Ch5 - K101: Chapter 5, Part I The Structure and Function of...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: K101: Chapter 5, Part I The Structure and Function of Macromolecules Major Concepts: …mmm mmm good! 5.1 Macromolecules are polymers, built from monomers 5.2 Carbohydrates = fuel and building material Mono saccharides: Glucose, Frucose, Galactose… Di saccharides: Maltose, Sucrose, Lactose Poly saccharides: Starch, Cellulose Mother Nature didn’t make ‘em: Splenda, Rayon … 5.3 Lipids = a diverse group of hydrophobic molecules Tri acylglycerides: Fats and oils Di acylglycerides: Phospholipids Non-glycerol lipids: Steroids Mother Nature didn’t make ‘em: Crisco, Olestra… (Part II) 5.4 Proteins = many structures, wide range of functions Amino Acids and Peptide Bonds Protein Folding - 4 levels of structure 5.5 Nucleic acids = store and transmit hereditary information Nucleotides A, C, G, T 2 beautiful polymers : DNA and RNA! (Note: Objectives are on last slide of Ch 5 Part II powerpoint…next!) Enzyme A Enzyme B Monomer Monomer Dimer / Polymer Figure 5.2 The synthesis and breakdown of macromolecules Monomers are assembled to make polymers Polymers are broken down to monomers Simple sugars Fatty acids Amino acids Nucleotides Triose sugars (C 3 H 6 O 3 ) Pentose sugars (C 5 H 10 O 5 ) Hexose sugars (C 6 H 12 O 6 ) H C OH H C OH H C OH H C OH H C OH H C OH HO C H H C OH H C OH H C OH H C OH HO C H HO C H H C OH H C OH H C OH H C OH H C OH H C OH H C OH H C OH H C OH C O C O H C OH H C OH H C OH HO C H H C OH C O H H H H H H H H H H H H H H C C C C O O O O Aldoses Ketoses Glyceraldehyde Ribose Glucose Galactose Dihydroxyacetone Ribulose Fructose (‘Hydrates of Carbon’): Common mono saccharides (monomers = simple sugars) General formula: Triose - 3C intermediates Pentose - Hexose - Note: Look at Fig 5.4 CAREFULLY: Linear and ring forms of glucose: Glucose in cells forms a more energetically favorable ring shape ; it can exist in two forms: a- and b-glucose Figure 5.4 Linear and ring forms of glucose Ring Structure Abbreviated ring structure H H C OH HO C H H C OH H C OH H C O C H 1 2 3 4 5 6 H OH 4 C 6 CH 2 OH 6 CH 2 OH 5 C H OH C H OH H 2 C 1 C H O H OH 4 C 5 C 3 C H H OH OH H 2 C 1 C OH H CH 2 OH H H OH HO H OH OH H 5 3 2 4 OH 3 O H O O 6 1 H H C OH HO C H H C OH H C OH H C O C H 1 2 3 4 5 6 H OH 4 C 6 CH 2 OH 6 CH 2 OH 5 C H OH C H OH H 2 C 1 C H O H OH 4 C 5 C 3 C H H OH OH H 2 C 1 C OH H CH 2 OH OH HO OH OH 5 3 2 4 OH 3 O H O O 6 1 5 ways to draw the SAME structure - Glucose (C 6 H 12 6 )! • Numbering : • Linear • Ring structure • Abbreviated ring structure : • REALLY abbreviated ring structure Really abbreviated ring structure Maltase Sucrase Maltose (malt sugar) C 12 H 22 O 11 Sucrose (table sugar) C 12 H 22 O 11 C 6 H 12 O 6 C 6 H 12 O 6 C 6 H 12 O 6 C 6 H 12 O 6 (a) (b) Hydrolysis of two common disaccharides by intestinal brush-border enzymes: (note ring form and numbering = important) Not shown: Lactose Figure 5.5 Examples of di saccharides (“double sugars”) (c) Cellulose: 1– 4 linkage of β glucose monomers H O O...
View Full Document

This note was uploaded on 05/05/2010 for the course BIO 101 taught by Professor Vaughan during the Spring '10 term at IUPUI.

Page1 / 27

Ch5 - K101: Chapter 5, Part I The Structure and Function of...

This preview shows document pages 1 - 7. Sign up to view the full document.

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