Biology 5090 · O Level · Mammalian sense organs

Mammalian sense organs — practice question

The table illustrates how the thickness of the eye lens varies when focusing on objects at different distances from the front of the eye.
(a(i))[2]

Describe the pattern shown in the table data.

(a(ii))[4]

Explain how named parts of the eye alter lens thickness when focusing on an object that is farther away from the front of the eye.

(b)[3]

Suggest and explain which type of lens would be most appropriate for this older person.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: With increasing distance from the eye, lens thickness falls (inverse relationship)

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