Human urine is usually acidic because...

Human urine is usually acidic because

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

Excreted plasma proteins are acidic

potassium and sodium exchange generates acidity

hydrogen ions are actively secreted into the filtrate

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Human urine is invariably acidic because

the blood entering the kidney is acidic

kidneys selectively filter out the acidic substances of blood Into urine

kidneys secrete acids to keep urine acidic

urine is made acidic in urinary bladder

increase in transpiration

active absorption

low osmotic potential in soil

passive absorption

The energy of interaction between charged ions is greater than that between neutral molecules

it does not involve bond breaking

the number of collisions between ions per unit volume per second are very large

these reactions are highly exothermic