Question

(a) Fig. 1.1 is a diagram of the structure of the human eye.

   

Table 1.1 shows the names and functions of some of the parts labelled A–G in Fig. 1.1.
Complete Table 1.1.

(b) Fig. 1.2 shows the response of the eye to a stimulus.

     

     (i) State the name of the response shown in Fig. 1.2.

     (ii) State the stimulus and the effector that cause the response shown in Fig. 1.2.

           stimulus ……………………………………………………………………………………………
           effector ……………………………………………………………………………………………..

(c) The response shown in Fig. 1.2 is an involuntary action.
       Tick (✓) the boxes to show two other involuntary actions.

                         

▶️Answer/Explanation

Ans : 

1(a) 

1(b)(i) pupil reflex ;

1(b)(ii) stimulus (change in) light (intensity) ;

                 effector circular muscles ;

1(c)