9.1 Microbial Physiology Module 9: Metabolism

Of the following metabolites from glycolysis, which serves as a starting molecule in pentose phosphate pathway?

• Glucose-6-phosphate

• Fructose-6-phosphate

• 1,3-bisphosphoglycerate

• phosphoenolpyruvate

Which of the following pathways can be used to catabolize gluconate or gluconic acid?

• A. Embden-Meyerhoff-Parnas

• B. Pentose Phosphate Pathway

• C. Entner-Doudoroff Pathway

• D. Both A and B

• E. Both B and C

Which of the following pathways does/do not produce ATP?

• A. Embden-Meyerhoff-Parnas

• B. Pentose Phosphate Pathway

• C. Entner-Doudoroff Pathway

• D. Both A and B

• E. Both B and C

Which of the following pathways produce(s) NADPH?

• A. Embden-Meyerhoff-Parnas

• B. Pentose Phosphate Pathway

• C. Entner-Doudoroff Pathway

• D. Both A and B

• E. Both B and C

What is the total (net) ATP yield per mole of glucose via glycolysis alone?

• 2 mol ATP

• 4 mol ATP

• 6 mol ATP

• 8 mol ATP

• None of the aforementioned.

What is the total (net) ATP yield per mole of glucose via pentose phosphate pathway alone?

• 2 mol ATP

• 4 mol ATP

• 6 mol ATP

• 8 mol ATP

• None of the aforementioned.

What is the total (net) ATP yield per mole of glucose via Entner-Doudoroff pathway alone?

• 1 mol ATP

• 4 mol ATP

• 6 mol ATP

• 8 mol ATP

• None of the aforementioned.

Which enzyme is most commonly inhibited by ATP or citrate through end-product or feedback inhibition?

• Phosphofructokinase

• Fructose-1,6 biphosphate phosphatase

• Pyruvate kinase

• Hexokinase

• None of the aforementioned.

Which is not a product of citric acid cycle?

• Pyruvate

• CO2

• NADH

• FADH2

• None of the aforementioned.

Which step of the Embden-Meyerhoff-Parnas Pathway is reversible?

• phosphofructokinase step

• hexokinase step

• pyruvate kinase step

• mutase step