1
BCH 4013/6013 Exam 2 (10/07/2010)
There are 50 questions worth
0.4 points each
(total 20 points)
1. If the ∆G'° of the reaction A → B is –30 kJ/mol, under standard conditions, the reaction:
A) is at equilibrium.
B) will proceed spontaneously from right to left.
C) will not occur spontaneously.
D) will proceed spontaneously from left to right.
2. The conversion of 1 mol of glucose to 2 mol of pyruvate by the glycolytic pathway results in a
NET formation of:
A) 1 mol of NAD
+
and 2 mol of ATP
B) 1 mol of NADH and 1 mol of ATP
C) 2 mol of NAD
+
and 4 mol of ATP
D) 2 mol of NADH and 2 mol of ATP
3. Gluconeogenesis is the biosynthesis of glucose from simpler, noncarbohydrate precursors such
as:
A) pyruvate
B) Acetate
C) ATP
D) ADP
4. The pentose phosphate pathway produces:
A) thiamine pyrophosphate
B) ribose 5-phosphate and NADPH
C) biotin
D) ethanol
5. The storage form of carbohydrates in animals is:
A) glucose
B) amylopectin
C) lactose
D) glycogen
6. The glycogen-branching enzyme catalyzes:
A) formation of 1-4 linkages during glycogen degradation
B) formation of 1-4 linkages during glycogen synthesis
C) formation of 1-6 linkages during glycogen degradation
D) formation of 1-6 linkages during glycogen synthesis
7. The conversion of 2 mol of pyruvate to 1 mol of glucose by gluconeogenesis requires:
A) 2 mol of ATP
B) 4 mol of ATP and 2 mol of GTP
C) 2 mol of GTP
D) none of the above
8. Brewing beer is a process of:
A) ethanol fermentation of carbohydrate
B) lactic acid fermentation of carbohydrate
C) all of the above
D) none of the above.
