- 1(current)
Q. No.Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | Carbon dioxide and oxygen compete for binding sites with the hemoglobin. |
| Statement II: | Oxygen dissociates faster from hemoglobin during exercise. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Exchange of Gases |Â Respiratory System: Transport of Gases |
From NCERT
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Under normal physiological conditions, what percent of haemoglobin is saturated with oxygen when the partial pressure of oxygen is 40 mm Hg?
1. 50
2. 75
3. 90
4. 98
1. 50
2. 75
3. 90
4. 98
Subtopic: Â Respiratory System: Transport of Gases |
 60%
From NCERT
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In the given diagram of the oxygen dissociation curve, under normal physiological conditions, the partial pressure of oxygen at the tissue level is represented by :
1. A
2. B
3. C
4. D
Subtopic: Â Respiratory System: Transport of Gases Part 1 |Â Respiratory System: Transport of Gases Part 2 |Â Respiratory System: Transport of Gases |
From NCERT
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
At the alveolar site, the reaction catalyzed by carbonic anhydrase moves in the direction of:
1. Formation of \(HCO^-_3\)and \(H^+\)
2. Formation of \(CO_2\) and \(H_2O\)
3. Binding of \(O_2\) to \(CO_2\)
4. Dissociation of \(CO_2\) into carbon and oxygen
1. Formation of \(HCO^-_3\)and \(H^+\)
2. Formation of \(CO_2\) and \(H_2O\)
3. Binding of \(O_2\) to \(CO_2\)
4. Dissociation of \(CO_2\) into carbon and oxygen
Subtopic: Â Respiratory System: Transport of Gases |
 61%
From NCERT
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Hints
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | The pO2 of the blood normally has no direct effect on respiration. |
| Statement II: | The pO2 of the oxygenated blood is higher than the pO2 of the alveolar air. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Transport of Gases Part 1 |Â Respiratory System: Transport of Gases Part 2 |Â Respiratory System: Transport of Gases |
 52%
From NCERT
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Which of the following will most likely occur during heavy exercise?
| 1. | Blood pH will decrease in the active tissues. |
| 2. | Less oxygen will be delivered to the tissues due to increased cardiac contractions resulting in increased blood velocity. |
| 3. | Capillmies surrounding contracting skeletal muscles will constrict to allow increased freedom of movement. |
| 4. | The respiratory system will deliver less nitrogen to the blood. |
Subtopic: Â Respiratory System: Transport of Gases |
From NCERT
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Hints
Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Each haemoglobin molecule can carry a maximum of four molecules of O2. |
| Statement II: | Hemoglobin can bind to four molecules of CO2. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Â Respiratory System: Transport of Gases |
From NCERT
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Q. No.
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