Chapter 3 - Chapter 3 Macromolecules and the Origin of Life...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3: Macromolecules and the Origin of Life I. Functional Groups a. Small group of atoms = determine molecules chemical/physical properties
Background image of page 1

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

View Full DocumentRight Arrow Icon
b. Isomers = same molecular formula/different structural formulas II. Macromolecules a. Proteins, lipids, carbohydrates, and nucleic acids b. Macromolecules in similar proportions in all organisms i. Allow us to eat apple tree and obtain carbs, lipids, and proteins similar to ours c. Polymers formed from covalently bonded monomers due to condensation reactions i. Only if energy added d. Hydrolysis reactions = break polymers by reacting with water to produce monomers III. Proteins a. Functions i. Support ii. Protection iii. Transport iv. Catalysis v. Defense vi. Regulation vii.Movement b. Made from Amino acids i. Polypeptide chain 1. Peptide bond COOH - of A to NH 3 + of B (H 2 O =byproduct) a. Amino to carboxyl (N to C) b. Inflexible C-N bond c. Partial charge between C=O and N-H H-bonding w/in molecule ii. Structure 1. Carboxyl and Amine group a. COOH - and NH 3 +
Background image of page 2
2. H atom 3. R Group (side chain) a. 5 charged i. hydrophilic ii. attract water and ion b. 5 polar
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/27/2011 for the course BIOSC 0150 taught by Professor Lydiadaniels during the Fall '08 term at Pittsburgh.

Page1 / 6

Chapter 3 - Chapter 3 Macromolecules and the Origin of Life...

This preview shows document pages 1 - 4. Sign up to view the full document.

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