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WAEC Biology 2017 Question 19

Question 19

Sense Organs

When viewing an object that is close to the human eye, the

  1. A.eye lens becomes thin.
  2. B.cilliary muscles relax.
  3. C.suspensory ligaments become taut.
  4. D.eye lens become fat.
Show the answer and explanation

Answer: D (eye lens become fat.)

Explanation

To focus a near object the ciliary muscles contract, the suspensory ligaments slacken and the elastic lens becomes thicker (fatter), bending light more.