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Give one function of each of the following: (i) epiglottis _______________ (ii) alveoli _______________ - Junior Cycle Home Economics - Question 12 - 2019

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Question 12

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Give one function of each of the following: (i) epiglottis _______________ (ii) alveoli _______________

Worked Solution & Example Answer:Give one function of each of the following: (i) epiglottis _______________ (ii) alveoli _______________ - Junior Cycle Home Economics - Question 12 - 2019

Step 1

(i) epiglottis

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Answer

The epiglottis acts as a protective flap that covers the opening of the trachea during swallowing. This function prevents food and liquid from entering the trachea and, consequently, the lungs, thereby allowing for safe ingestion.

Step 2

(ii) alveoli

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Answer

The alveoli are the primary sites for gas exchange in the lungs. They facilitate the exchange of oxygen (O₂) and carbon dioxide (CO₂) between the air in the lungs and the bloodstream, ensuring that oxygen is absorbed while carbon dioxide is expelled.

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