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In distal convoluted tubule of the nephr...

In distal convoluted tubule of the nephrons

A

Na reabsorption requires energy

B

Secretion of K ions does not requires energy

C

Water reabsorption requires energy

D

Ammonia is secreted

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Reabsorption of `Na^(+)` in the tubules is an active process.
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Proximal convoluted tubule differs from distal convoluted tubule of nephron in

_____process takes place in proximal convoluted tubule of nephrons.

Knowledge Check

  • Removal of proximal convoluted tubule from the nephron will be result in

    A
    The urine will be more dilute
    B
    There will be no urine formation
    C
    There will be hardly any change in the quality and quantity of urine formed
    D
    The urine will be more concentrated

  • Read the given statements regarding human excretory system and select the correct ones. (i). Presence of glucose in urine is known as uremia. (ii). Distal convoluted tubule (DCT) selectively secretes hydrogen ions, ammonia and potassium ions into the filtrate. (iii). Macule densa is formed by cellular modification in the distal convoluted tubule and the afferent arteriole at their contact location. (iv). Atrial natriuretic factor (ANF) can cause vasoconstriction when blood flow is low to the atria of the heart.

    A
    (i) and (ii)
    B
    (i) and (iii)
    C
    (ii) and (iii)
    D
    (iii) and (iv)

  • Proximal convoluted tubule of nephron is responsible for

    A
    filtration of blood
    B
    maintenance of glomerular filtration rate
    C
    selective reabsorption of glucose, amino acid, NaCl and water
    D
    reabsorption of salts only

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    Removal of proximal convulated tubule from the nephron will result in

    Which of the following statements is/are true (1) Urine is hypertonic in distal convoluted tubule (2) When the urine passes into collecting tubule, it becomes hypotonic (3) Urine is isotonic in proximal convoluted tubule (4) Urine becomes more and more hypotonic as it passes through Henle's loop

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