Biology 0610 · IGCSE · Sense organs

Sense organs — practice question

Fig. 1.1 contains a diagram of the eye.

(a)[2]

State the names of A and B, and place your answers on Fig. 1.1.

(b(i))[1]

Describe the change in B when a bright light shines on it.

(b(ii))[2]

Suggest how this change helps protect the eye.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A: iris” …