Quiz on Glycolysis and Krebs Cycle

What is the net ATP produced during glycolysis?

• 6 ATP

• 4 ATP

• 2 ATP

• 0 ATP

What is the primary function of Coenzyme A (CoA) in cellular respiration?

• To synthesize NADH

• To oxidize glucose

• To produce ATP

• To carry Acetyl groups

Which enzyme catalyzes the first step of glycolysis?

• Lactate dehydrogenase

• Pyruvate kinase

• Phosphofructokinase

• Hexokinase

What is the end product of glycolysis?

• Acetyl CoA

• NADH

• FADH2

• Pyruvate

How many molecules of NADH are produced in one cycle of the Krebs cycle?

• 2

• 1

• 3

• 4

What is the purpose of the Krebs cycle?

• To produce glucose

• To oxidize Acetyl CoA

• To generate oxygen

• To synthesize proteins

Which compound combines with Acetyl CoA to form citrate?

• Succinyl-CoA

• Oxaloacetate

• Fumarate

• Isocitrate

What is produced during the oxidative decarboxylation of isocitrate?

• Glucose and O2

• ATP and H2O

• FADH2 and GTP

• NADH and CO2

Which step of the Krebs cycle involves the conversion of succinyl-CoA into succinate?

• Step 6

• Step 3

• Step 4

• Step 5

What is the final product of the Krebs cycle that allows the cycle to repeat?

• Fumarate

• Acetyl CoA

• Citrate

• Oxaloacetate