Q. No.Under normal physiological conditions, what amount of oxygen is delivered to the tissues?
(1) 4 ml
(2) 5 ml
(3) 15 ml
(4) 20 ml
(1) 4 ml
(2) 5 ml
(3) 15 ml
(4) 20 ml
Identify the incorrect statement regarding the enzyme cabonic anhydrase:
(1) RBCs contain a very high concentration of this enzyme
(2) The enzyme is absent in the plasma
(3) It facilitates the reaction catalyzed in both directions
(4) It is a metalloenzyme
Pulmonary fibrosis is a pathological hallmark of:
(1) Chronic obstructive lung disease
(2) Bronchial asthma
(3) Viral Pneumonia in children
(4) Occupational lung diseases
The peripheral chemoreceptors are:
| 1. | more sensitive to a decrease in PCO2 than to a decrease in PO2 |
| 2. | stimulated by hypocapnia |
| 3. | located in the medulla oblongata of the brain stem |
| 4. | more sensitive to a decrease in PO2 than to a decrease in PCO2 |
What percentage of Carbon dioxide is transported in a dissolved state through plasma
(1)7
(2)20-25
(3)70
(4)97
What percentage of oxygen molecule is transported in a dissolved state through plasma
| 1. | 3 | 2. | 20-25 |
| 3. | 70 | 4. | 97 |
Which of the following is true for transport of gases
| 1. | Maximum amount of O2 is transported by RBCs |
| 2. | Maximum amount of CO2 is transported by Plasma as Bicarbonates |
| 3. | Plasma transports both CO2 and O2 |
| 4. | All of the above |
Which of the following is a true statement?
| 1. | Oxygen binding with HB is a reversible process |
| 2. | Oxygen binding with HB is an irreversible process |
| 3. | Hb is not a protein |
| 4. | It’s not a pigment |
The binding of HB with oxygen forms
| 1. | Methamoglobin |
| 2. | Carbhaminohaemoglobin |
| 3. | Oxyhaemoglobin |
| 4. | Carbaminohaemoglobin |
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