Breathing and Exchange of Gases

The figure given below shows a small part of human lung where exchange of gas 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?

Match the following columns and select the correct option:- Column-I Column-II (a) Pneumotaxiccentre (i) Alveoli (b) $O_{2}$ Dissociation curve (ii) Pons region of brain (c) Carbonic anhydrase (iii) Haemoglobin (d)…

Match the items given in Column I with those in Column II and select the correct option given below: Column - I Column - II a. Tidal volume i. 2500 - 3000 mL b. Inspiratory Reserve volume ii. 1100 - 1200 mL c.…

Select the correct events that occur during inspiration. (a) Contraction of diaphragm (b) Contraction of external intercostalmuscles (c) Pulmonary volume decreases (d) Intrapulmonarypressure increases

Assertion : The dorsal respiratory group (DRG) present in the dorsal portion of medulla oblongata mainly causes expiration. Reason : The ventral respiratory group (VRG) on the ventrolateral part of medulla oblongata…

Assertion : Extra oxygen consumption in human body is known as oxygen debt.Reason : The extra oxygen is required by the body to oxidise the accumulated lactic acid produced during strenuous exercise.

Oxygen binding to haemoglobin in blood is

All veins carry deoxygenated blood except

The Total Lung Capacity(TLC) is the total volume of air accomodated in the lungs at the end of a forced inspiration. This includes:

Match List-I with List-II: $\begin{array}{|l|l|r|l|}\hline & \text{List-I} & & \text{List-II} \\ \hline A. & \text{Residual Volume} & I. & \begin{array}{l} \text{Maximum volume of air that can be breathed in after…

Under normal physiological conditions in human being every \$100ml\$ of oxygenated blood can deliver ___________ \$ml\$ of \$O_{2}\$ to the tissues.

Match List I with List II :List I (Respiratory Volume)List II (Capacity in mL)A. ERV (Expiratory Reserve Volume)I. $2500 - 3000$ mLB. RV (Residual Volume)II. $500$ mLC. IRV (Inspiratory Reserve Volume)III. $1000 - 1100$…