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WAEC Biology 1988 Question 16

Question 16

Excretion

Which of the following statements on urine production is not correct?

  1. A.Concentrated urine is produced under the control of antidiuretic hormone
  2. B.The total volume of urine produced depends on the need for water excretion
  3. C.if there is an excess intake of water, dilute urine is excreted
  4. D.if there is a shortage of water in the body the volume of urine produced decreases
  5. E.in the presence of antidiuretic hormone dilute urine is produced
Show the answer and explanation

Answer: E (in the presence of antidiuretic hormone dilute urine is produced)

Explanation

Antidiuretic hormone makes the kidney tubules reabsorb more water, so it produces small amounts of concentrated urine, not dilute urine.