MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 is not an adaptation of kangaroo rat? |
| A. | Drinks water |
| B. | Feeds on fatty seeds |
| C. | Excretes concentrated urine |
| D. | The nasal counter current system |
| Answer» B. Feeds on fatty seeds | |
| 2. |
Which of the following organism is not an osmoconformer? |
| A. | Hagfish |
| B. | Spongilla |
| C. | Marine invertebrates |
| D. | Skates |
| Answer» C. Marine invertebrates | |
| 3. |
What are osmoregulators? |
| A. | Animals which cannot change their body osmolarity |
| B. | Animals which can change their osmolarity sometimes |
| C. | Animals which can change their osmolarity |
| D. | Animals which cannot excrete out waste |
| Answer» B. Animals which can change their osmolarity sometimes | |
| 4. |
Starfishes are aminotelic organisms. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
What will happen if the diameter of the afferent arteriole is less than efferent arteriole? |
| A. | Dilute urine |
| B. | Concentrated urine |
| C. | No ultrafiltration |
| D. | Black urine |
| Answer» D. Black urine | |
| 6. |
In how many parts a nephron is divided? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 7. |
How many nephrons are present in each kidney? |
| A. | One million |
| B. | One billion |
| C. | One trillion |
| D. | Two million |
| Answer» B. One billion | |
| 8. |
Which of the following is responsible for the formation of Columns of Bertini? |
| A. | Medulla |
| B. | Renal pelvis |
| C. | Calyces |
| D. | Cortex |
| Answer» E. | |
| 9. |
Inside the kidney, there are three zones. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Through which of the following nerves and blood vessels enter the kidneys? |
| A. | Hilum |
| B. | Tubules |
| C. | Pelvis |
| D. | Medulla |
| Answer» B. Tubules | |
| 11. |
What is the average weight of a human kidney? |
| A. | 40 g |
| B. | 100 g |
| C. | 120 g |
| D. | 10 g |
| Answer» D. 10 g | |
| 12. |
Where are the kidneys situated? |
| A. | Between the 7<sup>th</sup> and 10<sup>th</sup> ribs |
| B. | Between the last thoracic and third lumbar vertebra |
| C. | Between the 8<sup>th</sup> and 9<sup>th</sup> ribs |
| D. | Between the first and second thoracic vertebra |
| Answer» C. Between the 8<sup>th</sup> and 9<sup>th</sup> ribs | |
| 13. |
Which of the following is not included in the excretory system of humans? |
| A. | Cloaca |
| B. | Kidneys |
| C. | Ureters |
| D. | Urethra |
| Answer» B. Kidneys | |