Select Question Set:
Q. No.The shape of the oxygen dissociation curve is:
1. a rectangular hyperbola
2. sigmoid
3. ellipse
4. parabola
Subtopic: Respiratory System: Transport of Gases |
96%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
At about what partial pressure of oxygen [mm Hg] is the haemoglobin in blood 50% saturated?
1. 95
2. 75
3. 27
4. 15
1. 95
2. 75
3. 27
4. 15
Subtopic: Respiratory System: Transport of Gases |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
CO2 is carried by haemoglobin as:
1. carbamino-haemoglobin
2. carboxy-haemoglobin
3. deoxy-haemoglobin
4. oxidised haemoglobin
1. carbamino-haemoglobin
2. carboxy-haemoglobin
3. deoxy-haemoglobin
4. oxidised haemoglobin
Subtopic: Respiratory System: Transport of Gases |
90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Identify the incorrect statement regarding carbonic anhydrase:
| 1. | RBCs contain a very high concentration of the enzyme. |
| 2. | It is not present at all in the plasma. |
| 3. | It assists rapid inter-conversion of carbon dioxide and water into carbonic acid, protons and bicarbonate ions. |
| 4. | The active site of the enzyme contains a zinc ion. |
Subtopic: Respiratory System: Transport of Gases |
79%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Under normal physiological conditions, every 100 ml of oxygenated blood can deliver around:
1. 4 ml of O2 to the tissues.
2. 5 ml of O2 to the tissues.
3. 4 ml of O2 to the alveoli.
4. 5 ml of O2 to the alveoli.
1. 4 ml of O2 to the tissues.
2. 5 ml of O2 to the tissues.
3. 4 ml of O2 to the alveoli.
4. 5 ml of O2 to the alveoli.
Subtopic: Respiratory System: Transport of Gases |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Regarding neural regulation of respiration in humans:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | The respiratory rhythm is present in the medulla region of the brain. |
| II: | Pneumotaxic centre present in cerebrum can moderate the functions of the respiratory rhythm centre. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Respiratory System: Regulation of Respiration |
74%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
A difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles characterises:
1. Emphysema
2. Asthma
3. Tuberculosis
4. Common cold
1. Emphysema
2. Asthma
3. Tuberculosis
4. Common cold
Subtopic: Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 |
92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Occupational Respiratory Disorders:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | are caused by long exposure to dust at work place. |
| II: | can give rise to inflammation leading to fibrosis (proliferation of fibrous tissues) and thus causing serious lung damage. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Respiratory Disorders: Part 1 | Respiratory Disorders: Part 2 | Respiratory Disorders - III |
96%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Amongst the following, which gas has the highest affinity for haemoglobin?
1. CO2
2. N2
3. O2
4. CO
1. CO2
2. N2
3. O2
4. CO
Subtopic: Respiratory System: Transport of Gases |
67%
Please attempt this question first.
Hints
At sea level, which of the following values of the intraalveolar pressure is realistically expected to lead to inspiration?
1. 760 mmHg
2. 758 mmHg
3. 763 mmHg
4. 730 mmHg
1. 760 mmHg
2. 758 mmHg
3. 763 mmHg
4. 730 mmHg
Subtopic: Respiratory System: Transport of Gases |
Please attempt this question first.
Hints
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.