(i)Draw a neat and labelled diagram of the human respiratory system.
(ii) Based on the diagram drawn above in (i), give a suitable term for each of the following descriptions:
1. A small cartilage flap that covers the glottis.
2. A structure covered with C-shaped cartilaginous rings.
3.Muscular portion that separates the thoracic cavity and the abdominal cavity.
4. Scientific name of the voice box.
5. Cell organelle involved in aerobic respiration.
6. The chemical process that takes place inside the cells.
7. The physical process involves in exchange of gases between the organism and the environment.

Explanation

### Step-by-Step Solution

#### (i) Draw a neat and labelled diagram of the human respiratory system.

1. **Start with the Nasal Cavity**: Draw a large oval shape at the top center of your paper. This represents the nasal cavity where air enters.
2. **Add the Mouth**: Below the nasal cavity, draw a smaller oval shape to represent the mouth.
3. **Draw the Pharynx**: Connect the nasal cavity and mouth to a funnel-shaped structure below, which represents the pharynx (throat).
4. **Include the Epiglottis**: At the base of the pharynx, draw a small flap-like structure that covers the glottis, which is the epiglottis.
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