MCQ practice · SSC Biology Board questions · Chapter 8: Excretory System
Which one keeps the acid-base balance in the body?
Think it through first, then pick an option.
- a Liver
- b Stomach
- c Small intestine
- d Kidney
Answer and explanation
Correct answer: d Kidney
The kidney keeps the balance of acid and base in the body.
Why the other options are wrong
- a Liver: The liver makes bile; it is the kidney that keeps the acid-base balance.
- b Stomach: The stomach takes part in digestion, not in acid-base balance.
- c Small intestine: The small intestine absorbs digested food; it does not keep the acid-base balance.
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