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


13.
During inspiration, the diaphragm:
A.
Relaxes and moves upward
B.
Contracts and moves downward
C.
Relaxes and moves downward
D.
Contracts and moves upward
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ANSWER :
B. Contracts and moves downward
14.

The volume of air inspired or expired during normal respiration is called:

A.

Tidal Volume (TV)

B.

Inspiratory Reserve Volume (IRV)

C.

Expiratory Reserve Volume (ERV)

D.

Residual Volume (RV)

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ANSWER :

A. Tidal Volume (TV)

15.
Which of the following is a chronic obstructive pulmonary disease (COPD)?
A.
Asthma
B.
Tuberculosis
C.
Emphysema
D.
Pneumonia
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ANSWER :
C. Emphysema
16.
Carbon dioxide is transported in the blood majorly as:
A.
Dissolved COâ‚‚
B.
Carbaminohemoglobin
C.
Bicarbonate ions
D.
Carbonic acid
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ANSWER :
C. Bicarbonate ions
17.

The Hering-Breuer reflex is associated with:

A.

Regulation of heart rate

B.

Prevention of over-inflation of the lungs

C.

Initiation of coughing

D.

Control of blood pressure

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ANSWER :

B. Prevention of over-inflation of the lungs

18.
Which of the following conditions is characterized by inflammation of the bronchi?
A.
Asthma
B.
Bronchitis
C.
Emphysema
D.
Silicosis
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ANSWER :
B. Bronchitis