Exchange of Gases
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BIOXI17: BREATHING AND EXCHANGE OF GASES

338691 Which of the following are equal?

1 \(\mathrm{pCO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the resting tissues
2 \(\mathrm{pO}_{2}\) in the deoxygenated blood and \(\mathrm{pCO}_{2}\) in the resting tissues
3 \(\mathrm{pO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the oxygenated blood
4 \(\mathrm{pCO}_{2}\) in the carotid artery and \(\mathrm{pCO}_{2}\) in the pulmonary artery
BIOXI17: BREATHING AND EXCHANGE OF GASES

338692 Almost same \(\mathrm{pCO}_{2}\) in humans is found in

1 Deoxygenated blood and alveoli
2 Tissues and oxygenated blood
3 Tissues and deoxygenated blood
4 Deoxygenated blood and oxygenated blood
BIOXI17: BREATHING AND EXCHANGE OF GASES

338693 What is the partial pressure of \(\mathrm{O}_{2}\) and \(\mathrm{CO}_{2}\) in atmospheric air?

1 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{159}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{0}}{\rm{.3}}\;{\rm{mmHg}}\)
2 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{104}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
3 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{45}}\;{\rm{mmHg}}\)
4 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{95}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
BIOXI17: BREATHING AND EXCHANGE OF GASES

338694 Inspired air in alveoli remains in close contact with blood. The following layers are present between two -
i. Capillary endothelial membrane
ii. Capillary basement membrane.
iii. Thin interstitial space.
iv. Alveolar epithelial basement membrane.
v. Alveolar epithelium.
Marks the correct sequence during diffusion of \(\mathrm{CO}_{2}-\)

1 iv, i, iii, v, ii
2 v, iv, iii, ii, i
3 i, ii, iii, iv, v
4 ii, v, iii, i, iv
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BIOXI17: BREATHING AND EXCHANGE OF GASES

338691 Which of the following are equal?

1 \(\mathrm{pCO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the resting tissues
2 \(\mathrm{pO}_{2}\) in the deoxygenated blood and \(\mathrm{pCO}_{2}\) in the resting tissues
3 \(\mathrm{pO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the oxygenated blood
4 \(\mathrm{pCO}_{2}\) in the carotid artery and \(\mathrm{pCO}_{2}\) in the pulmonary artery
BIOXI17: BREATHING AND EXCHANGE OF GASES

338692 Almost same \(\mathrm{pCO}_{2}\) in humans is found in

1 Deoxygenated blood and alveoli
2 Tissues and oxygenated blood
3 Tissues and deoxygenated blood
4 Deoxygenated blood and oxygenated blood
BIOXI17: BREATHING AND EXCHANGE OF GASES

338693 What is the partial pressure of \(\mathrm{O}_{2}\) and \(\mathrm{CO}_{2}\) in atmospheric air?

1 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{159}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{0}}{\rm{.3}}\;{\rm{mmHg}}\)
2 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{104}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
3 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{45}}\;{\rm{mmHg}}\)
4 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{95}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
BIOXI17: BREATHING AND EXCHANGE OF GASES

338694 Inspired air in alveoli remains in close contact with blood. The following layers are present between two -
i. Capillary endothelial membrane
ii. Capillary basement membrane.
iii. Thin interstitial space.
iv. Alveolar epithelial basement membrane.
v. Alveolar epithelium.
Marks the correct sequence during diffusion of \(\mathrm{CO}_{2}-\)

1 iv, i, iii, v, ii
2 v, iv, iii, ii, i
3 i, ii, iii, iv, v
4 ii, v, iii, i, iv
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BIOXI17: BREATHING AND EXCHANGE OF GASES

338691 Which of the following are equal?

1 \(\mathrm{pCO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the resting tissues
2 \(\mathrm{pO}_{2}\) in the deoxygenated blood and \(\mathrm{pCO}_{2}\) in the resting tissues
3 \(\mathrm{pO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the oxygenated blood
4 \(\mathrm{pCO}_{2}\) in the carotid artery and \(\mathrm{pCO}_{2}\) in the pulmonary artery
BIOXI17: BREATHING AND EXCHANGE OF GASES

338692 Almost same \(\mathrm{pCO}_{2}\) in humans is found in

1 Deoxygenated blood and alveoli
2 Tissues and oxygenated blood
3 Tissues and deoxygenated blood
4 Deoxygenated blood and oxygenated blood
BIOXI17: BREATHING AND EXCHANGE OF GASES

338693 What is the partial pressure of \(\mathrm{O}_{2}\) and \(\mathrm{CO}_{2}\) in atmospheric air?

1 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{159}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{0}}{\rm{.3}}\;{\rm{mmHg}}\)
2 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{104}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
3 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{45}}\;{\rm{mmHg}}\)
4 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{95}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
BIOXI17: BREATHING AND EXCHANGE OF GASES

338694 Inspired air in alveoli remains in close contact with blood. The following layers are present between two -
i. Capillary endothelial membrane
ii. Capillary basement membrane.
iii. Thin interstitial space.
iv. Alveolar epithelial basement membrane.
v. Alveolar epithelium.
Marks the correct sequence during diffusion of \(\mathrm{CO}_{2}-\)

1 iv, i, iii, v, ii
2 v, iv, iii, ii, i
3 i, ii, iii, iv, v
4 ii, v, iii, i, iv
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BIOXI17: BREATHING AND EXCHANGE OF GASES

338691 Which of the following are equal?

1 \(\mathrm{pCO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the resting tissues
2 \(\mathrm{pO}_{2}\) in the deoxygenated blood and \(\mathrm{pCO}_{2}\) in the resting tissues
3 \(\mathrm{pO}_{2}\) in the alveoli and \(\mathrm{pO}_{2}\) in the oxygenated blood
4 \(\mathrm{pCO}_{2}\) in the carotid artery and \(\mathrm{pCO}_{2}\) in the pulmonary artery
BIOXI17: BREATHING AND EXCHANGE OF GASES

338692 Almost same \(\mathrm{pCO}_{2}\) in humans is found in

1 Deoxygenated blood and alveoli
2 Tissues and oxygenated blood
3 Tissues and deoxygenated blood
4 Deoxygenated blood and oxygenated blood
BIOXI17: BREATHING AND EXCHANGE OF GASES

338693 What is the partial pressure of \(\mathrm{O}_{2}\) and \(\mathrm{CO}_{2}\) in atmospheric air?

1 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{159}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{0}}{\rm{.3}}\;{\rm{mmHg}}\)
2 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{104}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
3 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{45}}\;{\rm{mmHg}}\)
4 \({\rm{p}}{{\rm{O}}_{\rm{2}}}\;{\rm{95}}\;{\rm{mmHg,pC}}{{\rm{O}}_{\rm{2}}}\;{\rm{40}}\;{\rm{mmHg}}\)
BIOXI17: BREATHING AND EXCHANGE OF GASES

338694 Inspired air in alveoli remains in close contact with blood. The following layers are present between two -
i. Capillary endothelial membrane
ii. Capillary basement membrane.
iii. Thin interstitial space.
iv. Alveolar epithelial basement membrane.
v. Alveolar epithelium.
Marks the correct sequence during diffusion of \(\mathrm{CO}_{2}-\)

1 iv, i, iii, v, ii
2 v, iv, iii, ii, i
3 i, ii, iii, iv, v
4 ii, v, iii, i, iv
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