Glycolysis and Oxidative Phosphorylation Quiz

What is the net gain of ATP during glycolysis?

• 1 ATP

• 2 ATP

• 4 ATP

• 6 ATP

What are the three main phases of glycolysis?

• Preparation, Splitting, Oxidation

• Energy investment, Cleavage, Energy payoff

• Input, Reaction, Output

• Initiation, Propagation, Termination

What is the first enzyme that catalyzes glucose in glycolysis?

• Phosphofructokinase-1

• Hexokinase

• Aldolase

• Pyruvate kinase

Which molecule is the final product of glycolysis?

• ATP

• Lactate

• Pyruvate

• Glucose-6-phosphate

What is the role of NAD+ in glycolysis?

• It provides energy to break down glucose.

• It acts as an electron carrier.

• It converts pyruvate into lactate.

• It phosphorylates glucose.

How many molecules of pyruvate are produced from one glucose molecule in glycolysis?

• 1

• 2

• 4

• 6

Which step in glycolysis is considered the rate-limiting step?

• Glucose → Glucose-6-phosphate

• Fructose-6-phosphate → Fructose-1,6-bisphosphate

• Glyceraldehyde-3-phosphate → 1,3-Bisphosphoglycerate

• Phosphoenolpyruvate → Pyruvate

What enzyme phosphorylates glucose to glucose-6-phosphate?

• Hexokinase

• Aldolase

• Enolase

• Phosphoglycerate kinase

What happens to pyruvate under anaerobic conditions in human cells?

• It is converted to ethanol.

• It is converted to lactate.

• It enters the citric acid cycle.

• It is stored as glycogen.

In which cellular compartment does glycolysis occur?

• Mitochondrial matrix

• Inner mitochondrial membrane

• Cytoplasm

• Nucleus