Exam 9: Cellular Respiration and Fermentation

The figure below illustrates some of the steps (reactions) of glycolysis in their proper sequence. Each step is lettered. Use these letters to answer the questions. -Which portion of the pathway in the figure above contains a phosphorylation reaction in which ATP is the phosphate source?

Use the following figure to answer the questions below. The citric acid cycle. -Starting with one molecule of isocitrate and ending with fumarate, how many ATP molecules can be made through substrate-level phosphorylation (see the figure above)?

The figure below illustrates some of the steps (reactions) of glycolysis in their proper sequence. Each step is lettered. Use these letters to answer the questions. -Which step in the figure above shows a split of one molecule into two smaller molecules?

Which of the following produces the most ATP when glucose (C₆H₁₂O)is completely oxidized to carbon dioxide (CO)and water?

During aerobic respiration, electrons travel downhill in which sequence?

How many carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate?

In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of

What is proton-motive force?

Use the following figure to answer the questions below. The citric acid cycle. -For each molecule of glucose that is metabolized by glycolysis and the citric acid cycle (see Figure 9.2), what is the total number of NADH + FADH₂ molecules produced?

If a cell is able to synthesize 30 ATP molecules for each molecule of glucose completely oxidized by carbon dioxide and water, how many ATP molecules can the cell synthesize for each molecule of pyruvate oxidized to carbon dioxide and water?

Carbon dioxide (CO)is released during which of the following stages of cellular respiration?

Use the following figure to answer the questions below. -What happens at the end of the chain in the figure above?

Use the following figure to answer the questions below. -The figure above shows the electron transport chain. Which of the following is the combination of substances that is initially added to the chain?

The figure below illustrates some of the steps (reactions) of glycolysis in their proper sequence. Each step is lettered. Use these letters to answer the questions. -In which step in the figure above is an inorganic phosphate added to the reactant?

A mutation in yeast makes it unable to convert pyruvate to ethanol. How will this mutation affect these yeast cells?

Why is glycolysis considered to be one of the first metabolic pathways to have evolved?

Starting with one molecule of glucose, the energy-containing products of glycolysis are