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Q

Tell me? Human urine is usually acidic because :

Human urine is usually acidic because :

  • Option 1)

    excreted plasma proteins are acidic.

  • Option 2)

    potassium and sodium exchange generates acidity.

  • Option 3)

    hydrogen ions are actively secreted into the filtrate.

  • Option 4)

    the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries.

 
Answers (1)
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As we learnt

Characteristics of urine -

An adult human excretes, on an average, 1 to 1.5 litres of urine per day.

- wherein

The urine formed is a light yellow coloured watery fluid which is slightly acidic (pH-6.0) and has a characterestic odour.

 

 The pH of urine is 6.0 which is acidic due to secretion of Hions

H+ is proportional to 1/pH (low pH -> High H+)


Option 1)

excreted plasma proteins are acidic.

incorrect

Option 2)

potassium and sodium exchange generates acidity.

incorrect

Option 3)

hydrogen ions are actively secreted into the filtrate.

correct

Option 4)

the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries.

incorrect

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