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5 Written questions

5 Matching questions

  1. Do the functional groups have an impact on life? Give an example.
  2. What two properties of water do plants take advantage of, to move water against gravity, explain?
  3. What are emergent properties of water?
  4. Describe the terms: solvent, solute, and solution.
  5. Be able to calculate the molar concentrations of hydrogen and hydroxide ions from a given pH value or vice versa.
  1. a Yes. Ex: tiny tag from a functional group determines whether we are males or females
  2. b Solvent: Substance doing the dissolving (water)
    Solute: Substance being dissolved (sugar or salt)
    Solution: homogenous mixture (product of solvent & solute)
  3. c Ex: pH = 12, What is the molar concentration of H⁺? OH⁻? H⁺ is 1 x 10⁻¹², OH⁻ is 1 x 10⁻².
  4. d Special abilities water takes on when combined with itself (only works with large amounts of molecules, not just a single molecule)
  5. e Cohesion and Adhesion.
    Cohesion - waters ability to stick to ITSELF (other water molecules)
    Adhesion - waters ability to stick to OTHER THINGS that are POLAR

5 Multiple choice questions

  1. A log scale. Each change is 10 times. So when we go up or down, we add a zero to the end.
  2. Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, and Methyl
  3. Heat required to convert 1g of liquid into a gaseous state (high); Evaporative cooling is the warmest molecules of a liquid leave as a gas; allows us to sweat, or release heat so we don't die
  4. YES!

  5. (see p. 1 slide 4 in ch. 3)

5 True/False questions

  1. What are primary producers?Fix C from atmospheric CO₂ (ex: Plants w/ photosynthesis)

          

  2. Why is carbon the basic building element of life?WATER!

          

  3. What is a buffer?A log scale. Each change is 10 times. So when we go up or down, we add a zero to the end.

          

  4. What is a hydrocarbon? Polar or non-polar?Organic molecules composed solely of Carbon and Hydrogen; Nonpolar covalent bond so they resist/repel water (ex: fat)

          

  5. What is the Universal Solvent?WATER!

          

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