03. EXCHANGE OF GASES(NCERT)
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BREATHING and EXCHANGE OF GASES

278098 Which of the following normally contains the highest concentration of oxygen ?

1 body cells
2 inhaled air
3 air in the pulmonary trunk
4 blood entering the lungs
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES

278099 Which of the following statement is incorrect?

1 Diffusion membrane is made up of 3-major layers.
2 Solubility of$\text{C}{{\text{O}}_{2}}$ is higher than ${{\text{O}}_{2}}$ by 25 times.
3 Breathing volumes are estimated by spirometer.
4 High conc. of hydrogen ions favours oxyhaemoglobin formation.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES

278100 In which one of the options given below, the one part A, $B,C$ or $D$ is correctly identified along with its function?

1 A-Alveolar cavity- It is the main site of exchange of respiratory gases.
2 B-Red blood cell- It transports mainly carbon dioxide.
3 C-Arterial capillary-It passes oxygen to tissues.
4 D- Capillary wall- Here, exchange of${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ takes place.
NCERT PAGE-273/N-188
BREATHING and EXCHANGE OF GASES

278101 The factor which does not affect the rate of alveolar diffusion is

1 solubility of gases
2 thickness of the membranes
3 pressure gradient
4 reactivity of the gases
NCERT Page-272 & 273/ N -187
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BREATHING and EXCHANGE OF GASES

278098 Which of the following normally contains the highest concentration of oxygen ?

1 body cells
2 inhaled air
3 air in the pulmonary trunk
4 blood entering the lungs
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES

278099 Which of the following statement is incorrect?

1 Diffusion membrane is made up of 3-major layers.
2 Solubility of$\text{C}{{\text{O}}_{2}}$ is higher than ${{\text{O}}_{2}}$ by 25 times.
3 Breathing volumes are estimated by spirometer.
4 High conc. of hydrogen ions favours oxyhaemoglobin formation.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES

278100 In which one of the options given below, the one part A, $B,C$ or $D$ is correctly identified along with its function?

1 A-Alveolar cavity- It is the main site of exchange of respiratory gases.
2 B-Red blood cell- It transports mainly carbon dioxide.
3 C-Arterial capillary-It passes oxygen to tissues.
4 D- Capillary wall- Here, exchange of${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ takes place.
NCERT PAGE-273/N-188
BREATHING and EXCHANGE OF GASES

278101 The factor which does not affect the rate of alveolar diffusion is

1 solubility of gases
2 thickness of the membranes
3 pressure gradient
4 reactivity of the gases
NCERT Page-272 & 273/ N -187
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BREATHING and EXCHANGE OF GASES

278098 Which of the following normally contains the highest concentration of oxygen ?

1 body cells
2 inhaled air
3 air in the pulmonary trunk
4 blood entering the lungs
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES

278099 Which of the following statement is incorrect?

1 Diffusion membrane is made up of 3-major layers.
2 Solubility of$\text{C}{{\text{O}}_{2}}$ is higher than ${{\text{O}}_{2}}$ by 25 times.
3 Breathing volumes are estimated by spirometer.
4 High conc. of hydrogen ions favours oxyhaemoglobin formation.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES

278100 In which one of the options given below, the one part A, $B,C$ or $D$ is correctly identified along with its function?

1 A-Alveolar cavity- It is the main site of exchange of respiratory gases.
2 B-Red blood cell- It transports mainly carbon dioxide.
3 C-Arterial capillary-It passes oxygen to tissues.
4 D- Capillary wall- Here, exchange of${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ takes place.
NCERT PAGE-273/N-188
BREATHING and EXCHANGE OF GASES

278101 The factor which does not affect the rate of alveolar diffusion is

1 solubility of gases
2 thickness of the membranes
3 pressure gradient
4 reactivity of the gases
NCERT Page-272 & 273/ N -187
For More Updates join with Us
BREATHING and EXCHANGE OF GASES

278098 Which of the following normally contains the highest concentration of oxygen ?

1 body cells
2 inhaled air
3 air in the pulmonary trunk
4 blood entering the lungs
NCERT Page-272 / N-187
BREATHING and EXCHANGE OF GASES

278099 Which of the following statement is incorrect?

1 Diffusion membrane is made up of 3-major layers.
2 Solubility of$\text{C}{{\text{O}}_{2}}$ is higher than ${{\text{O}}_{2}}$ by 25 times.
3 Breathing volumes are estimated by spirometer.
4 High conc. of hydrogen ions favours oxyhaemoglobin formation.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES

278100 In which one of the options given below, the one part A, $B,C$ or $D$ is correctly identified along with its function?

1 A-Alveolar cavity- It is the main site of exchange of respiratory gases.
2 B-Red blood cell- It transports mainly carbon dioxide.
3 C-Arterial capillary-It passes oxygen to tissues.
4 D- Capillary wall- Here, exchange of${{\text{O}}_{2}}$ and $\text{C}{{\text{O}}_{2}}$ takes place.
NCERT PAGE-273/N-188
BREATHING and EXCHANGE OF GASES

278101 The factor which does not affect the rate of alveolar diffusion is

1 solubility of gases
2 thickness of the membranes
3 pressure gradient
4 reactivity of the gases
NCERT Page-272 & 273/ N -187
NEET DIGITAL LIBRARY