Biology 5090 · O Level · Mammalian sense organs

Mammalian sense organs — practice question

As a person grows older, the eye’s lens becomes less elastic.
(a)[7]

Describe and explain how light rays from a near object travel through the eye but may not produce a sharply focused image for an older person.

(b)[3]

Suggest how reading glasses can bring the image into focus.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: light rays are bent/refracted/converged

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI