Home
Class 11
BIOLOGY
Define tubular reabsorption and tubular ...

Define tubular reabsorption and tubular secretion.

Text Solution

Verified by Experts

As glomerular filtrate courses through tubules, its composition, osmotic pressure and pH change progressively. This is largely due to reabsorption of water and many solutes from it in the tubules. This process is called tubular reabsorption. On the other hand, those products of metabolism which are not at all required by the body and are rather injurious to health, are secreted out by tubular epithelium in the tubular filtrate. This process is called tubular secretion.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    ICSE|Exercise NCERT EXERCISES WITH ANSWER |8 Videos

  • ENZYMES

    ICSE|Exercise REVIEW QUESTIONS (LONG ANSWER TYPE QUESTIONS) |6 Videos

  • KINGDOM FUNGI

    ICSE|Exercise REVIEW QUESTIONS (LONG ANSWER TYPE QUESTIONS)|5 Videos

Similar Questions

Explore conceptually related problems

Complete the following (a) Urinary excretion = tubular reabsorption + tubular secretion- (b) Dialysis fluid = plasma -

In the kidney , the formation of urine involve the following processes arranged as (a) Glomerular filtration, reabsorption, and tubular secretion (b) Reabsorption, filtration, and secretion (c) Secretion, absorption, and filtration (d) Filtration, secretion, and reabsorption

Knowledge Check

  • The given figure shows reabsorption and secretion of major substances at different parts of the nephron. The movelment of which of the following substances is wrongly depicted?

    A
    NaCl and `K^(+)` at DCT
    B
    NaCl and `NH_(3)` at PCT
    C
    NaCl at ascending limb of loop of Henle
    D
    `H_(2)O` at descending limb of loop of Henle

    • Similar Questions

    Explore conceptually related problems

    Route of tubular secretion is

    Where do ultrafiltration, reabsorption and secretion occur in a nephron?

    Aldosterone stimulates sodium reabsorption and potassium secretion mainly in

    Vasopressin stimulates reabsorption of water and reduction of urine secretion. Hence vasopressin is otherwise called

    Describe in brief : Tubular secretion

    Read the following statements (a)in tubular reabsorption, substances like glucose, amino acid,Na^+, nitrogenous waste etc are reabsorbed by active transport, while reabsorption of water occur by passive transport (b) 50 -60% of electrolytes and water are absorbed by brush bordered cuboidal epithelium of PCT(c) conditional reabsorption of Na^+ and selective secretion of H^+ and K^+ occurs in DCT(d) filtrate gets concentrated as it moves upward in ascending limb of loop of henle. find the correct option regarding true or false statement.

    If the afferent arteriole diameter is less than efferent arteriole than what happen ? (a) No effect (b) Ultrafiltration reaction is slow (c) Ultrafiltration is not possible (d) Ultrafiltration will stop and tubular secretion will start.

    Home
    Profile