Question types

Start with

Question limit

of 35 available terms

Advertisement Upgrade to remove ads
Print test

5 Written questions

5 Matching questions

  1. Draw functional group structure and give molecular formula for: Sulfhydryl.
  2. What is the pH scale?
  3. What are the different types of isomers (changes) and how are they different?
  4. 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?
  5. How many valence electrons does carbon have? How many single covalent bonds can it form?
  1. a pH is the measurement used to quantify the H⁺ ion concentration in an aqueous (water) solution
  2. b Sulfhydryl (−SH or HS−) (protein cross-linking, stabilizes structure)
    Ex: Covalent bonding w/ other sulfhydryls (disulfide bridge)
  3. c 4 and 4
  4. d 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
  5. e 1.) Structural - changes structural form; same formula, different structure
    2.) Geometric - differ in spatial arrangement due to inflexibility of double bond (two types: cis and trans) 3.) Enantiomers - mirror images of each other

5 Multiple choice questions

  1. Acids raise the concentration of H⁺ ions in an aqueous solution (decreases the pH number)
    Bases lower the concentration of H⁺ ions (increases the pH number)
  2. Resistance to change in temperature
  3. Carbon and Hydrogen
  4. Small organic molecules with great effects:
    Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, and Methyl
  5. Buffers are molecules that resist change in pH; they either release H⁺ to lower the pH or take up H⁺ to raise the pH

5 True/False questions

  1. Draw functional group structure and give molecular formula for: Carboxyl.
    Carboxyl (-COOH) acidic properties, components of many biologically important molecules; C double bonded to O and single to OH



    Ex: Formic acid or acetic acid


  2. 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)


  3. Describe the terms: solvent, solute, and solution.Solvent: Substance doing the dissolving (water)
    Solute: Substance being dissolved (sugar or salt)
    Solution: homogenous mixture (product of solvent & solute)


  4. Why is water in the solid phase less dense? How does this support life?Because it can bond to 4 other atoms (tetravalent - 4 valence electrons)


  5. Describe how and why hydrogen bonds form in water.Hydrogen bonds are the bonds between two polar molecules - one with a partial positive charge and one with a partial negative charge; water is perfect for this because it has the partial negative of Oxygen and the partial positive of Hydrogen.