1 / 11

Exploring Life's Molecules: Polymers and Large Molecules

Learn about the formation and breakdown of polymers, structure and function of carbohydrates, lipids, and the significance of life's organic molecules. Discover the building blocks of life.

jalila
Télécharger la présentation

Exploring Life's Molecules: Polymers and Large Molecules

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. 6.3 Section Objectives – page 157 Objectives: • Relate monomers and polymers • Describe how polymers are formed and broken down in organisms. • Describe the basic structure and function of carbohydrates. • Describe the structure and function of lipids.

  2. 6.3 Section Summary 6.3 – pages 157-163 Life’s Large Molecules • Life’s molecules = Organic = Carbon. • Carbon compounds vary greatly in size. • Straight chains, branched chains, or rings. • 4 types: carbohydrates, lipids, proteins, and nucleic acids.

  3. 6.3 Section Summary 6.3 – pages 157-163 Polymers • Small molecules (monomers) bond together to form long chains called polymers.

  4. 6.3 Section Summary 6.3 – pages 157-163 Building Polymers • Monomers are added to a chain by releasing a water molecule. • Dehydration reaction (synthesis).

  5. 6.3 Section Summary 6.3 – pages 157-163 Breaking Polymers • Cells break bonds between monomers by adding water • Hydrolysis reaction

  6. 6.3 Section Summary 6.3 – pages 157-163 “Carbs” • Acarbohydrateis an organic molecule composed of C, H, and O with a ratio of about 1: 2: 1. • Main fuel supply for cellular work.

  7. 6.3 Section Summary 6.3 – pages 157-163 Carbohydrate Forms • A single carbohydrate monomer is called amonosaccharide(ie. glucose, fructose, galactose) • 2 sugar monomers is a disaccharide (sucrose = glucose + fructose).

  8. 6.3 Section Summary 6.3 – pages 157-163 Carbohydrate Forms • Polysaccharides are polymers composed of many monosaccharide monomers. (ie. starch, glycogen, cellulose) • Energy storage or support. • Hydrophilic.

  9. 6.3 Section Summary 6.3 – pages 157-163 Lipids • Lipidsare large organic molecules that are made mostly of carbon and hydrogen with a small amount of oxygen. (ie. fats, oils, waxes) • Hydrophobic • Function: boundaries, messengers, stored energy.

  10. 6.3 Section Summary 6.3 – pages 157-163 Lipids • Fats: 3 carbon backbone + 3 fatty acid chains. • saturated and unsaturated • stored energy • Steroids: 4 fused rings. • hormones, support

  11. 6.3 Section Summary 6.3 – pages 157-163 Reconnect to Objectives • How are monomers and polymers related? • How are polymers formed? • How are polymers broken down? • What is a carbohydrate? • What is a lipid?

More Related