Explore topic-wise MCQs in Biology.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

Fibrosis may be caused due to_______

A. cigarette smoking
B. snorting
C. inflammation of alveoli
D. dust particles
Answer» E.
Discussion
2.

What causes increase in respiratory rate?

A. Increase in body temperature
B. Decrease in carbon dioxide
C. Decrease in blood pressure
D. Increased oxygen
Answer» B. Decrease in carbon dioxide
Discussion
3.

Suffocation is caused due to_______

A. increase in carbon dioxide
B. decrease in oxygen
C. decrease in hydrogen ions
D. increase in oxygen
Answer» B. decrease in oxygen
Discussion
4.

What changes may be observed due to increase in carbon dioxide and hydrogen ions body?

A. Decrease in breathing rate
B. Increase in breathing rate
C. No change in breathing rate
D. Increase in lung volume
Answer» C. No change in breathing rate
Discussion
5.

Emphysema is marked by ______

A. inflammation of nasal passage
B. twisting of trachea
C. filling of mucous in lungs
D. damage of alveolar walls
Answer» E.
Discussion
6.

Swelling and itching in bronchi is a symptom of __________

A. bronchitis
B. asthma
C. fibrosis
D. asphyxia
Answer» B. asthma
Discussion
7.

Cigarette smoking causes______________

A. bronchitis
B. fibrosis
C. emphysema
D. asthma
Answer» D. asthma
Discussion
8.

Low oxygen supply to tissues is scientifically known as ________

A. bronchitis
B. emphysema
C. asphyxia
D. hypoxia
Answer» E.
Discussion
9.

Which of the following diseases can be found in workers working in a mill?

A. Emphysema
B. Occupational respiratory disorders
C. Bronchitis
D. Asthma
Answer» C. Bronchitis
Discussion
10.

Asthma is caused due to inflammation of ______________

A. bronchi and broncioles
B. alveoli
C. trachea
D. pharynx
Answer» B. alveoli
Discussion