MHT-CET

Breathing and Exchange of question bank (Biology)

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Q1.

Which one of the following is NOT a respiratory center which regulates breathing in human?

(A)
Apneustic center in the medulla.
(B)
Dorsal group of neurons in the medulla.
(C)
Ventro-lateral group of neurons in the medulla.
(D)
Pneumotaxic center in the pons.
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Q2.

In the lungs, the alveolar air is separated from blood by ______.

(A)
a layer of squamous epithelium and smooth muscles.
(B)
a layer of squamous epithelium and a layer of transitional epithelium
(C)
two layers of simple squamous epithelium
(D)
two layers of tunica externa, interna and tunica media
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