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Where and how is urea produced in ureote...

Where and how is urea produced in ureotelic animals ? What happens to the kidney filtrate in descending loop of Henle and collecting ducts ?

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Knowledge Check

  • What is removed from the filtrate at loop of Henle?

    A
    Water
    B
    Salts
    C
    Urea
    D
    All of these

  • Select the correct order of osmolarity changes in fillrate w.r.t. plasma in :- Bowmans capsul rarr PCT rarr Descending loop of henle rarr Ascending loop of henle rarr DCT End of collecting duct

    A
    Isotonic `rarr` Isotoni `rarr` Hypotonic `rarr` Hypertonic `rarr `Hypotoni `rarr` Hypotoni
    B
    Isotoni `rarr` Isotoni `rarr` Hypertonic `rarr `Hypertoni `rarr ` Hypotonic `rarr `Hypertoni
    C
    Isotoni `rarr` Hypertonic `rarr` Isotonic `rarr ` Hypertonic `rarr `Hypotonic `rarr` Hypertonic
    D
    Hypotonic `rarr` Isotonic `rarr` Hypertonic `rarr` Isotonic `rarr` Hypotonic `rarr` Hypertonic

  • Select the correct order of osmolarity changes in fillrate w. r. t plasma in :- Bowmans capsul rarr PCT rarr Descending loop of henle rarr Ascending loop of henle rarr OCT rarr End of collecting duct

    A
    Isotonic `rarr` Isotonic `rarr` Hypotonic `rarr` Hyper- tonic `rarr` Hypotonic `rarr` Hypotonic
    B
    Isotonic `rarr` Isotonic `rarr` Hypertonic `rarr` Hyper- tonic `rarr` Hypotonic `rarr` Hypertonic
    C
    Isotonic `rarr` Hypertonic `rarr` Isotonic `rarr` Hyper- tonic `rarr` Hypotonic `rarr` Hypertonic
    D
    Hypotonic `rarr` Isotonic `rarr` Hypertonic `rarr` Iso- tonic `rarr` HypotoniC `rarr` Hypertonic
    • PRADEEP-EXCRETORY PRODUCTS AND THEIR ELIMINATION-Additional Questions (LONG ANSWER TYPE)
    1. Where and how is urea produced in ureotelic animals ? What happens to ...

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    2. Describe the structure of a human kidney with the help of a labelled d...

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    3. Describe the functional anatomy of human nephron.

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    4. Explain the following : (a) Skin functions as an accessory organ. ...

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    5. Briefly state the mechanism of urine formation in human kidney.

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    6. Describe the hormonal feed back circuits in controlling renal function...

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    7. What is excretion ? Give an account of the excretory materials in anim...

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    8. Give an account of kidnet failure.

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    9. Give the physical properties and chemical composition of urine.

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    10. What is filtration pressure ? How is it developed ?

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    11. Discuss how the kidneys help in osmoregulation in mammals.

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    12. Describe the role of ADH and countercurrent system in forming hyperton...

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    13. Describe how urine is formed in the nephron through filtration, reabso...

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    14. Describe the process of kidney transplantation.

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    15. Distinguish between : (a) Ureotelism and uricotelism. (b) Sweat an...

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    16. Sketch and label the excretory system of man.

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    17. Study the given figure of excretory system of man carefully and answer...

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    18. Explain the mechanism of formation of concentrated urine in mammals.

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    19. Explain briefly, micturition and disorders of the excretory system.

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