Tag: CSIR NET Life Science Previous Year Questions and Solution on Respiratory System

Hemoglobin (Hb) transports CO2 in venous blood as carbamates. The following statements refer to the formation of these carbamates: A. CO2 interacts with amino terminal nitrogens of Hb polypeptide chains […]

Transport of oxygen and CO2 in blood is (1) O2 in hemoglobin bound form and CO2 in dissolved form (2) CO2 in hemoglobin bound form and O2 in dissolved form […]

Elevated level of RBC and high erythropoietin level are adaptation for (1) High altitude (2) Poles (3) Low altitudes (4) Marine  Introduction At high altitudes, reduced atmospheric oxygen pressure creates […]

Air inhaled during breathing contains principal gases in order N2>O2>CO2>H2O. The gases in exhaled air would be in order (1) N2>CO2>O2>H2 (2) N2>O2>CO2>H2 (3) N2>CO2>H2>O2                                              (4) N2>H2>CO2>CO2   Introduction […]

The human body can adapt to high altitude through (1) Increase in RBC count (2) Decrease in RBC count (3) Increase affinity for oxygen by haemoglobin (4) Decrease affinity for […]

In haemoglobin affinity for oxygen increases when there is (1) High H+ (2) High pCO2 (3) High temperature (4) High 2,3 BPG   Introduction The affinity of hemoglobin (Hb) for […]

The pressure in the ‘space’ between lungs and chest wall is known as intrapleural pressure. The following statements are related to the intrapleural pressure at different phases of respiration: A. […]

If we compare the cutaneous respiration in amphibian and pulmonary mammals we will find that gas exchange is due to (1) Positive pressure in both amphibian and mammals (2) Negative […]

Athletes are usually trained at high altitudes because- (1) To increase the number of RBC (2) To form modified haemoglobin (3) To increase number of WBC (4) To increase the […]