STEPS AND PROCESSES

It is phosphorylated by hexokinase into glucose-6-phosphate.

What happens first to glucose in glycolysis?

Phosphofructokinase-1 phosphorylates fructose-6-phosphate.

What is the committed step of glycolysis?

What molecules result after cleavage by aldolase?

DHAP and G3P.

Where is ATP produced in glycolysis?

Step 7 (phosphoglycerokinase) and Step 10 (pyruvate kinase).

Before Krebs Cycle, pyruvate is converted into?

Acetyl-CoA.

Where does the Krebs Cycle occur?

Mitochondrial matrix.

What molecule reacts with Acetyl-CoA to start the cycle?

Oxaloacetate

How many NADH are produced per Krebs Cycle turn?

3 NADH

Where is FADH₂ produced in Krebs Cycle?

Succinate → Fumarate step.

Which enzyme is membrane-bound in the Krebs Cycle?

Succinate dehydrogenase.

Isocitrate → α-ketoglutarate and α-ketoglutarate → Succinyl-CoA.

Which steps release CO₂ in Krebs Cycle?

one

How many FADH₂ are produced per Acetyl-CoA?

after

Is fumarase used before or after FADH₂ production?

Oxaloacetate

What is regenerated at the end of Krebs Cycle?

False (CO₂ is released first.)

ATP is made before CO₂ in Krebs Cycle?