Quiz 4, BICH 410 (MWF3-3:50), Friday, Nov. 6, 1998

Clearly circle the letter corresponding to your answer for each problem. There are six problems, four of which count 3 points, and two for 4 points. No partial credit given for multiple-choice questions.
gas constant R 8.315 J/mole-KĄ; Faraday constant F 96.5 kJ/mole-volt

1. Which of the following is true about an enzymatic reaction that proceeds via a "ping-pong" mechanism?
Answer: B

2. (4 pts) A competitive inhibitor is characterized by the following properties:

Answer: B

3. Which of the following is NOT involved in the signal transduction pathway that results from binding of the hormone glucagon to its receptor?

Answer: C

4. Which of the following statements about allosteric control of enzymatic activity is FALSE?

Answer: B

5. The steps of glycolysis between glucose and fructose-1,6-bisphosphate involve all the following except:

Answer: D

6. (4 pts) Which step in glycolysis is inhibited by addition of iodoacetate?

Answer: B