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6.3 Life Substances

6.3 Life Substances. Carbon has 4 spots for bonding . Can make rings or chains to form LARGE molecules. elmhurst.edu/~chm/vchembook/images/522propene.GIF. 6.3 - Metabolism.

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6.3 Life Substances

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  1. 6.3 Life Substances • Carbon has 4 spots for bonding. • Can make rings or chains to form LARGE molecules elmhurst.edu/~chm/vchembook/images/522propene.GIF

  2. 6.3 - Metabolism • Cell metabolismis the process (or really the sum of many ongoing individual processes) by which living cells process nutrient molecules and maintain a living state. • metabolism has two distinct divisions: • anabolism, in which a cell uses energy and reducing power to construct complex molecules and perform other life functions such a creating cellular structure; and • catabolism, in which a cell breaks down complex molecules to yield energy and reducing power.

  3. 6.3 Life Substances • Biomolecule – a large organic compound • 10-1000s of C atoms. • Polymer – a lg. molecule formed from several sm. molecules bonding together.

  4. Main Function- Energy Contain __, __, & __ Polymer of single sugars Monosaccharide- small sugar Glucose Disaccharide – 2 sugars Sucrose Carbohydrates

  5. Carbohydrates • Polysaccharide - Examples Used by plants to store E Add strength to plant’s cell walls “Dietary Fiber” Used by animals to store E in muscle and liver

  6. Lipids • Functions • Energy storage • Forming the membranes around our cells. • Hormones and vitamins • Lots of ___ and ___, some ___ • Examples- • Fats, oils, waxes, and steroids

  7. Lipids • Made up of fatty acids and ______ FATS OILS biology.clc.uc.edu/Courses/bio104/lipids.htm

  8. The most important! Contain ___, ___, ___, ____, ____ Functions Provide structure for tissues Carry out cell metabolism (a.k.a everything) Polymer of amino acids(aa) Peptide bonds link each aa Proteins student.ccbcmd.edu/.../images/peptidebond.jpg

  9. Proteins • Enzymes- changes the rate of a chem- ical rxn. • Lock and key

  10. Functions Stores cellular info in code. DNA, RNA Polymer of nucleotides Nucleic Acids

  11. 6.3 Life Substances

  12. 6.3 Life Substances • Source http://bioweb.wku.edu/courses/BIOL115/Wyatt/

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