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5 Written questions

5 Matching questions

  1. What are functional groups? Names?
  2. How many valence electrons does carbon have? How many single covalent bonds can it form?
  3. What is the Universal Solvent?
  4. Draw functional group structure and give molecular formula for: Sulfhydryl.
  5. What scale is pH?
  1. a WATER!
  2. b Small organic molecules with great effects:
    Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, and Methyl
  3. c 4 and 4
  4. d A log scale. Each change is 10 times. So when we go up or down, we add a zero to the end.
  5. e Sulfhydryl (−SH or HS−) (protein cross-linking, stabilizes structure)
    Ex: Covalent bonding w/ other sulfhydryls (disulfide bridge)

5 Multiple choice questions

  1. Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, and Methyl
  2. Ex: pH = 12, What is the molar concentration of H⁺? OH⁻? H⁺ is 1 x 10⁻¹², OH⁻ is 1 x 10⁻².
  3. Amino (-NH₂) (acts as a base, amino acids); N single bonded to 2 H's


    Ex: Glycine
  4. Carbon and Hydrogen
  5. YES!

5 True/False questions

  1. Do the functional groups have an impact on life? Give an example.Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, and Methyl


  2. Describe surface tension and give an example relating to living organisms.Solvent: Substance doing the dissolving (water)
    Solute: Substance being dissolved (sugar or salt)
    Solution: homogenous mixture (product of solvent & solute)


  3. How do acids and bases affect pH?Buffers are molecules that resist change in pH; they either release H⁺ to lower the pH or take up H⁺ to raise the pH


  4. Be able to recreate hydrogen bonding in water.
    (see p. 1 slide 4 in ch. 3)


  5. How does waters specific heat compare to other solvents specific heat? What properties does it have that allows this? What affect does this have on the climate?Waters specific heat is much higher that that of other solvents; this is because of hydrogen bonding; this keeps temperatures of places near/on bodies of water consistent