MCQOPTIONS
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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. |
Which of the following are the excretory structures of crustaceans? |
| A. | Nephridia |
| B. | Protonephridia |
| C. | Malpighian tubules |
| D. | Antennal glands |
| Answer» E. | |
| 2. |
Malpighian tubules are the excretory structures of which of the following? |
| A. | Insects |
| B. | Flatworms |
| C. | Roundworms |
| D. | Crustaceans |
| Answer» B. Flatworms | |
| 3. |
Which of the following phyla have nephridia as an excretory structure? |
| A. | Arthropods |
| B. | Annelids |
| C. | Platyhelminthes |
| D. | Ctenophora |
| Answer» C. Platyhelminthes | |
| 4. |
Which of the following organism has flame cells for excretion? |
| A. | Flatworms |
| B. | Roundworms |
| C. | Hookworms |
| D. | Pinworms |
| Answer» B. Roundworms | |
| 5. |
In most of the invertebrates, kidneys are present for excretion. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Excretion of which of the following is for the adaptation of water conservation? |
| A. | Ammonia |
| B. | Urea |
| C. | Uric acid |
| D. | Carbon dioxide |
| Answer» D. Carbon dioxide | |
| 7. |
Which of the following is not a guanotelic organism? |
| A. | Spiders |
| B. | Scorpions |
| C. | Starfish |
| D. | Marine birds |
| Answer» D. Marine birds | |
| 8. |
Which of the following is not a uricotelic organism? |
| A. | Mammals |
| B. | Reptiles |
| C. | Birds |
| D. | Land snails |
| Answer» B. Reptiles | |
| 9. |
In ureotelic organisms, ammonia is converted into which of the following? |
| A. | Uric acid |
| B. | Carbon dioxide |
| C. | Remains as such |
| D. | Urea |
| Answer» E. | |
| 10. |
Which of the following organisms is not ureotelic? |
| A. | Bony fishes |
| B. | Mammals |
| C. | Terrestrial amphibians |
| D. | Marine fishes |
| Answer» B. Mammals | |
| 11. |
The process of excreting ammonia is called as ureotelism. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Ammonia is generally excreted through which of the following? |
| A. | Kidneys |
| B. | Gills |
| C. | Lungs |
| D. | Skin |
| Answer» C. Lungs | |
| 13. |
Which of the following is the most toxic form of nitrogenous waste? |
| A. | Guanine |
| B. | Ammonia |
| C. | Urea |
| D. | Uric acid |
| Answer» C. Urea | |
| 14. |
Which of the following is not the major form of nitrogenous wastes? |
| A. | Ammonia |
| B. | Urea |
| C. | Carbon dioxide |
| D. | Uric acid |
| Answer» D. Uric acid | |
| 15. |
Which of the following is not accumulated by the body of living organisms? |
| A. | Ammonia |
| B. | Carbon dioxide |
| C. | Urea |
| D. | Oxygen |
| Answer» E. | |