MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What does decomposition depend on? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Ammonia |
| D. | Carbon monoxide |
| Answer» B. Nitrogen | |
| 2. |
How many steps are involved in the process of decomposition? |
| A. | 10 |
| B. | 2 |
| C. | 8 |
| D. | 5 |
| Answer» E. | |
| 3. |
What is the process of release of inorganic substances both minerals and non-minerals from organic matter called? |
| A. | Fragmentation |
| B. | Mineralization |
| C. | Humification |
| D. | Leaching |
| Answer» C. Humification | |
| 4. |
Which substances are formed along with humus due to the decomposition process? |
| A. | Organic substances |
| B. | Minerals |
| C. | Inorganic substance |
| D. | Fragments |
| Answer» D. Fragments | |
| 5. |
What is the percolation of the soluble substances formed due to decomposition called? |
| A. | Humification |
| B. | Leaching |
| C. | Mineralization |
| D. | Catabolism |
| Answer» C. Mineralization | |
| 6. |
What is the dark amorphous organic matter rich in cellulose and lignin that is highly resistant to any microbial action and decomposes at a slower rate called? |
| A. | Fragments |
| B. | Enzymes |
| C. | Humus |
| D. | Minerals |
| Answer» D. Minerals | |
| 7. |
What is the process of the formation of a dark-colored amorphous substance called? |
| A. | Leaching |
| B. | Catabolism |
| C. | Fragmentation |
| D. | Humification |
| Answer» E. | |
| 8. |
What is the process called when detritivores feed on larger pieces and leave smaller fragments behind? |
| A. | Leaching |
| B. | Catabolism |
| C. | Fragmentation |
| D. | Mineralization |
| Answer» D. Mineralization | |
| 9. |
What is the process of secretion of digestive enzymes by decomposers to convert insoluble complex organic molecules into simple soluble organic and inorganic molecules called? |
| A. | Fragmentation |
| B. | Decomposition |
| C. | Humification |
| D. | Catabolism |
| Answer» E. | |
| 10. |
Which of the following is an example of detritivore? |
| A. | Monkey |
| B. | Termites |
| C. | Elephant |
| D. | Flat-worm |
| Answer» C. Elephant | |
| 11. |
Which organisms carry out the fragmentation of detritus? |
| A. | Sponges |
| B. | Vertebrates |
| C. | Detritivores |
| D. | Zooplankton |
| Answer» D. Zooplankton | |
| 12. |
What are the complex organic remains such as dead animal remains, dead plant remains, and fecal matter called? |
| A. | Humus |
| B. | Mucus |
| C. | Excreta |
| D. | Detritus |
| Answer» E. | |
| 13. |
What is the process of break down complex organic matter into inorganic substances called? |
| A. | Organization |
| B. | Decomposition |
| C. | Production |
| D. | Consumption |
| Answer» C. Production | |
| 14. |
Which are the organisms called those who are responsible for the break down complex organic matter into inorganic substances? |
| A. | Decomposers |
| B. | Producers |
| C. | Consumers |
| D. | Herbivores |
| Answer» B. Producers | |
| 15. |
Which organism is said to be a farmer s friend? |
| A. | Rat |
| B. | Earthworm |
| C. | Bat |
| D. | Leopard |
| Answer» C. Bat | |