Q2 of 38 Page 46

Fill in the blanks:

A flap like muscular valve controls movement of air and food is ________________.

A flap like muscular valve controls movement of air and food is epiglottis.

Epiglottis is a flap of tissue found at the most superior part of the larynx. It acts as a gatekeeper who closes and protects the gate (trachea) from the foods and drinks and directs it into the proper direction (oesophagus).


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25

Prepare a cartoon on discussion between hemoglobin and chlorophyll about respiration (AS7)

 1

Fill in the blanks:

Exhaled air contains ________________ and _________________.

 3

Fill in the blanks:

Energy currency of the cell is called ____________________.

 4

Fill in the blanks:

Lenticels are the respiratory organs exists in ___________part of plant.