Microbiology 10th Tortola

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Unit 3 Quiz
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2.| Which of the following is not true about anaerobic respiration?| | A.| It involves glycolysis only.|
B.| It involves the Krebs cycle.|
C.| It involves the reduction of nitrate.|
D.| It generates ATP.|
E.| It requires cytochromes.|
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3.| What is the fate of pyruvic acid in an organism that uses aerobic respiration?| | A.| It is reduced to lactic acid.|
B.| * It is oxidized in the Krebs cycle.|
C.| It is oxidized in the electron transport chain.|
D.| It is catabolized in glycolysis.|
E.| It is reduced in the Krebs cycle.|
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4.| Fatty acids are catabolized in|
| A.| The Krebs cycle.|
B.| The electron transport chain.|
C.| Glycolysis.|
D.| The pentose phosphate pathway.|
E.| The Entner Doudoroff pathway.|
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5.| Which of the following is the best definition of oxidative phosphorylation?| | A.| Electrons are passed through a series of carriers to O2.| B.| The energy released as carrier molecules are oxidized is used to generate ATP.| C.| The energy released in the reduction of carrier molecules is used to generate ATP.| D.| The transfer of a high-energy phosphate group to ADP.|

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6.| All the following are true about substrate-level phosphorylation except| | A.| It involves the direct transfer of a high-energy phosphate group from an intermediate metabolic compound to ADP.| B.| No final electron acceptor is required.|

C.| It occurs in glycolysis.|
D.| The oxidation of intermediate metabolic compounds releases energy that is used to generate ATP.| E.| All of the above are true.|
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7.| Which of the following is the best definition of fermentation?| | A.| The reduction of glucose to pyruvic acid.|
B.| The oxidation of glucose with organic molecules serving as electron acceptors.| C.| The complete catabolism of glucose to CO2 and H2O.|
D....
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