Glycolysis and The Citric Acid Cycle Quiz

Glycolysis and The Citric Acid Cycle Quiz

1.     What is the purpose of phosphorylating glucose in cytosol?

TO TRAP GLUCOSE IN THE CELL AND TO DESTABILIZE GLUCOSE AND FACILITATE THE NEXT SERIES OF METABOLIC STEPS

2.     The end result of glycolysis includes the

FORMATION OF TWO MOLECULES OF PYRUVATE

3.     NADH

IS A KEY ELECTRON CARRIER IN REDOX REACTIONS

4.     Overall, four molecules of ATP are produced by glycolysis. However, the products of glycolysis are two ATP molecules, two pyruvate molecules, and two NADH molecules. The ATP values do not match because

TWO ATP ARE INVESTED IN THE PROCESS OF GLYCOLYSIS

5.     In the absence of O2, cells capable of fermentation

CAN OXIDIZE NADH TO PRODUCE NAD+

6.     What are the primary metabolic fates of pyruvate?

ETHANOL, LACTATE, AND ACETYL CoA

7.     Pyruvate oxidation generates

ACETYL CoA, NADH + H+ FROM NAD+, A CHANGE IN FREE ENERGY, AND CO2

8.     Pyruvate dehydrogenase is ___ when ATP-ADP ratios are high

INHIBITED

9.     In the conversion of pyruvate to acetyl CoA, hydrogen atoms are transferred to NAD+. The conversion of pyruvate to acetyl CoA is an example of

A REDOX REACTION

10.  Which of the following products of glycolysis initiates the citric acid cycle?

ACETYL CoA