Home
Class 12
BIOLOGY
Assertion :- Mammals have the ability to...

Assertion `:-` Mammals have the ability to produce a concentrated urine.
Reason `:-` Counter current mechanism occurs in vasa recta and Henle's loop.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion .

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • HUMAN PHYSIOLOGY -I

    ALLEN|Exercise BEGINNERS BOX-3|10 Videos

  • HUMAN PHYSIOLOGY -I

    ALLEN|Exercise BEGINNERS BOX-4|12 Videos

  • HUMAN PHYSIOLOGY -I

    ALLEN|Exercise Exercise -III (NCERT BASED QUESTIONS)|63 Videos

  • HUMAN HEALTH AND DISEASE

    ALLEN|Exercise Question|116 Videos

  • HUMAN REPRODUCTION

    ALLEN|Exercise Question|92 Videos

Similar Questions

Explore conceptually related problems

Assertion: The Henle's loop and vasa recta play a significant role in producing a concentrated urine. Reason: The counter current arrangement of Henle's loop and vasa recta helps in this.

Statement (A): Humans have the ability to produce concentrated urine. Statement (B) : Majority of the nephrons in the human kidney have very long loops of Henle and well-developed vasa recta which are involved in countercurrent mechanism.

Urine is concentrated in loop of Henle in

The ability of producing concentrated (hypertonic) urine in vertebrates generally depends on

The ability of producing concentrated (hypertonic) urine in vertebrates generally depends on

Assertion :- Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. Reason :- Counter current mechanism helps to maintain a concentration gradient in the medullary interstitium.

Read the statements given below A. The renal cortex extends between the medullary pyramids as Columns of Bertini. B. ATP molecules are used in kidneys to convert NH3 to urea. C. Reabsorption of water in PCT and loop of Henle is obligatory. D. High medullary osmolarity is mainly developed due to NaCI and urea by counter current mechanism of vasa recta and loop of Henle. The correct statements are

Which of the following is not having significant/any role in maintaining counter current mechanism ?

We can produce concentrated? Dilute urine. This is facilitated by a special mechanism. Identify the mechanism.

We can produce concentrated? Dilute urine. This is facilitated by a special mechanism. Identify the mechanism.

ALLEN-HUMAN PHYSIOLOGY -I-EXERCISE-IV(Assertion & Reason)
  1. Assertion : While on going down the loop of Henle, the filtrate become...

    Text Solution

    |

  2. Assertion :- Conditional reabsorption of Na^(o+) and water takes place...

    Text Solution

    |

  3. Assertion :- Mammals have the ability to produce a concentrated urine....

    Text Solution

    |

  4. Assertion :- An increase in glomerular blood pressure can activate the...

    Text Solution

    |

  5. Assertion :- An increase in body fluid volume activate osmoreceptors ,...

    Text Solution

    |

  6. Assertion :- Angiotensin II, activates the adrenall cortex to release ...

    Text Solution

    |

  7. Assertion :- Nearly 99 percent of the filtrate has to be reabsorbed by...

    Text Solution

    |

  8. Assertion :- The primary function of sweat is to facilitate a cooling ...

    Text Solution

    |

  9. Assertion :- The descending limb of loop of Henle is permeable to wate...

    Text Solution

    |

  10. Assertion :- In cortical nephrone, the loop of Henle is too short and ...

    Text Solution

    |

  11. Assertion :- ADH prevents diuresis. Reason :- ADH also affect the ki...

    Text Solution

    |

  12. Assertion :- The JGA plays a complex regulaltory role. Reason :- An...

    Text Solution

    |

  13. Assertion :- Angiotensin II is a powerful vasconstrictor Reason :- A...

    Text Solution

    |

  14. Assertion :- An increase in blood flow to the atria of heart can caus...

    Text Solution

    |

  15. Assertion :- Feedback mechanism for regulation of kidney involve hypot...

    Text Solution

    |

  16. Assertion :- Analysis of urine helps in clinical diagnosis of many met...

    Text Solution

    |

  17. Assertion :- Haemodialysis method is used in case of kidney failure. ...

    Text Solution

    |

  18. Assertion :- Human kidneys can produce urine nearly four times concent...

    Text Solution

    |

  19. Assertion :- Peritubular capillaries secrete substances in the convolu...

    Text Solution

    |

  20. Assertion :- Ultrafiltration takes place in presence of effective filt...

    Text Solution

    |