I need help in my bio quiz that is due in an hour. Please help asap, thank you!

Question

I need help in my bio quiz that is due in an hour. Please help asap, thank you!
11-14. Refer to the diagram to the right. 11. Identify the pathways in the list below with the correct number from the diagram: (2 points each) Citrie acid cyele Electron transport and ATP synthesis -Glycolysis Pyruvate oxidation 12. Which step in the pathway produces the most ATP? (2 points) 13. Which of these pathway(s) occurs in the presence of Oz? (4 points) CO, and H2O 14. Which of these pathway(s) occur in the absence of O2? (4 points) 15. Explain how glucose is used to generate ATP in the absence of O2. (6 points)

Explanation / Answer

11. Citric acid cycle is 3.

Electron transport and ATP synthesis is 4

Glycolysis is 1.

Pyruvate oxidation is 2.

-------------------------------------

12. The most ATP is produced by electron transport. Approximately 36 to 38 ATP molecules are produced.

----------------------------

13. The TCA cycle cannot occur without oxygen. But the electron transport chain uses oxygen in its process to produce ATP.In the absence of oxygen,another electron acceptor is used. Pyruvate reduction also needs oxygen.

----------------------------

14. Glycolysis can occur in the presence or absence of oxygen. Even electron transport chain.

--------------------------

15. In the absence of oxygen,pyruvate is converted to lactic acid through fermentation or alcohol. The two ATPmolecules are produced during glycolysis. The TCA cycle does not occur. So other sources like sulphate and nitrate can be used as electron acceptors in the electron transport chain to produce less amount of energy

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.