Breathing and Respiration (Respiratory Organs in Animals, Respiratory System in Humans,...) NEET Questions

Biology - Human Physiology

Breathing and Respiration (Respiratory Organs in Animals, Respiratory System in Humans,...) MCQ Questions


7.
Asthma is characterized by:
A.
Inflammation and narrowing of the airways
B.
Infection of the alveoli
C.
Accumulation of fluid in the pleural cavity
D.
Collapse of the lung
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ANSWER :
A. Inflammation and narrowing of the airways
8.
The respiratory control center is located in the:
A.
Cerebrum
B.
Cerebellum
C.
Medulla oblongata
D.
Hypothalamus
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ANSWER :
C. Medulla oblongata
9.

Hemoglobin has the highest affinity for:

A.

Oxygen

B.

Carbon dioxide

C.

Carbon monoxide

D.

Nitrogen

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ANSWER :

C. Carbon monoxide

10.

The functional unit of the lung is the:

A.

Bronchus

B.

Bronchiole

C.

Alveolus

D.

Pleura

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ANSWER :

C. Alveolus

11.
Which of the following statements about the trachea is incorrect?
A.
It is supported by C-shaped cartilaginous rings.
B.
It connects the larynx to the bronchi.
C.
It is lined with ciliated epithelium.
D.
It collapses during expiration.
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ANSWER :
D. It collapses during expiration.
12.
The primary site of gas exchange in the human lungs is:
A.
Bronchi
B.
Bronchioles
C.
Alveolar ducts
D.
Alveolar sacs
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ANSWER :
D. Alveolar sacs