRight Arrow Icon
January 22, 2007 o Make up cell membranes o Phosphate group is hydrophilic o Fatty acids are hydrophobic Carotenoids and Steroids o Cartenoids Lipid molecules Carotenoids give carrots and other vegetables their color
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/27/2008 for the course BIOL 2160 taught by Professor Harmych during the Spring '08 term at Toledo.

Page1 / 5

January 22, 2007 - January 22, 2007 Glycosidic Linkages...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online