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WAEC Biology 1995 Question 17

Question 17

Excretion

Reabsorption of the metabolic products along the kidney tubules is made possible by the

  1. A.closeness of the intestine to the kidney
  2. B.convoluted nature of the tubules
  3. C.presence of convoluted tubules in the medulla
  4. D.presence of network of capillaries around the convoluted tubules
  5. E.joining of the main collecting tubules to the kidney tubules
Show the answer and explanation

Answer: D (presence of network of capillaries around the convoluted tubules)

Explanation

Useful substances pass from the tubules into the capillaries wrapped around them.