Explore topic-wise MCQs in Biology.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

In which respiratory part does the diffusion of gas take place?

A. Alveoli
B. Bronchi
C. Bronchioles
D. Trachea
Answer» B. Bronchi
2.

Pleura is _______ layered.

A. Not
B. Single
C. Double
D. Triple
Answer» D. Triple
3.

Trachea is a straight tube extending up to the ________

A. end of pharynx
B. middle of larynx
C. posterior of the thoracic cavity
D. anterior of the thoracic cavity
Answer» E.
4.

Which network comprises the lung?

A. Bronchi and bronchioles
B. Trachea, tracheoles
C. Bronchi, bronchioles, and alveoli
D. Trachea only
Answer» D. Trachea only
5.

Which of the following is not a characteristic of alveoli?

A. Thick
B. Thin
C. Irregular walled
D. Vascularized
Answer» B. Thin
6.

Trachea, bronchi, and bronchioles are all supported by _______

A. incomplete cartilaginous rings
B. complete cartilaginous rings
C. in-cartilaginous rings
D. bones
Answer» B. complete cartilaginous rings
7.

At which thoracic vertebrae does the trachea branch?

A. Sixth
B. Fourth
C. Fifth
D. Second
Answer» D. Second
8.

________ prevents the food from entering into the glottis during swallowing.

A. Larynx
B. Peri glottis
C. Post glottis
D. Epiglottis
Answer» E.
9.

Which of the following part is known as the soundbox of our body system?

A. Vocal gland
B. Pharynx
C. Larynx
D. Nasopharynx
Answer» D. Nasopharynx
10.

The common passage for both food and air is called the esophagus.

A. True
B. False
Answer» C.
11.

Which of the following is not part of the human respiratory system?

A. Pharynx
B. Alveoli
C. Trachea
D. Lumen
Answer» E.