Alveoli

Q. What are the types of cells present in the alveoli?

1. pneumocytes
2. acinocytes
3. alveocytes
4. macrophages

Q. The figure given below shows a small part of the human lung where exchange of gases takes place. In which one of the options given below, the one part, A, B, C or D is correctly identified along with its function.

1. B : Red blood cell - Mainly transport of ${\mathrm{CO}}_2$
2. A : Alveolar cavity - Main site of exchange of respiratory gases
3. D : Capillary wall - Exchange of $O_2$ and ${\mathrm{CO}}_2$ takes place here
4. C : Arterial capillary - Passes oxygen to tissue

Q. Which structure of the lungs is directly involved in $\frac{O_2}{C{O}_2}$ exchange between air and blood capillary?

1. Bronchi
2. Trachea
3. Alveoli
4. Secondary bronchi

Q.

Match the following:
$\begin{array}{cc}ColumnI& ColumnII\\ i.Larynx& a.Airsacs\\ ii.Trachea& b.Lidoflarynx\\ iii.Alveoli& c.Voicebox\\ iv.Epiglottis& d.Windpipe\end{array}$

1. i - c, ii - d, iii - b, iv - a

2. i.- d, ii - b, iii - a, iv - c

3. i.- c, ii - d, iii - a, iv - b

4. i - a, ii - d, iii - c, iv - b

Q.

Match the following:
$\begin{array}{cc}ColumnI& ColumnII\\ i.Larynx& a.Airsacs\\ ii.Trachea& b.Lidoflarynx\\ iii.Alveoli& c.Voicebox\\ iv.Epiglottis& d.Windpipe\end{array}$

1. i - c, ii - d, iii - b, iv - a

2. i.- d, ii - b, iii - a, iv - c

3. i.- c, ii - d, iii - a, iv - b

4. i - a, ii - d, iii - c, iv - b

Q.

Which of the following provide the greatest surface area for gas exchange?

1. Glottis

2. Alveoli

3. Pharynx

4. Bronchioles

Q. Which of the following is not part of the conducting zone of the respiratory system?

1. Oral cavity
2. Trachea
3. Bronchioles
4. Alveolar sacs

Q. Match the following parts to their descriptions.

1. Lid of larynx
2. Voice box
3. Wind pipe
4. Air sacs

Q. The figure given below shows a small part of the human lung where the exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?

1. B : Red blood cell - transport of CO2 mainly
2. C : Arterial capillary - passes oxygen to tissues
3. A : alveolar cavity - main site of exchange of respiratory gases
4. D : Capillary wall - exchange of O2 and CO2 takes place here

Q. The transfer of gases between blood and alveoli occur through the process of ________.

1. osmosis
2. diffusion
3. active transport
4. none of the above

Q. The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?

1. B: Red blood cell - Transport of $C{O}_2$ mainly
2. C: Arterial capillary - Passes oxygen to tissues
3. A: Alveolar cavity - Main site of exchange of respiratory gases
4. D: Capillary wall - Exchange of $O_2$ takes place here only

Q. The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function?

1. B: Red blood cell - Transport of $C{O}_2$ mainly
2. C: Arterial capillary - Passes oxygen to tissues
3. A: Alveolar cavity - Main site of exchange of respiratory gases
4. D: Capillary wall - Exchange of $O_2$ takes place here only