MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In how many ways do different cells handle pyruvic acid? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 2. |
At what percentage, yeast poison themselves? |
| A. | 4% |
| B. | 7% |
| C. | 13% |
| D. | 45% |
| Answer» D. 45% | |
| 3. |
How much energy is released in lactic acid and alcohol fermentation? |
| A. | Less than 7 per cent |
| B. | More than 7 per cent |
| C. | More than 50 per cent |
| D. | More than 75 per cent |
| Answer» B. More than 7 per cent | |
| 4. |
In lactic acid fermentation, the reducing agents are carbon dioxide and water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Where does lactic acid fermentation take place in animal cells? |
| A. | In the whole body |
| B. | Sometimes in the muscles |
| C. | Main respiratory pathway for muscles |
| D. | In eyes |
| Answer» C. Main respiratory pathway for muscles | |
| 6. |
Which of the following enzymes is not used under anaerobic conditions? |
| A. | Pyruvic decarboxylase |
| B. | Alcohol dehydrogenase |
| C. | Lactate dehydrogenase |
| D. | Pyruvate dehydrogenase |
| Answer» E. | |
| 7. |
What are the final products of fermentation? |
| A. | CO<sub>2</sub> and H<sub>2</sub>O |
| B. | CO<sub>2</sub> and methanol |
| C. | H<sub>2</sub>O and ethanol |
| D. | CO<sub>2</sub> and ethanol |
| Answer» E. | |
| 8. |
Who discovered fermentation? |
| A. | Gay Lussac |
| B. | Louis Pasteur |
| C. | Kepler |
| D. | Ernst Haeckel |
| Answer» C. Kepler | |
| 9. |
Glycolysis is also called an EMP pathway. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
What is the breakdown of glucose to pyruvic acid known as? |
| A. | Respiration |
| B. | Glycolysis |
| C. | Combustion |
| D. | Hydrolysis |
| Answer» C. Combustion | |
| 11. |
What was the kind of atmosphere where the first cells on this planet lived? |
| A. | Reducing |
| B. | Oxidising |
| C. | No atmosphere |
| D. | Gold was present |
| Answer» B. Oxidising | |
| 12. |
During the process of respiration, which of the following is not released? |
| A. | Carbon dioxide |
| B. | Water |
| C. | Oxygen |
| D. | Energy |
| Answer» D. Energy | |
| 13. |
What is the strategy of the plants to oxidise glucose? |
| A. | Oxidise glucose in several large steps |
| B. | Oxidise glucose in several small steps |
| C. | Reduce glucose in several large steps |
| D. | Reduce glucose in several small steps |
| Answer» C. Reduce glucose in several large steps | |
| 14. |
Which of the following are the end products of the complete combustion of glucose? |
| A. | CO<sub>2</sub> and starch |
| B. | Fructose and lactose |
| C. | H<sub>2</sub>O and mannose |
| D. | CO<sub>2</sub> and H<sub>2</sub>O |
| Answer» E. | |