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Biochemistry

This chapter delves into the foundational concepts of biochemistry, covering the basic unit of matter, the structure of atoms, and the differences between elements, compounds, and molecules. Key topics include the components of atoms (protons, neutrons, and electrons), the significance of isotopes, the nature of chemical bonds, and the influence of van der Waals forces. The chapter also highlights the pH scale, the importance of hydration, and provides practical activities like modeling atoms and compounds. This comprehensive overview is essential for anyone looking to grasp the core principles of biochemical science.

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Biochemistry

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  1. Biochemistry Chapter 2 Pages 34-57

  2. Expectation Sheet • ????? • concerns

  3. WKST 2-1 • Basic unit of matter • Parts of an atom = • Location of each • Charges associated with each • Element, compound, molecule • Isotopes • Bonds = ________ & ___________ • Van der Waals forces

  4. Activity 1: Vocabulary • Check your answers with your partner • Do we need to review or clarify any? • Difference between molecular & structural formulas • Can you think of something that is dehydrated? • What do you hydrate?

  5. IONS • Def: • Charge

  6. Isotopes • Change in number of __________ • Atomic mass accounts for isotopes- HOW?

  7. pH scale • 1-14 • Low #s are • Higher #s are • Based on concentrations of which ions? • What does “7” signify? • What do you think most solutions in our bodies should be? • What helps to keep things that way?

  8. Review of The Atom • AMU Location Charge • Proton • Neutron • Electron • Proton number is equal to the identity • Of the atom 1-H, 6-C, 79-Au

  9. Element is a substance that ordinarily can not be broken down chemically to form simpler kinds of matter • Examples: Oxygen O • Hydrogen H • Carbon C • The family the atom falls into is ultimately based on its proton number

  10. Name Symbol Atomic Valence Number • Number Electrons Needed • Hydrogen H 1 • Oxygen O 8 • Nitrogen N 7 • Carbon C 6 • Phosphorus P 15 • Sulfur S 16

  11. HONC rule • H • O • N • C

  12. Are you ready to start act. 4 next time? • Have you read it? • Did you download the data table?

  13. Representations of atoms/compounds • Lewis dot diagrams • Models • Sketches / drawings

  14. Sketch • Atom of hydrogen • Atom of Oxygen • Molecule of water

  15. Models • CH4 = Methane

  16. WATER = H2O

  17. Ethyl alcohol • C2H5OH

  18. Carbon Dioxide • CO2

  19. Answer the questions 2B • Now try the models for • propanol • Ethane • Ethene • Amonia

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