1 / 11

Chapter 2 The Chemistry of Life

Chapter 2 The Chemistry of Life. 2-2 Properties of water. The Water Molecule. How is water neutral? KeyC#1: Why are water molecules polar? Uneven distribution of electrons between the hydrogen and oxygen atoms. Oxygen (-) Hydrogen (+) Let’s draw!.

jamese
Download Presentation

Chapter 2 The Chemistry of Life

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 2 The Chemistry of Life 2-2 Properties of water

  2. The Water Molecule • How is water neutral? • KeyC#1: Why are water molecules polar? • Uneven distribution of electrons between the hydrogen and oxygen atoms. • Oxygen (-) • Hydrogen (+) • Let’s draw! • Why are polar molecules attracted to each other? • What is the difference between COHESION and ADHESION? • What are some examples of each? • http://ed.ted.com/lessons/how-polarity-makes-water-behave-strangely-christina-kleinberg#watch

  3. Solutions and Suspensions • What is a mixture? Give me some examples of mixtures. • What is a solution? • Solute is diLUTEd • Solvent is the disSOLVEr • Suspensions: materials that do not dissolve but are suspended (i.e. blood)

  4. Acids, Bases, and pH • What is the range of the pH scale? • What is an acid? • What is a base? • What is a buffer? • What is the pH of pure water? Explain.

  5. Chapter 2The Chemistry of Life 2-3 Carbon Compounds

  6. The Chemistry of Carbon • Why is carbon important?

  7. Macromolecules • What is a macromolecule? • How are they formed? • KeyC#1: What are the functions of each group of organic compounds? • Carbohydrates • Lipids • Nucleic Acids • Proteins

  8. Carbohydrates • Composition: 1:2:1 ratio of carbon, hydrogen and oxygen atoms. • Function: used for energy and structure • Simple sugars are called… • Complex sugars are called…

  9. Lipids • Composition: mostly carbon and hydrogen atoms (glycerol molecule + fatty acid, fig. 2-14) • Function: energy storage; waterproof membranes • Ex. Cell Membrane • What does it mean when a lipid is saturated or unsaturated?

  10. Nucleic Acids • Composition: H, O, N, C, and P; polymers of nucleotides • What is a nucleotide? • Function: store and transmit genetic information • What are the two kinds of nucleic acids?

  11. Proteins • Composition: N, C, H and O; polymers of amino acids. • Function: reaction rates, cell processes, form muscles and bones, transportation, fight disease…… • What makes amino acids different from one another? • How are proteins organized?

More Related