MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The number of ATP molecules generated in TCA cycle is _________ |
| A. | 34 |
| B. | 38 |
| C. | 24 |
| D. | 12 |
| Answer» D. 12 | |
| 2. |
Which molecule will combine with the four-carbon oxaloacetate in the TCA cycle to form the six-carbon citrate? |
| A. | lactic acid |
| B. | NADH |
| C. | ATP |
| D. | acetyl-CoA |
| Answer» E. | |
| 3. |
Phosphoenolpyruvate (PEP) is converted to oxaloacetate by the enzyme PEP deaminase. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
WHICH_MOLECULE_WILL_COMBINE_WITH_THE_FOUR-CARBON_OXALOACETATE_IN_THE_TCA_CYCLE_TO_FORM_THE_SIX-CARBON_CITRATE??$ |
| A. | lactic acid |
| B. | NADH |
| C. | ATP |
| D. | acetyl-CoA |
| Answer» E. | |
| 5. |
The number of ATP molecules generated in TCA cycle is _________$ |
| A. | 34 |
| B. | 38 |
| C. | 24 |
| D. | 12 |
| Answer» D. 12 | |
| 6. |
The enzymes present in glyoxylate cycle are which type of enzymes? |
| A. | reductase enzymes |
| B. | anaplerotic enzymes |
| C. | transferase enzymes |
| D. | hydrolase enzymes |
| Answer» C. transferase enzymes | |
| 7. |
Phosphoenolpyruvate (PEP) is converted to oxaloacetate by the enzyme PEP deaminase. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which of the following pathway is common for oxidation of carbohydrates, lipids and amino acids? |
| A. | Calvin cycle |
| B. | Electron transport chain |
| C. | TCA cycle |
| D. | Pentose phosphate pathway |
| Answer» D. Pentose phosphate pathway | |
| 9. |
Protein molecules can easily pass into the cell for being utilized for energy production. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
The TCA cycle is regulated by which of the following enzymes? |
| A. | citrate synthase |
| B. | isocitrate dehydrogenase |
| C. | malate dehydrogenase |
| D. | succinate dehydrogenase |
| Answer» C. malate dehydrogenase | |
| 11. |
Which pathway will result in the production of four carbon dioxide molecules, two ATP molecules, NADH2 and FADH2? |
| A. | glycolysis |
| B. | Krebs cycle |
| C. | Calvin cycle |
| D. | electron transport system |
| Answer» C. Calvin cycle | |
| 12. |
Which of the following intermediates of TCA cycle act as amino acid precursors? |
| A. | oxaloacetic acid |
| B. | succinic acid |
| C. | citric acid |
| D. | acetyl CoA |
| Answer» B. succinic acid | |
| 13. |
The TCA Cycle is an _____________ pathway. |
| A. | catabolic |
| B. | anabolic |
| C. | amphibolic |
| D. | respiratory |
| Answer» D. respiratory | |