Glycolysis Quiz

Where in a eukaryotic cell does glycolysis occur?

• In the mitochondrial matrix

• On the inner mitochondrial membrane

• In the cytoplasm

• In the Krebs cycle

What is the 'Investment Phase' of glycolysis?

• The cell harvests 4 ATP and 2 reduced NAD.

• The 6-carbon sugar is split into two 3-carbon molecules.

• The cell uses 2 ATP to phosphorylate a glucose molecule.

• Pyruvate is produced as the end product.

During the lysis step of glycolysis, what molecule is split?

• Glucose

• Fructose bisphosphate

• Triose phosphate

• Pyruvate

What is the net gain of ATP from one molecule of glucose during glycolysis?

• 0 ATP

• 2 ATP

• 4 ATP

• 32 ATP

What is the role of NAD+ in the oxidation step of glycolysis?

• It is oxidized to form NADH.

• It accepts hydrogen atoms to form reduced NAD (NADH).

• It provides the energy for phosphorylation.

• It is converted into pyruvate.

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

• 1

• 2

• 3

• 4

Which step involves the direct formation of ATP from intermediate substrate molecules?

• Phosphorylation

• Lysis

• Oxidation

• Dephosphorylation

According to the pathway diagram, how many carbon atoms are in a molecule of triose phosphate?

• 2

• 3

• 5

• 6

What are the final products of glycolysis from one glucose molecule?

• 2 pyruvate, 4 ATP, 2 reduced NAD

• 2 pyruvate, 2 ATP (net gain), 2 reduced NAD

• 1 pyruvate, 2 ATP (net gain), 4 reduced NAD

• 2 fructose bisphosphate, 4 ATP, 2 NAD+

Why is ATP used at the start of glycolysis?

• To produce a net gain of 4 ATP.

• To split the glucose molecule directly.

• To make the glucose molecule more reactive.

• To produce reduced NAD.