View the animation below, then complete the quiz to test your knowledge of the concept.
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1 | Before entering the Krebs cycle, pyruvate is converted to |
| A) | glucose. |
| B) | H2O and CO2. |
| C) | acetic acid. |
| D) | acetyl-CoA. |
| E) | oxaloacetate. |
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2 | A single "turn" of the Krebs cycle will yield |
| A) | 1 ATP, 2 NADH, and 1 FADH2. |
| B) | 1 ATP, 2 NADH, and 2 FADH2. |
| C) | 1 ATP, 3 NADH, and 1 FADH2. |
| D) | 2 ATP, 2 NADH, and 2 FADH2. |
| E) | 2 ATP, 3 NADH, and 2 FADH2. |
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3 | The initial reaction of the Krebs cycle involves the addition of a |
| A) | 2-carbon molecule to a 4-carbon molecule. |
| B) | 2-carbon molecule to a 5-carbon molecule. |
| C) | 2-carbon molecule to a 6-carbon molecule. |
| D) | 3-carbon molecule to a 4-carbon molecule. |
| E) | 3-carbon molecule to a 5-carbon molecule. |
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4 | The Krebs cycle occurs in the mitochondrion. |
| A) | True |
| B) | False |
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5 | A single "turn" of the Krebs cycle involves three different decarboxylation reactions. |
| A) | True |
| B) | False |