Exam 9: Cellular Respiration and Fermentation

How many oxygen molecules (O2) are required each time a molecule of glucose (C6H12O6) is completely oxidized to carbon dioxide and water via aerobic respiration?

Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?

Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule at that point in the process, however, is in the form of ________.

Which of the following statements about cellular metabolism is FALSE?

What carbon source(s) can yeast cells metabolize under anaerobic conditions to make ATP?

During glycolysis, when each molecule of glucose is catabolized to two molecules of pyruvate, most of the potential energy contained in glucose is ________.

In mitochondria, exergonic redox reactions ________.

Use the following information to answer the question(s) below. Exposing inner mitochondrial membranes to ultrasonic vibrations will disrupt the membranes. However, the fragments will reseal "inside out." The little vesicles that result can still transfer electrons from NADH to oxygen and synthesize ATP. -After the disruption, when electron transfer and ATP synthesis still occur, what must be present?

Which of the following events takes place in the electron transport chain?

The energy of electron transport serves to move (translocate) protons to the outer mitochondrial compartment. How does this help the mitochondrion produce ATP?

The ATP made during fermentation is generated by ________.

Use the accompanying figure to answer the following question(s). -The accompanying figure shows the electron transport chain. Which of the following is the combination of substances that is initially added to the chain?

In addition to ATP, what are the end products of glycolysis?

Which of the following produces the most ATP when glucose (C6H12O6) is completely oxidized to carbon dioxide and water?

The glucose molecule has a large quantity of energy in its ________.

A substrate-level phosphorylation occurs in the citric acid cycle when ________.

In liver cells, the inner mitochondrial membranes are about five times the area of the outer mitochondrial membranes. What purpose must this serve?

Use the accompanying figure to answer the following question(s). -Which of the following most accurately describes what is happening along the electron transport chain in the accompanying figure?

Why is glycolysis described as having an investment phase and a payoff phase?

When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?