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


1.
Which part of the respiratory system is primarily responsible for the exchange of gases?
A.
Trachea
B.
Bronchi
C.
Alveoli
D.
Larynx
😑 View Answer Rough Work Error
ANSWER :
C. Alveoli
2.
The volume of air remaining in the lungs after a normal expiration is called:
A.
Tidal Volume
B.
Residual Volume
C.
Expiratory Reserve Volume
D.
Functional Residual Capacity
😑 View Answer Rough Work Error
ANSWER :
D. Functional Residual Capacity
3.
Which respiratory disorder is characterized by the destruction of alveolar walls, leading to reduced surface area for gas exchange?
A.
Asthma
B.
Emphysema
C.
Bronchitis
D.
Pneumonia
😑 View Answer Rough Work Error
ANSWER :
B. Emphysema
4.
Occupational respiratory disorders are commonly seen in workers exposed to:
A.
Pollen grains
B.
Dust from mining
C.
Cold temperatures
D.
High altitudes
😑 View Answer Rough Work Error
ANSWER :
B. Dust from mining
5.
The primary muscle involved in the process of inhalation is:
A.
Intercostal muscles
B.
Diaphragm
C.
Abdominal muscles
D.
Pectoral muscles
😑 View Answer Rough Work Error
ANSWER :
B. Diaphragm
6.
During strenuous exercise, the respiratory rate increases primarily due to:
A.
Decrease in blood oxygen levels
B.
Increase in blood carbon dioxide levels
C.
Decrease in blood pH
D.
Increase in blood pH
😑 View Answer Rough Work Error
ANSWER :
B. Increase in blood carbon dioxide levels