Biology 5090 · O Level · Specialised cells, tissues and organs

Specialised cells, tissues and organs — practice question

(a)[3]

Describe what the cilia in the trachea do.

(b)[7]

State the characteristics of, and describe the roles of, each component shown in Fig. 6.1. Make reference to the named structures in your answer.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The cilia move mucus along” …