Feedback for Multiple Choice Quiz 31 #2

  1. Remember that fatty acids are first activated to form an acyl-CoA. Then the chain is sequentially shortened with the release of acetyl-CoA units. See Fig. 21.7 in Campbell.

  2. The thiokinase reaction is analogous to other activating reactions that produce PPi. Can you cite two others?

  3. Acetyl-CoA oxidation occurs only in the matrix compartment; the acyl-carnitine shuttle is imposed because CoA derivatives cannot pass through the mitochondrial inner membrane.

  4. The "balance sheet" is shown in Table 21.1.

  5. See section 21.2 .

  6. "Gotcha-type" question if you chose "8, 8". The last cycle of b-oxidation (involving a butyryl-CoA) results in two acetyl-CoA's.

  7. Okay, you probably got this correct, but do you know how much more energy per gram can be obtained from fat vs. say, sugar? See Table 21.1 and the discussion on p. 574 of Campbell.

  8. This is a "must-know" concept for this course.
    And, a general process that builds large molecules from smaller ones is called ___.
  All of the correct answers have a green check mark.
  Incorrect answers have the "red-lit" button next to your choice.